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Sexual Precocity in a 16-Month-Old% k1 D x9 u: }
Boy Induced by Indirect Topical' m; e! R. i- F9 i, x- c* F/ ~& |
Exposure to Testosterone4 B3 X9 _/ w+ I. v( W/ _8 ^% ~
Samar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,2
7 {; k, E0 T" T+ ^and Kenneth R. Rettig, MD1/ q+ r) I0 R6 E+ p* `1 F7 @* a
Clinical Pediatrics2 v3 c" v2 a! c C# {
Volume 46 Number 6
0 r) Q, x2 M3 z4 P( m3 q( V, MJuly 2007 540-5437 {/ n# n3 h6 B* y
© 2007 Sage Publications5 w/ a0 F( C1 z4 C
10.1177/0009922806296651
8 E; M1 u5 e5 M4 t- K2 a @) ahttp://clp.sagepub.com
, m0 g/ a( z- W( a/ N9 b& o Xhosted at- p0 W4 g' B( o2 ^2 c# A
http://online.sagepub.com; j; e l/ x% E9 F" q a- z
Precocious puberty in boys, central or peripheral,
" D) S/ ^3 n/ k1 m+ bis a significant concern for physicians. Central) z" B& w D, I# Y* Z
precocious puberty (CPP), which is mediated6 m& p& @4 A- f: N
through the hypothalamic pituitary gonadal axis, has3 _0 b7 z3 `3 J9 [" s7 p
a higher incidence of organic central nervous system9 O& u: q A8 }3 Y
lesions in boys.1,2 Virilization in boys, as manifested) b8 \1 j! `- V2 c
by enlargement of the penis, development of pubic
( w. ]% Y6 A, L0 X5 E# |. q$ C6 hhair, and facial acne without enlargement of testi-
2 u" V1 n3 G3 J7 U1 xcles, suggests peripheral or pseudopuberty.1-3 We. S, I2 @. V; h( C0 |* B2 L& u& A
report a 16-month-old boy who presented with the2 R3 M3 R5 a+ i& e, U
enlargement of the phallus and pubic hair develop-
k8 Q! \7 v4 g, j- x5 k4 Qment without testicular enlargement, which was due# I" y& g) E i6 g9 G) U
to the unintentional exposure to androgen gel used by/ ~& y8 R& S- R2 {9 M1 g9 M
the father. The family initially concealed this infor-8 S( Z3 K* l a* Y; f& _ ]. Y
mation, resulting in an extensive work-up for this
& |5 A' M$ ] {) c6 F- fchild. Given the widespread and easy availability of1 G3 Y* w! h+ o# |. F9 K% U
testosterone gel and cream, we believe this is proba-2 x/ e( l i/ r7 G) g( b* I
bly more common than the rare case report in the' E% y$ X5 ~9 M3 M, j8 V
literature.44 C7 H. m/ V* m8 w; A. z
Patient Report* k1 e$ ~( z$ n/ m& ~
A 16-month-old white child was referred to the" p' C3 i# ]3 V% C* l1 g! N$ R
endocrine clinic by his pediatrician with the concern0 w2 j+ X( S" x( g5 }. a
of early sexual development. His mother noticed% S& @/ V& o- V4 v# {6 M
light colored pubic hair development when he was* B4 p4 ?6 v" O- A. l
From the 1Division of Pediatric Endocrinology, 2University of
& D( G Z! z$ b6 c# ~South Alabama Medical Center, Mobile, Alabama.6 r- _: U* |/ w5 \
Address correspondence to: Samar K. Bhowmick, MD, FACE,
0 Q6 v. i K. x* yProfessor of Pediatrics, University of South Alabama, College of3 s M6 U- g; w {6 z2 I
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;. N8 `# B+ l+ n f: K5 |5 T
e-mail: [email protected]. W9 n0 b' d& ?9 T
about 6 to 7 months old, which progressively became
+ \- G x3 a4 b: Sdarker. She was also concerned about the enlarge-9 H8 B/ t# A; c! J, r% }
ment of his penis and frequent erections. The child, I+ X0 {: y/ l4 d$ @& W
was the product of a full-term normal delivery, with- t4 R3 A1 O, E2 Q/ ]' b
a birth weight of 7 lb 14 oz, and birth length of6 B. c2 B2 L) C( {1 y" J
20 inches. He was breast-fed throughout the first year
$ c2 i8 t: `* v7 Z p# Mof life and was still receiving breast milk along with% U0 X2 F. ?( g2 L/ E
solid food. He had no hospitalizations or surgery,
/ b& W" }0 G; X/ R* J$ w0 M/ aand his psychosocial and psychomotor development3 ]% v9 [ H5 M i" a
was age appropriate.5 h' \$ M4 @: y, B z0 a
The family history was remarkable for the father,4 R/ u/ u7 H6 b
who was diagnosed with hypothyroidism at age 16,
$ A& k: W0 x$ X6 Bwhich was treated with thyroxine. The father’s
- E- O3 Z% x, ` Z- |$ \height was 6 feet, and he went through a somewhat
$ b" _5 |, ~- q8 r8 ~4 [/ ~early puberty and had stopped growing by age 14.
