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Sexual Precocity in a 16-Month-Old
0 I) K3 R# ^4 s" f% f' `Boy Induced by Indirect Topical+ p2 f( g" f: b% }
Exposure to Testosterone
' ^) r4 q9 n# s* E5 LSamar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,2
0 Z1 B; ~+ E1 eand Kenneth R. Rettig, MD1' J* r5 J6 f0 m5 g
Clinical Pediatrics* p* t- M( K$ L, o; p( M
Volume 46 Number 6
+ N& [$ G& H) v2 FJuly 2007 540-543
" l- D, ~" v$ r, j# v- r$ @1 e3 Z© 2007 Sage Publications
- }6 ~; L- z" Y* N# K10.1177/0009922806296651& H3 Y, c) B% ~2 C0 x
http://clp.sagepub.com! G% X( d. b& H
hosted at& S/ W% \$ l* |& L* b& R
http://online.sagepub.com
& U) \8 N, A; F3 V4 ~Precocious puberty in boys, central or peripheral,7 C! V4 k+ l4 E. ~  V$ ]
is a significant concern for physicians. Central% H  h- m- v$ ~5 l9 o& w
precocious puberty (CPP), which is mediated& G, R5 e: E) \9 t- l) W
through the hypothalamic pituitary gonadal axis, has
% V7 ~9 T8 V' }( |- oa higher incidence of organic central nervous system
$ I  T" y7 w+ l/ xlesions in boys.1,2 Virilization in boys, as manifested/ r" ^$ Z' ]3 E% [3 x6 \
by enlargement of the penis, development of pubic/ B, _- s! n3 q4 E. K( ?: z
hair, and facial acne without enlargement of testi-
3 t" ?9 p4 n: X' L5 ^  lcles, suggests peripheral or pseudopuberty.1-3 We$ D  n5 Y8 [& ]/ D2 [- l: F& z
report a 16-month-old boy who presented with the
' j/ _  L. o7 Q1 f$ M6 h  fenlargement of the phallus and pubic hair develop-
) N. P) |8 [! _: B+ s! @ment without testicular enlargement, which was due
& E* G/ [8 N5 ?8 T, Hto the unintentional exposure to androgen gel used by( I. c+ _# Q& ^  n1 u
the father. The family initially concealed this infor-5 h6 P) p/ m9 n1 j6 i6 K0 n) ?
mation, resulting in an extensive work-up for this: t$ I$ V+ q9 @( z/ t8 W3 U9 [
child. Given the widespread and easy availability of5 A+ N% u% Y7 Z4 |* ?2 i/ k( U
testosterone gel and cream, we believe this is proba-+ S: I9 u: F, g3 X5 N& N
bly more common than the rare case report in the- K( x% k+ q" E5 U. P# y+ M
literature.47 f- H$ O. j0 d9 n6 z; m
Patient Report  h3 }2 E( s/ O
A 16-month-old white child was referred to the$ ?2 H8 {; d* E. T
endocrine clinic by his pediatrician with the concern7 w4 r9 L3 d& o6 J
of early sexual development. His mother noticed6 @. ~7 A* y4 w2 X( O* l
light colored pubic hair development when he was! ~: \% F/ T% w6 b9 J
From the 1Division of Pediatric Endocrinology, 2University of' F3 m6 K7 I6 y
South Alabama Medical Center, Mobile, Alabama.6 R: _3 q" |5 D1 d% y: c
Address correspondence to: Samar K. Bhowmick, MD, FACE,
( U8 y, K4 _: AProfessor of Pediatrics, University of South Alabama, College of& T! {; G" ~, G% V- {6 z
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;( b% N& |* {- B3 U" K4 f0 P
e-mail: [email protected].6 l7 t, S' O! H, n( d4 h" E7 T9 s# @2 x
about 6 to 7 months old, which progressively became- _% q5 G' V9 ]5 ~6 l
darker. She was also concerned about the enlarge-: V, ^7 M8 D- ?2 z, R( l
ment of his penis and frequent erections. The child9 \# }% Y; x  J
was the product of a full-term normal delivery, with1 M- N3 h  z  a1 R' A
a birth weight of 7 lb 14 oz, and birth length of
  ^: S9 c: g$ |& J1 C- c$ v( R! N! b20 inches. He was breast-fed throughout the first year1 u) Z8 \3 z, \0 e
of life and was still receiving breast milk along with
: }* d' c4 o5 r/ Csolid food. He had no hospitalizations or surgery,+ }7 s+ C5 l: }! C  t
and his psychosocial and psychomotor development8 J% d, U0 P2 {" X+ |4 L5 e$ {
was age appropriate.) E4 R" N. B4 @3 u
The family history was remarkable for the father,
5 V9 i# S5 b8 O4 z- T6 k& xwho was diagnosed with hypothyroidism at age 16,
$ V3 c0 @) T& c# ~' Vwhich was treated with thyroxine. The father’s
! ^# Y4 Z7 h9 Iheight was 6 feet, and he went through a somewhat5 _* T1 N; R: X8 H7 d
early puberty and had stopped growing by age 14.0 }+ x2 J3 G) |1 F/ R3 C4 q
The father denied taking any other medication. The
5 c4 ?# h; D+ Rchild’s mother was in good health. Her menarche$ C- L6 z; I# D8 @. i& |' d4 }
was at 11 years of age, and her height was at 5 feet- h4 }# v8 m* w4 _' @
5 inches. There was no other family history of pre-- o/ }% w* S" o# E/ V2 R# B
cocious sexual development in the first-degree rela-
# U/ @# Q  }+ Q/ Y; u& _# |: ctives. There were no siblings.
4 v9 p( a; y1 r# ~* q' H( zPhysical Examination- k; V1 n+ v6 {- ?: z6 S5 f; d
The physical examination revealed a very active,
% W+ h0 ]) i7 Hplayful, and healthy boy. The vital signs documented
" E3 ]- W: V0 e8 H) \2 b0 La blood pressure of 85/50 mm Hg, his length was) S6 h& a0 Z+ i: I5 M* ^6 u
90 cm (>97th percentile), and his weight was 14.4 kg: `" s8 e" k9 j4 D/ @5 W
(also >97th percentile). The observed yearly growth
1 f/ P  ?  H$ Vvelocity was 30 cm (12 inches). The examination of- S* O5 Z* y, y" z! x
the neck revealed no thyroid enlargement.