& J ^$ p' {$ L8 z' CThe father denied taking any other medication. The
- B2 Q/ O8 m) }" Ichild’s mother was in good health. Her menarche
/ V3 f! s- q2 o0 E" l( W7 lwas at 11 years of age, and her height was at 5 feet# F" @! f) i- \! y" b- ^* b
5 inches. There was no other family history of pre-& \( s, d* _8 t- {# T) x0 \) |
cocious sexual development in the first-degree rela-; ^8 x0 Y* Z, e& c6 ?5 [5 ~5 T# n
tives. There were no siblings.4 a V, w8 p" g* A0 U$ y
Physical Examination1 t1 U2 P! ~6 q( @2 t- Z
The physical examination revealed a very active,
0 F6 l9 K6 c: G# B _. ]; Lplayful, and healthy boy. The vital signs documented8 B) _) H0 |" x% N7 C# F' l
a blood pressure of 85/50 mm Hg, his length was
1 X; y/ [! X3 S3 U% S90 cm (>97th percentile), and his weight was 14.4 kg
8 v9 [3 J+ u/ _- F& F3 r+ c(also >97th percentile). The observed yearly growth3 C( {. ?5 s( ~& q j: r9 [7 j1 R
velocity was 30 cm (12 inches). The examination of- b! j' w {0 N
the neck revealed no thyroid enlargement.
; v1 U- m% W( E1 eThe genitourinary examination was remarkable for: }. U2 U/ t: m" q4 o u" j
enlargement of the penis, with a stretched length of
% s1 r& c/ \& l9 ~3 }( k0 V8 cm and a width of 2 cm. The glans penis was very well
/ X% H8 d6 Y- Y7 d; p% ^# F3 Pdeveloped. The pubic hair was Tanner II, mostly around9 s. u8 s5 F9 o" ~. |4 h
540
' H/ X9 g, d1 L4 |# p1 m0 dat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
: O9 L1 ^& O: L% U4 l, i/ ^the base of the phallus and was dark and curled. The5 Y- h7 X$ f2 h! h, r
testicular volume was prepubertal at 2 mL each.' V. d: f" K7 W" Y9 I
The skin was moist and smooth and somewhat6 F3 v" u2 H# A# x
oily. No axillary hair was noted. There were no
- v$ W) U$ e2 |& babnormal skin pigmentations or café-au-lait spots./ ~8 f. a6 L. z7 D: j% W. V- @
Neurologic evaluation showed deep tendon reflex 2+
2 A4 i0 W- D4 q) [. D: @& Pbilateral and symmetrical. There was no suggestion: K% K, C3 c1 U3 Z- |
of papilledema.
& V$ [, J6 f: M/ O1 c+ p! O7 w' |Laboratory Evaluation
7 V3 r5 B% l( J' a, {. rThe bone age was consistent with 28 months by
1 ^% ?+ P ]" M# K3 }6 X- S- qusing the standard of Greulich and Pyle at a chrono-% P' X1 q9 l- c0 E" d1 `2 F/ D
logic age of 16 months (advanced).5 Chromosomal) J- i+ `1 \* o0 x; E
karyotype was 46XY. The thyroid function test
- k+ d! h, h9 p( d( y7 q( D9 ushowed a free T4 of 1.69 ng/dL, and thyroid stimu-
/ t; y3 z& L. O7 n# Elating hormone level was 1.3 µIU/mL (both normal).