3 Z: D8 |6 m: \- NThe genitourinary examination was remarkable for
( R8 b0 U$ G- ~( t6 Fenlargement of the penis, with a stretched length of0 C* a0 \) H/ T4 F" u* |. O+ u
8 cm and a width of 2 cm. The glans penis was very well+ I' T8 l" f  _$ P" O; N
developed. The pubic hair was Tanner II, mostly around
# y; Z; ~& Q: z1 u. i5406 H( O. n+ r) F$ v% p3 ?7 [
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
7 x/ @, A: J1 Q/ Ythe base of the phallus and was dark and curled. The- ]/ t  v$ W8 t% r0 h
testicular volume was prepubertal at 2 mL each.. W2 ?2 e) N- o$ E
The skin was moist and smooth and somewhat2 g5 i7 R' k' b3 }( a5 {
oily. No axillary hair was noted. There were no
: t  w/ }! C& |  J* Q0 }abnormal skin pigmentations or café-au-lait spots.
! Y3 a: ], t- h: a5 a# P8 F- xNeurologic evaluation showed deep tendon reflex 2+
) U. f! P0 e7 s) {, y. ubilateral and symmetrical. There was no suggestion& y' L( K& A5 b3 M
of papilledema.
+ e. r2 S7 h$ iLaboratory Evaluation
; \) [& ^9 M8 i' a) v' WThe bone age was consistent with 28 months by
& d4 s7 [- T$ Y% E" Qusing the standard of Greulich and Pyle at a chrono-) S5 R6 z8 k/ r
logic age of 16 months (advanced).5 Chromosomal: g) U6 X  N) F. G! x6 p
karyotype was 46XY. The thyroid function test+ [* `" w1 ]- G" i/ p
showed a free T4 of 1.69 ng/dL, and thyroid stimu-3 v) c& _+ c' t8 v" M! {
lating hormone level was 1.3 µIU/mL (both normal).
$ l: u* r8 k; d& o" E% H% t% uThe concentrations of serum electrolytes, blood+ u  K3 V3 `4 k$ ?9 I: E. o
urea nitrogen, creatinine, and calcium all were% Y. G0 F# \/ m  s' z
within normal range for his age. The concentration
# F) T! X6 J: d8 O; m( ]: fof serum 17-hydroxyprogesterone was 16 ng/dL
& ]- r6 l: R" o6 Z* `( M$ S(normal, 3 to 90 ng/dL), androstenedione was 20. o; D+ r$ `# ?
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-, X: v* ~4 f$ s% ^8 d. W$ U- K: g
terone was 38 ng/dL (normal, 50 to 760 ng/dL),
" s' F5 I4 o2 M7 f  h7 T- kdesoxycorticosterone was 4.3 ng/dL (normal, 7 to$ o! T4 ?1 F) t% [1 ~
49ng/dL), 11-desoxycortisol (specific compound S)4 u6 k6 f: \$ W# r: X- z# L
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-, d6 o, F( j8 u' p* a
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total
3 v' J: B' w7 c& r5 ytestosterone was 60 ng/dL (normal <3 to 10 ng/dL),
, a2 z- q/ o1 r* V$ ~. wand β-human chorionic gonadotropin was less than
+ c( ^$ |$ k5 B! F5 mIU/mL (normal <5 mIU/mL). Serum follicular
5 _6 l& d1 ~( B, }5 F( E  Q; {& r) istimulating hormone and leuteinizing hormone# S; t/ d9 |2 S& l8 L1 }# \& k
concentrations were less than 0.05 mIU/mL4 z; @9 c6 T- V" ?4 ^& I7 p3 v
(prepubertal).$ W- b: L9 t+ f; m8 N8 V7 o
The parents were notified about the laboratory0 N. ~6 d5 ~6 V* `
results and were informed that all of the tests were! i* U+ G  @8 O; A6 U9 @
normal except the testosterone level was high. The) R, t( t* o' Z4 [' ^
follow-up visit was arranged within a few weeks to7 ?, E& j6 \4 X8 w5 V( Q4 j9 J4 t
obtain testicular and abdominal sonograms; how-
9 N$ [7 h7 \: Y4 Q! m; F3 Lever, the family did not return for 4 months.
' g' ~  q" ?1 p3 Q. MPhysical examination at this time revealed that the. W) H! G# w, ?9 k% l# p) O' b
child had grown 2.5 cm in 4 months and had gained
0 X* j& A8 g# P2 kg of weight. Physical examination remained5 Q/ ]9 M  b  o7 {7 V6 v
unchanged. Surprisingly, the pubic hair almost com-
+ i4 E9 T7 D: N0 T3 o" R) bpletely disappeared except for a few vellous hairs at4 c7 ^- G3 C1 m2 J* x( j& j4 s
the base of the phallus. Testicular volume was still 22 B% i9 h- @" r
mL, and the size of the penis remained unchanged.
- b1 e1 r; P7 p$ A, ^" YThe mother also said that the boy was no longer hav-
( V; }5 o( \( n- ding frequent erections.8 R6 n) @; Y! Q) @0 o; F* _
Both parents were again questioned about use of$ R5 A5 ^3 @% y
any ointment/creams that they may have applied to7 M0 ^0 H/ v# R1 i+ x3 \
the child’s skin. This time the father admitted the
. v5 f7 v( x$ d  Z) WTopical Testosterone Exposure / Bhowmick et al 5411 N7 F* X. F3 R( }  a% K* y
use of testosterone gel twice daily that he was apply-, p8 a% o" u  k  i( d7 k: f
ing over his own shoulders, chest, and back area for- u, F2 g; R2 ]: c3 h9 y8 J# B9 F
a year. The father also revealed he was embarrassed
) h1 [5 r' F/ _6 qto disclose that he was using a testosterone gel pre-, i2 A  @1 L- G" i; \; }* U8 J3 T% \
scribed by his family physician for decreased libido9 y2 D' K% q7 o# y% Q
secondary to depression.
7 e( `- y$ V2 g% N; k5 `The child slept in the same bed with parents.
1 m& X0 d  Z) V. G( Y7 U" zThe father would hug the baby and hold him on his6 V2 A" T" E1 |, ~$ j4 F2 w) x  |
chest for a considerable period of time, causing sig-9 w; w5 E1 p- N# x  G
nificant bare skin contact between baby and father.6 `" E' C! E1 k! w8 a
The father also admitted that after the phone call,
" N' c; i, c  D4 ]$ o& K/ ?when he learned the testosterone level in the baby. j4 Q6 T0 g. c( ?( `% E% W/ _4 ]
was high, he then read the product information5 m2 f/ {1 h( c+ r6 V! Y
packet and concluded that it was most likely the rea-
2 }3 x- E9 f& E7 G$ e" M& oson for the child’s virilization. At that time, they4 W3 C4 S& d. D9 H
decided to put the baby in a separate bed, and the
! L* |" K8 q4 h  sfather was not hugging him with bare skin and had
/ T; `0 ~4 _+ l3 w" W% mbeen using protective clothing. A repeat testosterone
4 O8 ~: x$ l+ }# Z# @3 D  t, T" L7 wtest was ordered, but the family did not go to the3 a8 O+ z0 R: l/ H& i  L$ L9 f' ?
laboratory to obtain the test.