( W/ d3 k! n2 |+ Q0 O( ]0 s7 pThe concentrations of serum electrolytes, blood
5 B4 L$ c/ M% f. C# a$ ~5 Purea nitrogen, creatinine, and calcium all were3 y3 x+ R/ v: o' A& L- _
within normal range for his age. The concentration4 `. e# a: s/ |8 K
of serum 17-hydroxyprogesterone was 16 ng/dL
. E; v- g! U5 X( g& M(normal, 3 to 90 ng/dL), androstenedione was 205 O% U" j* V) h! X# U
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-
& |( I" \, N, `terone was 38 ng/dL (normal, 50 to 760 ng/dL),
# Y5 L* N5 A8 D' J6 j3 N2 vdesoxycorticosterone was 4.3 ng/dL (normal, 7 to0 X$ B" b9 q' |$ D
49ng/dL), 11-desoxycortisol (specific compound S)
, f q5 W3 ^6 P0 uwas 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-: Y) H0 ?5 U ] T [! D& `
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total, W7 \7 O! K4 L3 o9 D
testosterone was 60 ng/dL (normal <3 to 10 ng/dL),% O, N0 n! k1 V7 E$ m" ~8 f
and β-human chorionic gonadotropin was less than
- U6 e5 M% c( u. O' ?( ]1 N7 X5 mIU/mL (normal <5 mIU/mL). Serum follicular
" ~2 T2 l. l N- Z9 g# ]; cstimulating hormone and leuteinizing hormone
3 _9 d( Y9 ~, S* o9 Yconcentrations were less than 0.05 mIU/mL
7 v3 O1 ?2 H N, W/ r7 J(prepubertal).
; n7 A$ a1 @8 V1 A4 YThe parents were notified about the laboratory
! @8 W- ~1 t* O0 k( H+ d, ]results and were informed that all of the tests were
, ]! R! F, o, znormal except the testosterone level was high. The
7 a1 I. l+ r0 D1 D% q7 V. ]$ Wfollow-up visit was arranged within a few weeks to
0 [0 C5 b' r5 U0 v9 }obtain testicular and abdominal sonograms; how-
. U. g6 ~, X8 m9 q) s/ Dever, the family did not return for 4 months.6 l8 }+ M- i& P, Q
Physical examination at this time revealed that the- S P+ U' Z- c
child had grown 2.5 cm in 4 months and had gained! A, P# a+ ^: O
2 kg of weight. Physical examination remained
& X( _- z5 i0 _$ _3 v6 munchanged. Surprisingly, the pubic hair almost com-: r- ?. T9 \) Y; f5 O
pletely disappeared except for a few vellous hairs at
8 }7 J E5 [ g+ F; E9 E3 lthe base of the phallus. Testicular volume was still 20 U. b7 a) p& O0 D s# L6 u
mL, and the size of the penis remained unchanged.
0 g7 p- _0 `5 i9 YThe mother also said that the boy was no longer hav-4 f! P' p+ h" C' D
ing frequent erections.2 P/ {' V2 E" ]+ F% \
Both parents were again questioned about use of
. R; A+ F( R6 ^$ Z7 |6 Sany ointment/creams that they may have applied to3 L1 Q- M' Z3 y( P4 `0 ~
the child’s skin. This time the father admitted the
" s; q; N# D# k `5 A: K/ LTopical Testosterone Exposure / Bhowmick et al 541; @& \8 I, b% m: m! n5 g$ A
use of testosterone gel twice daily that he was apply-8 v/ @/ i$ |* g) [$ H+ Z. e
ing over his own shoulders, chest, and back area for
/ t$ A$ i. M8 I( r- @& za year. The father also revealed he was embarrassed j3 B$ Y( ]% a2 O7 S1 b
to disclose that he was using a testosterone gel pre-
# t; l. D, g M! c% rscribed by his family physician for decreased libido/ T2 X! h! P9 {" f, e7 q
secondary to depression.
+ ?% L/ ~, q' g% s9 v8 [ i! jThe child slept in the same bed with parents.
2 Z7 ]; q* |" Y2 j1 AThe father would hug the baby and hold him on his9 v% X5 J# P* t Y4 T, d" G; l+ `1 K
chest for a considerable period of time, causing sig-
1 Q g4 B4 b8 G3 q* Ynificant bare skin contact between baby and father.$ l9 }. @3 ~! l. ?6 {
The father also admitted that after the phone call,
1 \- M- r7 M& Y! l1 l" l2 \' Pwhen he learned the testosterone level in the baby& f1 G8 x6 q7 Y9 m
was high, he then read the product information* F7 s$ m1 O. i' y5 V |+ P7 m
packet and concluded that it was most likely the rea- V# t2 q p7 L8 G5 ~& y: \
son for the child’s virilization. At that time, they& f7 @7 \; t% u! |! f5 Y5 `" g
decided to put the baby in a separate bed, and the; ?0 p8 j M2 N' u* k% ]
father was not hugging him with bare skin and had6 x) _9 y. p8 f- C
been using protective clothing. A repeat testosterone
8 O3 ?: N$ K3 |, {% @ ztest was ordered, but the family did not go to the% x' l; {9 ?3 q3 g/ l1 @
laboratory to obtain the test.% N( m, R# n; q" u2 `
Discussion
% o1 I0 } f$ bPrecocious puberty in boys is defined as secondary
1 l3 h! t5 x5 P _4 c' `& ~sexual development before 9 years of age.1,41 m B- }$ ~3 W! y
Precocious puberty is termed as central (true) when7 H9 q7 T* m! z$ J6 C: E7 X* ?
it is caused by the premature activation of hypo-% j( D" ` R6 q' S0 J6 D9 |, z
thalamic pituitary gonadal axis. CPP is more com-9 ~& ~: B' o7 h
mon in girls than in boys.1,3 Most boys with CPP
* E U7 `, C# q Gmay have a central nervous system lesion that is
0 R0 B! y0 N% W# b8 n/ N$ g. oresponsible for the early activation of the hypothal-
* d D8 m0 q2 N+ t ~ n2 _$ |amic pituitary gonadal axis.1-3 Thus, greater empha-
$ U9 }& ]9 D% u* hsis has been given to neuroradiologic imaging in
) C4 |1 _* ]# H) l2 a5 h% U6 H& Y- xboys with precocious puberty. In addition to viril-
" I& Q2 c( V" @# Vization, the clinical hallmark of CPP is the symmet-9 c' I1 k w& F8 _) ]
rical testicular growth secondary to stimulation by
! e+ p/ b1 r: mgonadotropins.1,3, d, t" ]( U2 J0 y$ {3 b/ j- ~) [
Gonadotropin-independent peripheral preco-/ _1 g! R4 {' p7 r2 q
cious puberty in boys also results from inappropriate
6 r ^7 S$ u! g4 A7 B) Nandrogenic stimulation from either endogenous or
8 i7 y* d M: i1 N; lexogenous sources, nonpituitary gonadotropin stim-
" l9 Q7 z4 ]$ Y6 Fulation, and rare activating mutations.3 Virilizing. @: k0 t" E1 _& U f5 }
congenital adrenal hyperplasia producing excessive4 P( q O- I0 t _; M
adrenal androgens is a common cause of precocious6 \: G9 g/ C3 D3 W' M* m% E
puberty in boys.3,4
2 X& G8 E$ |1 }0 X" {" q$ `' r) IThe most common form of congenital adrenal
2 A- P& D7 z4 h$ Y; A) jhyperplasia is the 21-hydroxylase enzyme deficiency., W4 a( [2 E4 }& l; N0 s
The 11-β hydroxylase deficiency may also result in8 B; M3 n* r8 K+ |; n5 I
excessive adrenal androgen production, and rarely,. J* I( |9 b: p) K. F$ k
an adrenal tumor may also cause adrenal androgen+ d E. \% N9 S+ P
excess.1,3
# U3 }4 g# S9 n6 L" K, [& pat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from% t- ?, X. V9 k
542 Clinical Pediatrics / Vol. 46, No. 6, July 2007& [8 c' B. k0 w. E* i/ F# s0 M d