5 H" u+ C, ?% o4 O& }. i$ g6 F0 JDiscussion9 Q, O# X3 R+ f+ ^
Precocious puberty in boys is defined as secondary5 }# l8 |& R! E, W
sexual development before 9 years of age.1,4
) X" A! M9 J: k2 a. L+ ^. x* f. ^Precocious puberty is termed as central (true) when
! J7 u  J2 o& P/ r3 [( c7 Z0 Tit is caused by the premature activation of hypo-
' E" u9 ^- q* Wthalamic pituitary gonadal axis. CPP is more com-
! U( n6 d( p8 Z; ~. m& }5 @mon in girls than in boys.1,3 Most boys with CPP; [) H. ]7 D  `& S! w/ C/ [" s) l
may have a central nervous system lesion that is
9 y- b$ q1 t: I# h6 K3 O6 p+ V8 k! hresponsible for the early activation of the hypothal-
2 A4 C( x- z  s$ f8 z. S+ A; [amic pituitary gonadal axis.1-3 Thus, greater empha-
+ t$ b) a% \! w2 l6 m1 Bsis has been given to neuroradiologic imaging in
  Y7 J9 h! S% n: a/ aboys with precocious puberty. In addition to viril-
  Y4 Z; q) f/ [- [# a  }( Jization, the clinical hallmark of CPP is the symmet-
9 x4 l& g5 J7 n: v* [6 K/ k2 Frical testicular growth secondary to stimulation by
6 e! v: z( m5 i- l* Ogonadotropins.1,39 u: m; t3 X, t
Gonadotropin-independent peripheral preco-
  j) N/ o3 O. G& @/ `, G  kcious puberty in boys also results from inappropriate
7 v( e6 j5 R) U' o8 J, Handrogenic stimulation from either endogenous or1 E0 I. z) _# p3 F
exogenous sources, nonpituitary gonadotropin stim-
; Y  K3 ]( E9 Nulation, and rare activating mutations.3 Virilizing
9 j1 A7 f' f, p  e4 Q1 E6 Ycongenital adrenal hyperplasia producing excessive6 E, C  N& P! J& a: e7 r
adrenal androgens is a common cause of precocious; \4 Y/ ]( c# z: J- i3 s7 ~+ F6 A9 Q
puberty in boys.3,4
5 a* Y4 G8 w6 i6 o( E! ?9 s# wThe most common form of congenital adrenal
0 U$ h  o7 w' w$ @, Zhyperplasia is the 21-hydroxylase enzyme deficiency.7 ]' W: A4 ]* K. l
The 11-β hydroxylase deficiency may also result in9 c& n4 m. W2 c& ?
excessive adrenal androgen production, and rarely,- Y! K* g. T. f2 e2 O  ]
an adrenal tumor may also cause adrenal androgen
# t; M6 R' N* I7 ]' X- xexcess.1,3
1 l8 S; T! B/ T5 l1 m7 ~2 Oat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
& S/ q& k. x7 A1 X1 R- s4 O& q542 Clinical Pediatrics / Vol. 46, No. 6, July 2007
4 ]6 Y! `# p3 _/ W! QA unique entity of male-limited gonadotropin-
: x, s: ^1 E: C, a- N" G5 G. a$ N3 ~& Qindependent precocious puberty, which is also known$ v1 c9 ^4 Z/ D4 W9 @
as testotoxicosis, may cause precocious puberty at a/ i- W" e& T. d/ m5 s
very young age. The physical findings in these boys. _  i$ f; R" L8 I
with this disorder are full pubertal development,
) ]2 T9 G2 c  L! \( Dincluding bilateral testicular growth, similar to boys
# X: C- r- f8 _/ D; Kwith CPP. The gonadotropin levels in this disorder  Q8 b1 U  i1 H; n8 |
are suppressed to prepubertal levels and do not show( j. t) }& F4 Z0 O. [! G
pubertal response of gonadotropin after gonadotropin-0 W* [  Z6 P" o0 K, x' R3 D; X
releasing hormone stimulation. This is a sex-linked
- f$ Q  A; J# @- {autosomal dominant disorder that affects only
6 V: ]0 C. m3 w3 x5 [5 T' b4 Pmales; therefore, other male members of the family
! R% n- Y2 p+ o% M6 u$ F/ Zmay have similar precocious puberty.34 `( N) |8 v8 }; X! t
In our patient, physical examination was incon-5 [5 e' h9 a# W1 H. K
sistent with true precocious puberty since his testi-
( d, r0 ^2 v% o0 |7 I2 E+ Lcles were prepubertal in size. However, testotoxicosis
. @7 {. B& |& [3 Hwas in the differential diagnosis because his father
' T4 A* ]4 n- l7 J3 V, {+ g% i5 Zstarted puberty somewhat early, and occasionally,7 ~9 s, g, g. L- G4 T" v
testicular enlargement is not that evident in the
3 z8 j9 Y# v5 f* @% H, C0 d& Mbeginning of this process.1 In the absence of a neg-) e/ y- O+ s4 s7 x
ative initial history of androgen exposure, our
) a% r- C& M8 z" }$ Tbiggest concern was virilizing adrenal hyperplasia,0 c3 X3 w. s4 N# w
either 21-hydroxylase deficiency or 11-β hydroxylase2 c! t. p  J2 [
deficiency. Those diagnoses were excluded by find-( V4 I7 I: H& E* g8 R
ing the normal level of adrenal steroids./ @8 {7 t  {) ?. g5 l' M
The diagnosis of exogenous androgens was strongly
5 j' A: ], u  ]- Wsuspected in a follow-up visit after 4 months because5 [9 b1 u  d% Y3 t
the physical examination revealed the complete disap-  u* c) K- V' ?
pearance of pubic hair, normal growth velocity, and
3 B. S* A' b: U; W0 c0 E! I) v$ Vdecreased erections. The father admitted using a testos-
1 }& o/ ?1 Y0 zterone gel, which he concealed at first visit. He was; i) B8 m8 p! K. w! r# F) d& ^
using it rather frequently, twice a day. The Physicians’
. h) u4 X2 r+ D- DDesk Reference, or package insert of this product, gel or: m0 W; d4 K# j5 n2 G% H) V
cream, cautions about dermal testosterone transfer to
- N7 I; e/ b& h; ^# k& [unprotected females through direct skin exposure.
1 H# N9 l6 h# i! l! I- pSerum testosterone level was found to be 2 times the
& {2 s: m8 |' [, D5 z. P7 ?8 Pbaseline value in those females who were exposed to- j0 c& T3 e- y$ I. P$ U" P
even 15 minutes of direct skin contact with their male5 a' n2 o0 I$ O
partners.6 However, when a shirt covered the applica-
: y3 G. u4 f' [: v1 b0 otion site, this testosterone transfer was prevented.8 p8 _  Q" n' ^2 a2 O  N
Our patient’s testosterone level was 60 ng/mL,+ X0 m+ r. D- E2 b; E
which was clearly high. Some studies suggest that4 F/ a& U- T; m# C5 m
dermal conversion of testosterone to dihydrotestos-: K4 j! P; [+ e5 H
terone, which is a more potent metabolite, is more
2 B$ [7 w; j5 cactive in young children exposed to testosterone
1 i0 n: z! S& {. U2 eexogenously7; however, we did not measure a dihy-7 e2 p" S" F7 Q& @/ F) Q
drotestosterone level in our patient. In addition to
+ d# ]3 a/ d& P' rvirilization, exposure to exogenous testosterone in" v/ z& r" C, v9 E8 Z7 n% X
children results in an increase in growth velocity and5 N3 q' L6 F, r2 o: i
advanced bone age, as seen in our patient./ O( v( C0 u- s9 L! E
The long-term effect of androgen exposure during
7 E1 e7 T+ I  @1 J4 S6 U1 Searly childhood on pubertal development and final; _1 r1 P# S% T7 D9 E+ v% T
adult height are not fully known and always remain1 u1 x- t" c, U1 K/ {% r% |
a concern. Children treated with short-term testos-
7 X6 b' x( {/ ?2 _5 a9 Z/ W$ pterone injection or topical androgen may exhibit some
: ?! X9 s/ o% \acceleration of the skeletal maturation; however, after
- ?) S$ s6 v3 G1 o/ jcessation of treatment, the rate of bone maturation- o1 M5 p4 D) f; y. t/ Y& |
decelerates and gradually returns to normal.8,9
! z5 T/ f. M2 p. pThere are conflicting reports and controversy: k, r: l- _5 F) A8 Y6 h5 G
over the effect of early androgen exposure on adult+ E9 l3 @8 a& D; X2 I) L
penile length.10,11 Some reports suggest subnormal
( x4 v% F  J: l, I& f9 L# Jadult penile length, apparently because of downreg-5 t! C# K/ l3 r( @$ `- d4 G0 M
ulation of androgen receptor number.10,12 However,6 O; r# M# S9 I0 {4 A' x
Sutherland et al13 did not find a correlation between: z- r2 |& [) @
childhood testosterone exposure and reduced adult
  C8 V- m' q. j  Jpenile length in clinical studies.1 I7 c5 _' T1 Y) a$ O  C# x+ `
Nonetheless, we do not believe our patient is
( f$ m6 m$ l$ L! X! d, ogoing to experience any of the untoward effects from
1 O  V; E: Y4 f+ S9 j; A: Rtestosterone exposure as mentioned earlier because; `: k! Q* K) [/ v
the exposure was not for a prolonged period of time.
, F  G. q2 r9 A; t8 [1 UAlthough the bone age was advanced at the time of! _6 q3 ]9 M4 @  @. B' d0 l. W
diagnosis, the child had a normal growth velocity at
. W; Y/ l% E5 U% l8 G7 Uthe follow-up visit. It is hoped that his final adult
7 x1 B( Z, B2 R4 ?  M: aheight will not be affected.. p9 A! f4 U, I) |& X
Although rarely reported, the widespread avail-! F, C: k3 `) d% I$ I& Z
ability of androgen products in our society may  A6 N. v" L/ m; L  a
indeed cause more virilization in male or female9 p' x4 R; a$ z* m+ n
children than one would realize. Exposure to andro-$ K, w5 M) N* c# ?( R( b1 I: ~
gen products must be considered and specific ques-9 g# W' X2 _$ L6 ^* J
tioning about the use of a testosterone product or
2 ]3 e, k" V+ ~8 m- X4 u% ^gel should be asked of the family members during8 x9 ^" N/ M! X
the evaluation of any children who present with vir-4 B4 B" _( D8 z/ T+ y( B. A. |# i0 _, L
ilization or peripheral precocious puberty. The diag-
2 I5 Z1 l% u$ B- inosis can be established by just a few tests and by
2 H/ s) p- m/ c! Fappropriate history. The inability to obtain such a
# a3 t) X, v" ahistory, or failure to ask the specific questions, may
/ R8 r4 O3 f- o& w/ Zresult in extensive, unnecessary, and expensive
: O/ q7 F7 r; X& h$ w7 S% q0 \. zinvestigation. The primary care physician should be
& m6 F" `+ [/ R7 x- Oaware of this fact, because most of these children; \- M/ x: E* x4 }
may initially present in their practice. The Physicians’5 S8 m# {, s/ ]1 `
Desk Reference and package insert should also put a2 \: r- _0 o. N6 b
warning about the virilizing effect on a male or4 h0 I, Z; ]5 j2 v/ G% v4 s: L) C5 G
female child who might come in contact with some-' U2 p$ \& s% G& `, ], J4 O
one using any of these products." S/ u0 o6 d! A, o: [: m! \
References6 Y4 `- i# G2 ]3 O1 I! `
1. Styne DM. The testes: disorder of sexual differentiation
" k+ p' B, X2 p7 m: L$ l! B- J4 x$ P. oand puberty in the male. In: Sperling MA, ed. Pediatric7 D+ P+ ]% d" {0 w% ~
Endocrinology. 2nd ed. Philadelphia, PA: WB Saunders;* Z, f- V" \6 B- E
2002: 565-628.