A unique entity of male-limited gonadotropin-! b0 P. k4 u7 x F8 I5 R- N
independent precocious puberty, which is also known6 S. W* J9 Q0 p' q8 P! g
as testotoxicosis, may cause precocious puberty at a
# {. H6 K+ |5 a4 ~' T& v% Z7 L8 Q$ Avery young age. The physical findings in these boys3 E) \$ I* P' c: B4 r
with this disorder are full pubertal development,* J c, S0 `: M2 x9 x" r/ Z
including bilateral testicular growth, similar to boys
" w0 n. n4 h0 v; h L7 t4 I" Hwith CPP. The gonadotropin levels in this disorder; ]; J, A5 H6 C& |& W: j
are suppressed to prepubertal levels and do not show* X% B1 S( u7 v+ ]' n
pubertal response of gonadotropin after gonadotropin-3 [% x6 T) Y/ M! ?+ L* F0 \
releasing hormone stimulation. This is a sex-linked
0 e# R: m& N! c. Uautosomal dominant disorder that affects only
( L+ T* n5 d% v- P+ m3 Cmales; therefore, other male members of the family
; q% K, @+ G6 T& _may have similar precocious puberty.30 u$ t/ i: P2 I) `
In our patient, physical examination was incon-
3 d, ?( I- T6 Rsistent with true precocious puberty since his testi-
' \% T% _/ Z7 G+ H1 F0 ycles were prepubertal in size. However, testotoxicosis
" y. c* {3 H% n6 \9 q9 s3 B1 E* Iwas in the differential diagnosis because his father
' y* P) m9 k [' \9 I6 D. Qstarted puberty somewhat early, and occasionally,
1 M l( B+ r: e( r* Utesticular enlargement is not that evident in the
2 q+ c4 I' p C$ qbeginning of this process.1 In the absence of a neg-' {% {1 i. U5 Q% k+ B" Z1 x- A
ative initial history of androgen exposure, our: b0 E. w2 n+ e9 l6 U
biggest concern was virilizing adrenal hyperplasia,' W& k8 K7 d" ~0 g5 V5 W
either 21-hydroxylase deficiency or 11-β hydroxylase
- P0 k$ U5 p1 M5 Z6 `deficiency. Those diagnoses were excluded by find-
% F3 }" u' R) Zing the normal level of adrenal steroids.$ Z% b. w2 c2 N1 M5 {' g
The diagnosis of exogenous androgens was strongly
/ n; v. X7 ], g3 m' } g! p; qsuspected in a follow-up visit after 4 months because
; T% N: E1 S' o6 E$ C1 tthe physical examination revealed the complete disap-
& u- ]3 z B% `0 R7 L8 U- Vpearance of pubic hair, normal growth velocity, and/ O1 v; y2 F$ t& I7 @6 q4 S% P
decreased erections. The father admitted using a testos-) w2 L8 [4 P* r( U* Y
terone gel, which he concealed at first visit. He was
. @" ~+ ?) |* d. Y' Gusing it rather frequently, twice a day. The Physicians’
3 B5 S9 {9 s" y5 X$ uDesk Reference, or package insert of this product, gel or! A. H1 A. Y5 `* {( o" ?$ Z9 T" ~
cream, cautions about dermal testosterone transfer to; h3 k/ m! h. l. [$ E3 m: d
unprotected females through direct skin exposure.
/ X1 V: C- C2 b$ J4 m; uSerum testosterone level was found to be 2 times the! r/ {8 K/ b+ F# S4 Y0 q
baseline value in those females who were exposed to
/ w% O; r* x: I. x$ ^- M) W7 O' Xeven 15 minutes of direct skin contact with their male
* f) F$ A/ p8 g4 y5 U" }partners.6 However, when a shirt covered the applica-
: ?% [+ f8 n% m3 r- j1 D% _tion site, this testosterone transfer was prevented.