7 E3 I' }7 y* J, K! `2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious6 F+ k% J) S8 g2 k) G+ k
puberty in children with tumours of the suprasellar pineal
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Sexual Precocity in a 16-Month-Old  L1 Q" p6 ]+ X5 o$ T* {
Boy Induced by Indirect Topical
. D; t' |9 w, v* n4 N8 qExposure to Testosterone# l: ~* L6 |& a7 |' M
Samar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,2
0 O- `% u0 ~% V* ?, }3 a* mand Kenneth R. Rettig, MD1
; g( q+ E1 \4 x" Y" y4 S* EClinical Pediatrics% g% Q$ v2 K- X4 m2 `: l
Volume 46 Number 62 h" g  o, s" n: m
July 2007 540-543/ ?( x" L& V: \8 V! W  e, c
© 2007 Sage Publications3 d6 \( `! G" Y; Z& ^7 y( X
10.1177/0009922806296651! ]* g+ @; v2 d$ t+ E2 Q- y
http://clp.sagepub.com
) B, I' N0 U6 e2 s0 r# P0 t) Yhosted at
/ R' |9 R+ @: A  Y, u. v" M- mhttp://online.sagepub.com
# v" ~0 v, G5 @0 d1 vPrecocious puberty in boys, central or peripheral,
4 B' k) P0 R- g3 h' b  lis a significant concern for physicians. Central4 n/ Y) h  R& r4 N4 f" P  C
precocious puberty (CPP), which is mediated
; D7 N  x- q4 H- a9 g& a" g& Jthrough the hypothalamic pituitary gonadal axis, has, N: Q6 O( @; s- K5 o: q8 ^
a higher incidence of organic central nervous system
% R3 {5 A/ k. |/ N* klesions in boys.1,2 Virilization in boys, as manifested
9 d7 n5 v5 _% J; kby enlargement of the penis, development of pubic
) w$ [: a; |# N) ]2 _hair, and facial acne without enlargement of testi-
" y9 J1 n# p* f. ]9 H2 {" _cles, suggests peripheral or pseudopuberty.1-3 We6 U  L% E' k' S& Z
report a 16-month-old boy who presented with the
/ Z  f2 I' q) j9 e; \6 Kenlargement of the phallus and pubic hair develop-$ P, B0 g5 u- K; t6 q4 c4 k) d
ment without testicular enlargement, which was due
, h/ T" p; y) A, _4 _  [* qto the unintentional exposure to androgen gel used by
$ q7 g; ?! X+ T1 H# t) cthe father. The family initially concealed this infor-& W7 `2 E4 z8 S- Q2 l! ^9 W
mation, resulting in an extensive work-up for this  v0 v9 `8 ?. }5 k& }
child. Given the widespread and easy availability of/ K0 c4 b8 T+ g- \
testosterone gel and cream, we believe this is proba-
0 |9 h+ c- u# h' V/ @bly more common than the rare case report in the+ e9 U  W0 Y% n
literature.4
( V% {8 G/ e' l! U" kPatient Report
6 c$ }# z, z5 a/ uA 16-month-old white child was referred to the
/ R# h5 |+ }' z+ P3 Eendocrine clinic by his pediatrician with the concern
7 B( o) l0 v# n' `- [of early sexual development. His mother noticed! [% X8 l+ _1 l9 i# L4 ^
light colored pubic hair development when he was- S# A; V! P! |( Z# X& ^3 R
From the 1Division of Pediatric Endocrinology, 2University of! i; O2 b' B$ n- e1 w
South Alabama Medical Center, Mobile, Alabama.
+ ]+ ^5 Q! Y. T9 ?5 F% ^Address correspondence to: Samar K. Bhowmick, MD, FACE,
1 l% w- o( L4 f. E% UProfessor of Pediatrics, University of South Alabama, College of2 \( T. y& B9 W, g2 @
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;* v; {/ _, y( n! [+ M. l
e-mail: [email protected]./ H& |# A  f8 q! G  R" U
about 6 to 7 months old, which progressively became5 I3 \# o! K/ |6 v4 |$ o3 h
darker. She was also concerned about the enlarge-
# z6 R% e& k) oment of his penis and frequent erections. The child8 T. s4 Y1 D$ |, o  r: n
was the product of a full-term normal delivery, with
) m3 J# A# a% q# Ja birth weight of 7 lb 14 oz, and birth length of  M2 E$ d4 |! q9 W/ q
20 inches. He was breast-fed throughout the first year( s2 V0 A) @& i
of life and was still receiving breast milk along with
: }2 ]2 |1 G0 ~# @5 _$ p2 P/ Zsolid food. He had no hospitalizations or surgery,
7 o1 ?( Q4 B3 {" Y; O# P/ ~6 }and his psychosocial and psychomotor development. c: V  Y( x% k* V7 g3 Y/ I
was age appropriate.
, Z! F5 O3 R; `0 n9 b& CThe family history was remarkable for the father,
" n; ?' c1 n+ z, b# H6 B6 Ywho was diagnosed with hypothyroidism at age 16,
! Z' M* \1 F4 C) Cwhich was treated with thyroxine. The father’s
& e" t5 q+ y" ]" z. R- I4 Yheight was 6 feet, and he went through a somewhat
- Y; v# q! i/ |& D$ j9 eearly puberty and had stopped growing by age 14.
( D$ A/ H7 |) X& Q: jThe father denied taking any other medication. The, m- b' P( F. V4 J" Q9 H
child’s mother was in good health. Her menarche
/ j9 C* s& |# ?4 ~/ Vwas at 11 years of age, and her height was at 5 feet
# m# }# x2 X7 B% y4 ]+ _. X5 inches. There was no other family history of pre-8 u! y1 {4 }) K
cocious sexual development in the first-degree rela-1 f. b1 M* H* B  @! N6 {& z6 K7 {
tives. There were no siblings.; ^- V- i* j$ Q" y- D2 [
Physical Examination
7 @* Y9 ^8 U8 LThe physical examination revealed a very active,
; c" ]: B2 a: a3 B  b: C1 Eplayful, and healthy boy. The vital signs documented
' B1 M# K2 o; G" u2 Oa blood pressure of 85/50 mm Hg, his length was
% i1 M5 z5 y( Y; `6 K90 cm (>97th percentile), and his weight was 14.4 kg- i' \) ]9 p/ S. V2 V
(also >97th percentile). The observed yearly growth
  e5 ~& f: K% l! K$ X4 f* R' Vvelocity was 30 cm (12 inches). The examination of
$ Q2 Y- m- d. `$ A/ othe neck revealed no thyroid enlargement." t6 w- L6 Z6 @( _, N- N
The genitourinary examination was remarkable for7 f* g, b$ h3 [, H! [' h
enlargement of the penis, with a stretched length of( o( r' {' x0 m1 q3 T$ r
8 cm and a width of 2 cm. The glans penis was very well
" x$ H+ C" Z8 N4 Bdeveloped. The pubic hair was Tanner II, mostly around
1 q( i) j! h) u2 G540
3 V3 r& ]8 Q5 m5 c! lat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from  D, P( ^  p8 x" d/ k/ f6 ]- x" G
the base of the phallus and was dark and curled. The! l  b& b$ \' T% U! }) x
testicular volume was prepubertal at 2 mL each.
6 A- [* k9 d, M  F3 ^+ wThe skin was moist and smooth and somewhat
3 b% s9 b* r1 e9 t1 ]& [; b0 Qoily. No axillary hair was noted. There were no  y. _; i( D; d; x  B$ {& A
abnormal skin pigmentations or café-au-lait spots.4 m4 t2 [; ?6 k+ ~; u: {9 e- Q1 m2 b4 N1 q
Neurologic evaluation showed deep tendon reflex 2+
( _8 W/ w! ]* B, R6 G2 Q% Vbilateral and symmetrical. There was no suggestion) J0 X( [* C# }/ P9 ?
of papilledema.6 [) S) d& W: @- y- A/ R
Laboratory Evaluation( f8 y; m' o, f, w+ r
The bone age was consistent with 28 months by
$ f# ^8 ?8 r% O# [' H0 Susing the standard of Greulich and Pyle at a chrono-. @  F; O/ e2 c8 k
logic age of 16 months (advanced).5 Chromosomal3 |' v, t1 m0 D; s! [
karyotype was 46XY. The thyroid function test+ E7 L* `0 y" i0 K% B: p9 K% ~
showed a free T4 of 1.69 ng/dL, and thyroid stimu-1 K7 u8 T- W7 T3 w: ]9 i; i
lating hormone level was 1.3 µIU/mL (both normal).# \* C5 n' H" r  M
The concentrations of serum electrolytes, blood, W+ K, @' G* {- y1 M
urea nitrogen, creatinine, and calcium all were6 {& e2 a" z5 k! B" o! j
within normal range for his age. The concentration$ o3 z+ Z7 y. o/ H$ U2 |1 c* n
of serum 17-hydroxyprogesterone was 16 ng/dL
& U( |  T, Q; k; O(normal, 3 to 90 ng/dL), androstenedione was 20
# Y9 c. R3 N/ ~: k" dng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-
* k6 i: V' X2 N4 U4 c2 E, y' Yterone was 38 ng/dL (normal, 50 to 760 ng/dL),
  z8 ?5 c  \# k2 f$ z% r$ h' Edesoxycorticosterone was 4.3 ng/dL (normal, 7 to1 U2 b9 @1 F/ A8 u- d
49ng/dL), 11-desoxycortisol (specific compound S)9 \6 M7 r9 z9 g0 \/ W; Y, W
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-. ^6 k) |1 p5 ~  w0 M. a  T
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total! d$ `; R3 J6 a' j0 W
testosterone was 60 ng/dL (normal <3 to 10 ng/dL),
, @5 |$ P" B3 [9 @0 land β-human chorionic gonadotropin was less than
5 _( F# }4 m4 @# g3 m1 O- j5 mIU/mL (normal <5 mIU/mL). Serum follicular
- x$ W2 y% h; L/ ~% q2 E4 Astimulating hormone and leuteinizing hormone! k: A5 J# n( E4 g1 [7 q
concentrations were less than 0.05 mIU/mL: U  O  Z2 j" k$ s1 W
(prepubertal).
8 Q1 e* k& @6 f8 w; `" cThe parents were notified about the laboratory, c' V; V% j; q1 t" q5 O* R  ?
results and were informed that all of the tests were& D) h. g( I. D' C
normal except the testosterone level was high. The
5 L9 J3 @, t; i% F/ efollow-up visit was arranged within a few weeks to! L4 ^, x/ W/ s& F6 X7 n- O
obtain testicular and abdominal sonograms; how-
) g) y' t) m: u! w; }ever, the family did not return for 4 months./ C% l! O+ d6 L; ~# R# L# _9 S
Physical examination at this time revealed that the1 J, _. X- ~9 j1 o
child had grown 2.5 cm in 4 months and had gained6 _1 l( P4 l; H: A6 [* p' Z
2 kg of weight. Physical examination remained2 G2 P8 A5 K' i
unchanged. Surprisingly, the pubic hair almost com-
# W$ w, T6 }* H' L7 @; Gpletely disappeared except for a few vellous hairs at
" X; {8 ?5 w3 A7 R1 o3 Ythe base of the phallus. Testicular volume was still 25 A& W" d! {9 k6 ]# ]
mL, and the size of the penis remained unchanged.
( ]: t7 D5 g; q9 o% E! v$ R2 @+ @The mother also said that the boy was no longer hav-
& ~$ L0 J" y4 R, }; m5 wing frequent erections.
9 I9 o' T- l! x; fBoth parents were again questioned about use of! I/ y+ z0 B6 {
any ointment/creams that they may have applied to3 I& ~" }) ~$ z& S8 \6 P6 {
the child’s skin. This time the father admitted the" z/ }; i" @7 H  h
Topical Testosterone Exposure / Bhowmick et al 541% _( Z0 q' |5 o
use of testosterone gel twice daily that he was apply-
( w: j( O& ]% b2 Ping over his own shoulders, chest, and back area for
8 \2 i0 ?" K9 ra year. The father also revealed he was embarrassed
5 H+ B) P# S  s, R9 f6 }# ]to disclose that he was using a testosterone gel pre-
! w1 H$ O4 B8 c1 y0 I- |# Oscribed by his family physician for decreased libido# ?3 s! \& R* `3 e* D6 z
secondary to depression.0 U- S2 ?7 [0 z; c( I1 N( C* {
The child slept in the same bed with parents.+ c( ?2 P% D! m  x; h( S
The father would hug the baby and hold him on his+ Z$ s4 n4 i0 C7 L4 V
chest for a considerable period of time, causing sig-
5 c* K% I$ i8 enificant bare skin contact between baby and father.9 d- ?" l; s! U
The father also admitted that after the phone call,3 g# g1 g& _7 V+ L- ]6 }
when he learned the testosterone level in the baby7 ^( T, Q  |% w
was high, he then read the product information1 t8 }* `, R) |/ `+ U
packet and concluded that it was most likely the rea-
. T% p; V5 |2 m- t( M8 Xson for the child’s virilization. At that time, they
; I9 u+ p, _1 U) h0 P' v0 Q; f5 Xdecided to put the baby in a separate bed, and the
* s6 Y" T8 ]1 M; h( C  ^father was not hugging him with bare skin and had
7 z5 \5 p' ?% lbeen using protective clothing. A repeat testosterone" \: i: l* M/ M  X2 K- O1 C+ J# ~
test was ordered, but the family did not go to the3 L2 e6 X$ Y0 A4 X; }4 z, M1 ^6 x" Q& Q# p
laboratory to obtain the test.& u2 ?  y9 F2 m; m; V" s& D0 q
Discussion1 h* X) h7 U! b* s
Precocious puberty in boys is defined as secondary7 t4 D4 ]& j! P6 {
sexual development before 9 years of age.1,4: M  O, t, ?6 a0 Z0 @
Precocious puberty is termed as central (true) when
. x( K9 s$ H; fit is caused by the premature activation of hypo-
3 ?( }+ [+ d5 b7 j4 z! d, D2 hthalamic pituitary gonadal axis. CPP is more com-3 g  _; h6 ~7 T" M8 f% j
mon in girls than in boys.1,3 Most boys with CPP