/ N7 V, m/ u% F" V0 J) o3 O: ROur patient’s testosterone level was 60 ng/mL,
) |) Q! w+ J8 [which was clearly high. Some studies suggest that
; q) f5 L5 W; ~! Wdermal conversion of testosterone to dihydrotestos-
: M9 T1 [( ]/ I/ E% s' i) Jterone, which is a more potent metabolite, is more
, K& ~& n+ C1 o$ \. Y tactive in young children exposed to testosterone
4 {! v. t ^8 h& q1 M: xexogenously7; however, we did not measure a dihy-
: l+ C* I7 L1 N+ N5 zdrotestosterone level in our patient. In addition to
5 k) ~8 T4 w9 i4 Y. rvirilization, exposure to exogenous testosterone in
0 }2 p0 Q. v0 L* u7 u: Kchildren results in an increase in growth velocity and7 [" ~3 H) S; [, u: T: T- ~
advanced bone age, as seen in our patient.+ `' n0 W2 J# t, s9 X4 I
The long-term effect of androgen exposure during: n5 K" k3 V! N# b+ k& i# D3 Z
early childhood on pubertal development and final! N4 [) n' }; Y9 F7 f+ P
adult height are not fully known and always remain* @: w7 K$ o8 P
a concern. Children treated with short-term testos-8 c' P: E3 U% D( r( v# I% V
terone injection or topical androgen may exhibit some
! |8 H* N; `. Y- N% oacceleration of the skeletal maturation; however, after
$ M$ r0 _8 o2 j* k+ X! hcessation of treatment, the rate of bone maturation6 y$ _( d% ?6 Y. Q
decelerates and gradually returns to normal.8,9
; W6 e/ ]8 @# \# f% i0 z: R' aThere are conflicting reports and controversy
. L8 }. n8 F# @0 ^6 |2 s$ u: k" Cover the effect of early androgen exposure on adult
+ L4 p ~/ S2 epenile length.10,11 Some reports suggest subnormal2 F/ ]- |. Q- I/ d/ [2 M: m5 y
adult penile length, apparently because of downreg-5 K3 k$ I, I6 S/ p4 N
ulation of androgen receptor number.10,12 However,
# e4 H' l' E/ O, c% c0 \' NSutherland et al13 did not find a correlation between2 D1 u% H6 \5 U/ Y* B
childhood testosterone exposure and reduced adult
0 ?9 P0 G7 W# n8 _. I% mpenile length in clinical studies.
& @1 }- b2 w6 |6 S. B" g/ YNonetheless, we do not believe our patient is
% b7 U- }" F! A1 R, q& igoing to experience any of the untoward effects from* a0 V) r. G8 A, l5 p
testosterone exposure as mentioned earlier because
4 J& E/ m2 f+ Z- T6 f% W; \the exposure was not for a prolonged period of time.' Q: W0 f7 K0 J
Although the bone age was advanced at the time of
* v" k) x; ]5 y3 S* G" Adiagnosis, the child had a normal growth velocity at; H C+ u3 U9 j W+ q
the follow-up visit. It is hoped that his final adult
! Z+ R$ _# Y' t! q# ?/ Cheight will not be affected.6 E1 R; p6 o- Y" A/ K! A- V
Although rarely reported, the widespread avail-
1 f! o X. a2 \8 D( r, u G% wability of androgen products in our society may" Q1 m4 g) C8 K+ y! [, `
indeed cause more virilization in male or female
& E+ G" |0 j8 s+ E5 mchildren than one would realize. Exposure to andro-
{. F5 v8 i% @. D1 w' rgen products must be considered and specific ques-
8 @* ?. p& m% R: Gtioning about the use of a testosterone product or/ P7 V5 @& @2 k
gel should be asked of the family members during2 w! y- m% B& i$ j, h
the evaluation of any children who present with vir-
5 a+ ^' U0 q1 F0 w7 y7 oilization or peripheral precocious puberty. The diag-, k1 b- v# a8 j% B) n
nosis can be established by just a few tests and by
& p& P4 X: z) t0 Q1 F2 | X; E% mappropriate history. The inability to obtain such a
5 m$ }9 w! e) v. Whistory, or failure to ask the specific questions, may
$ w# y$ H$ s( c% kresult in extensive, unnecessary, and expensive
9 f4 |# e# }! z$ l& Z$ X! v2 einvestigation. The primary care physician should be' O* r! g2 u a( \* u* M' A4 H
aware of this fact, because most of these children
& [% b: Q- u' p* C- Ymay initially present in their practice. The Physicians’7 L3 W0 x( `0 `% M
Desk Reference and package insert should also put a
9 O& _1 A; H P$ }warning about the virilizing effect on a male or
- g5 Q9 E3 m, gfemale child who might come in contact with some-
, Q: c: M I# c) @- o0 ^: _) E* p1 m$ yone using any of these products.8 I% u s( m# G( h& j# e
References
& q K; S0 [* }1. Styne DM. The testes: disorder of sexual differentiation
2 D6 R6 O; G5 O/ Hand puberty in the male. In: Sperling MA, ed. Pediatric0 _# {' v4 w! G* @5 [
Endocrinology. 2nd ed. Philadelphia, PA: WB Saunders;
5 k3 E8 z, k' |+ v2002: 565-628.
" ^0 e. H& G: A5 `7 A, |9 H2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious
- ]) d& t& J7 z5 mpuberty in children with tumours of the suprasellar pineal |
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