% ^- G7 _, W' imay have a central nervous system lesion that is, p- i2 M" _# C1 M8 ~  {
responsible for the early activation of the hypothal-3 s$ u. g) _# r5 T* E. l+ G
amic pituitary gonadal axis.1-3 Thus, greater empha-
9 x7 M# O& Z# bsis has been given to neuroradiologic imaging in
) e" k$ T. x9 v& a5 vboys with precocious puberty. In addition to viril-8 L5 p1 ~! X  e
ization, the clinical hallmark of CPP is the symmet-/ U4 h2 D# T$ K7 k+ d- X( @
rical testicular growth secondary to stimulation by
- b& m+ S8 T7 \# ugonadotropins.1,3' R& O4 q3 z, O* J3 u% i/ i
Gonadotropin-independent peripheral preco-
7 @$ o# M- e" m3 i7 gcious puberty in boys also results from inappropriate
6 X0 p2 B' H( t! {+ M* x: P5 ?androgenic stimulation from either endogenous or, x/ r9 w5 I2 Y/ h" G
exogenous sources, nonpituitary gonadotropin stim-
1 J- j& ^: B- Dulation, and rare activating mutations.3 Virilizing9 G* y  e6 e+ E8 I% d
congenital adrenal hyperplasia producing excessive4 ~1 Z$ m% ~$ }9 ]: ?$ p
adrenal androgens is a common cause of precocious
% I4 g0 C/ e! s% o- apuberty in boys.3,4  H0 Z' ]# O5 ~" F6 g6 T& D
The most common form of congenital adrenal/ D- y$ `- k% C. U
hyperplasia is the 21-hydroxylase enzyme deficiency.
1 V* Y: K9 ]' f- a# BThe 11-β hydroxylase deficiency may also result in
! E6 q1 j% k- X- I) ?3 Cexcessive adrenal androgen production, and rarely," o5 G, e" b4 b% ~2 d
an adrenal tumor may also cause adrenal androgen
! G; @0 A0 ?5 r! \, }excess.1,3
, _7 Y* E- D* q/ o7 g) _4 yat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
8 K6 h! C) y( ~$ S0 M2 P' ?- W  m# Z542 Clinical Pediatrics / Vol. 46, No. 6, July 2007! _1 l" n: ?9 F' L" w! {
A unique entity of male-limited gonadotropin-
9 E: d' G2 M: U5 K7 N$ rindependent precocious puberty, which is also known
7 D/ x$ b9 {( s+ z: D  b) Uas testotoxicosis, may cause precocious puberty at a
0 r! g3 n  n5 X* f4 M$ |0 V8 p2 cvery young age. The physical findings in these boys
  j! A! d# s5 Y+ f' ?9 Bwith this disorder are full pubertal development,5 F( a2 ~5 c) G: M3 D
including bilateral testicular growth, similar to boys
. P9 c5 a( x! H+ m, j* vwith CPP. The gonadotropin levels in this disorder! A0 E& h9 S, y  U$ L, e
are suppressed to prepubertal levels and do not show
% }  O6 A5 T' N  j. V% xpubertal response of gonadotropin after gonadotropin-
8 u9 B1 p1 j; M$ Yreleasing hormone stimulation. This is a sex-linked
) I; ^0 G9 o: c( [$ x* g* oautosomal dominant disorder that affects only/ F$ D/ C1 u/ g. ?, D$ ]
males; therefore, other male members of the family
% ~% L4 \# i# ~% ^8 V: emay have similar precocious puberty.3+ u# l3 f* i7 O. m
In our patient, physical examination was incon-
' N9 Z; Y* S+ D& esistent with true precocious puberty since his testi-: o2 g* p7 m1 h  U( O% O
cles were prepubertal in size. However, testotoxicosis, ]9 L" w" f1 q, g$ J
was in the differential diagnosis because his father3 d; U9 U5 g/ e4 Q$ U
started puberty somewhat early, and occasionally,  u0 m, L/ B2 G7 Q0 P
testicular enlargement is not that evident in the6 P* T+ s( R  n. ^" l& M9 b
beginning of this process.1 In the absence of a neg-
- Y) i. p3 A! ]; g% u4 \ative initial history of androgen exposure, our6 l. L/ M! W3 |( z
biggest concern was virilizing adrenal hyperplasia,; @7 I) `; |6 a5 \' j4 c7 y; J
either 21-hydroxylase deficiency or 11-β hydroxylase# Y9 @: ~6 O( {3 u
deficiency. Those diagnoses were excluded by find-
- F" t& o. K$ @4 ving the normal level of adrenal steroids.& u1 c) ]/ k( `3 _( M0 O
The diagnosis of exogenous androgens was strongly
6 x' k/ P9 A  B: ]suspected in a follow-up visit after 4 months because
# }4 S* ~! T8 h1 {0 C. o0 x9 ?the physical examination revealed the complete disap-
+ S9 T, M( f' npearance of pubic hair, normal growth velocity, and/ Z) Y- I$ x4 r8 [; ?  j6 d7 L: }
decreased erections. The father admitted using a testos-
6 [. J3 n6 o2 `$ Uterone gel, which he concealed at first visit. He was* T2 {# Z( x* l7 _' @; \& t% D. B
using it rather frequently, twice a day. The Physicians’
( [$ v5 d0 C) ODesk Reference, or package insert of this product, gel or
. h5 {4 y$ a: S5 s* }cream, cautions about dermal testosterone transfer to( ?" l" R8 N1 K8 _2 v
unprotected females through direct skin exposure.; Y3 P2 G+ V4 d
Serum testosterone level was found to be 2 times the
( Q+ ]' _3 _2 I9 W" z% mbaseline value in those females who were exposed to
2 t; D6 o" ~7 `# ?) Zeven 15 minutes of direct skin contact with their male
' P. r. r6 P% y8 Apartners.6 However, when a shirt covered the applica-
7 M: d0 E# O, `' Jtion site, this testosterone transfer was prevented.& ]8 h  y) y+ E  s) l" {
Our patient’s testosterone level was 60 ng/mL,. e  }6 ?; t+ C) k0 t% j; \
which was clearly high. Some studies suggest that
# s2 J/ ^' i% y0 e9 ]- J' V/ b# Kdermal conversion of testosterone to dihydrotestos-
" M, v3 |! G6 h: s* E4 t% P0 Vterone, which is a more potent metabolite, is more% ]$ v) i- C0 b. K
active in young children exposed to testosterone$ u' `# C+ |1 ?: F
exogenously7; however, we did not measure a dihy-
% L; f) Z2 @) C& \# N; Jdrotestosterone level in our patient. In addition to9 U7 s0 @1 T/ Q! c
virilization, exposure to exogenous testosterone in& ]) \3 _$ X% m2 k: _. `
children results in an increase in growth velocity and
0 z& U0 s, s# m- W0 Jadvanced bone age, as seen in our patient.
( b" Z9 T1 d5 \The long-term effect of androgen exposure during
' f+ Q4 `$ V8 s( ?4 @3 `early childhood on pubertal development and final7 t2 F0 u$ |6 a3 ?# f! H$ S  p
adult height are not fully known and always remain
, J. m8 V1 I& {9 u3 N6 X( ^% xa concern. Children treated with short-term testos-
; e9 f, ~, E+ q" N$ Cterone injection or topical androgen may exhibit some
. [0 d  |& e% ^/ i! U3 dacceleration of the skeletal maturation; however, after' K* A, \$ F7 G# _3 J
cessation of treatment, the rate of bone maturation4 x+ d, V! p/ W  C) G) {( ^
decelerates and gradually returns to normal.8,94 `* L& _" h3 l9 ]# \1 ]) M
There are conflicting reports and controversy" K$ \; @5 d/ K
over the effect of early androgen exposure on adult# U3 h* M5 ^/ f# a# ?7 _
penile length.10,11 Some reports suggest subnormal% J* [: M! [" @- i
adult penile length, apparently because of downreg-
* j' L6 }7 N7 o* B6 z! [ulation of androgen receptor number.10,12 However,+ n$ L! N' k8 O: O2 E( X& j
Sutherland et al13 did not find a correlation between
- Z, V' T! }. ]- d( B6 w) e, vchildhood testosterone exposure and reduced adult0 b$ N% p) h) o5 l
penile length in clinical studies.
. ~, C. [! M% p6 TNonetheless, we do not believe our patient is9 K' m- v; ~. z# Q3 a
going to experience any of the untoward effects from
" ~; J' Q; h# l& e3 u* Btestosterone exposure as mentioned earlier because
" q( C, Z& P0 ]' @( v7 T7 L+ zthe exposure was not for a prolonged period of time.
( |6 q+ z# W  s3 w& W% VAlthough the bone age was advanced at the time of
+ a, u1 J- ?+ h. l8 M+ b. s) ]diagnosis, the child had a normal growth velocity at
% x2 P1 U! q: |4 e" t- \# ethe follow-up visit. It is hoped that his final adult
  D/ d$ U( |# ?6 [8 n& s$ Xheight will not be affected.
0 d+ L5 ?  a, OAlthough rarely reported, the widespread avail-
$ E1 m6 m# ?% k4 a7 a/ vability of androgen products in our society may
1 Q* Z0 Q& G1 y0 s* ?indeed cause more virilization in male or female
- e8 g$ w2 b! W6 b' T- ^children than one would realize. Exposure to andro-& c$ ~3 d* S: k, F( v" U; A7 j3 o
gen products must be considered and specific ques-4 J/ A1 v/ g9 `1 p
tioning about the use of a testosterone product or  s. s# q) P) W- |! O9 q
gel should be asked of the family members during
; t! g/ \- U% c6 i) Gthe evaluation of any children who present with vir-7 {2 D- J" n0 p9 B# W4 Y  ]
ilization or peripheral precocious puberty. The diag-% M1 c, [: P: L3 q# M& ]- J
nosis can be established by just a few tests and by' r; R# j9 S4 u( ^7 E. B" w/ v
appropriate history. The inability to obtain such a; m) @6 S- V0 N: }' C3 l, k
history, or failure to ask the specific questions, may* N/ U+ t7 j+ t1 E
result in extensive, unnecessary, and expensive
1 q3 b" a8 ^7 `. i' R+ `investigation. The primary care physician should be* h$ ^0 O3 |7 {% h! E
aware of this fact, because most of these children
; Q8 ]# k" M3 T9 mmay initially present in their practice. The Physicians’
$ W0 q' z4 \3 x- F, F$ Z0 hDesk Reference and package insert should also put a0 \) K' m  l) }& S. P
warning about the virilizing effect on a male or4 Y, A. y! q5 [3 \0 A
female child who might come in contact with some-
- t# ]3 Q; Z- `( ^9 a' lone using any of these products.
2 f1 G" f1 |8 {6 r; O; E% ~( LReferences( A1 L; I+ O4 a5 Z
1. Styne DM. The testes: disorder of sexual differentiation
- P2 B1 Y/ G8 u, {and puberty in the male. In: Sperling MA, ed. Pediatric. U$ @0 I0 O+ y8 i( q  Q) F! ^
Endocrinology. 2nd ed. Philadelphia, PA: WB Saunders;/ \! A+ ?: [% f& c
2002: 565-628.
% d, g5 X( q( _' G$ `/ L2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious6 D5 |. T$ I1 ?& u
puberty in children with tumours of the suprasellar pineal
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發表於 2025-1-7 21:59:43 | 顯示全部樓層
這個我收藏了!謝謝分享!WK的資源越來越豐富,這少不了大大的辛勞!

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發表於 2025-1-10 10:43:39 | 顯示全部樓層
VIP精品區,資源無限好賺金任務區,輕松賺金幣
加入VIP,享受高級特權宣傳賺金又升級,超級棒
感謝大大的辛勞分享!我會繼續在WK關注大大的文章!
累計簽到:11 天
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發表於 2025-1-11 22:18:01 | 顯示全部樓層
女厕偷拍辅导班主任尿尿老师的逼很嫩还有一点

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發表於 2025-1-17 16:31:39 | 顯示全部樓層
VIP精品區,資源無限好賺金任務區,輕松賺金幣
加入VIP,享受高級特權宣傳賺金又升級,超級棒
4个什么样的?
累計簽到:3 天
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發表於 2025-1-19 02:41:05 | 顯示全部樓層

( E' A) }* K5 h* G) b/ t8 F精妙絕倫的精品,感謝啊!期待你更多更好的創作哦!

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發表於 4 天前 | 顯示全部樓層
絕對的好貼!謝謝啊!逐字逐圖地看完這個帖子以後,我的心久久不能平靜,感恩啊!
 分享同時學會感恩,一句感謝的話語,就是最大的支持!  歡迎交流討論
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