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Sexual Precocity in a 16-Month-Old8 t" y9 t) o6 D2 Z) _# |
Boy Induced by Indirect Topical9 [6 w+ F& K4 q; K: _7 r" p* O
Exposure to Testosterone0 L; P2 n( V! o0 B8 D3 u4 O
Samar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,2
D. K" C, \. y; A. D K. a" j+ Pand Kenneth R. Rettig, MD1. Z# `. ^# a: U& ?5 Y: J
Clinical Pediatrics
: V9 [' h: a' DVolume 46 Number 6; G$ g/ \: T& d% ` P% \6 ~
July 2007 540-543
( Q# H q" V+ z% b* I/ P' Q© 2007 Sage Publications
3 g$ R4 A. } Q1 i10.1177/00099228062966517 o6 @3 Z! Y: G' I
http://clp.sagepub.com" G( ^% W4 P `! ]' s
hosted at; O3 q. X' d* m( S4 T- P
http://online.sagepub.com( Z5 b3 q" ?9 O( X1 i# L7 ^
Precocious puberty in boys, central or peripheral,
% @: D7 ^8 x0 ^) ?3 w! l; Bis a significant concern for physicians. Central
|6 H; w; ]1 w7 }' |/ F0 qprecocious puberty (CPP), which is mediated
- @, q% C5 W7 w, a _4 D2 \# Bthrough the hypothalamic pituitary gonadal axis, has" Y0 O+ l7 O, ^$ T9 p3 O* d
a higher incidence of organic central nervous system
I2 ?! Z' \* r% e# llesions in boys.1,2 Virilization in boys, as manifested0 J2 ]# i+ ~8 d' R
by enlargement of the penis, development of pubic
4 M) w E* ^$ E2 V* ?( ?5 K7 Mhair, and facial acne without enlargement of testi-
, ~! V, H! [3 d& ~% e/ Z. t1 bcles, suggests peripheral or pseudopuberty.1-3 We
# @% \6 ?( D$ Z O3 o. V7 breport a 16-month-old boy who presented with the
& n Y) z( f2 ^! Q( Eenlargement of the phallus and pubic hair develop-
$ \& C/ x! m0 U' w8 Y$ B7 h. Tment without testicular enlargement, which was due0 Y1 {, L w$ s
to the unintentional exposure to androgen gel used by
: g8 S1 t, |8 Q4 ythe father. The family initially concealed this infor-
( T7 n; e5 M; |: \ r+ j4 E; nmation, resulting in an extensive work-up for this# y1 D6 O: B E
child. Given the widespread and easy availability of
7 E9 G9 x5 ]- m3 Atestosterone gel and cream, we believe this is proba-& E5 a' E0 Z: v
bly more common than the rare case report in the( P; w3 y* ^9 v5 k
literature.48 w5 m2 H2 T7 q' }+ m4 f
Patient Report/ g( }% [" H6 H( e" }& L
A 16-month-old white child was referred to the! w' p, |4 a8 X% g" b! y
endocrine clinic by his pediatrician with the concern8 u0 e" d3 ~: B/ D5 f, v$ X
of early sexual development. His mother noticed7 Q0 \% ?5 J6 _" d
light colored pubic hair development when he was+ A" n0 k; V" q4 T J
From the 1Division of Pediatric Endocrinology, 2University of
% \0 W% N- p/ {; FSouth Alabama Medical Center, Mobile, Alabama.
$ ^9 U* s/ b+ D) ]5 g! }Address correspondence to: Samar K. Bhowmick, MD, FACE,; i& E3 x% C+ @
Professor of Pediatrics, University of South Alabama, College of, x' u& A8 s' b' X1 J8 \
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;* U% t$ d" R; J) i
e-mail: [email protected].8 c$ q3 H1 A4 |- z
about 6 to 7 months old, which progressively became$ J& T& L, \& h$ ? h3 ~# Y! g# ?
darker. She was also concerned about the enlarge-+ G% f$ `, P3 R. [9 @2 s
ment of his penis and frequent erections. The child
, C+ r! e" P; B; [was the product of a full-term normal delivery, with
4 E& @ c& m; Y2 Z1 y, B8 ]a birth weight of 7 lb 14 oz, and birth length of
2 R6 T' ]$ Y; h6 |- A1 k% L7 w20 inches. He was breast-fed throughout the first year: E3 n, D" w# [0 L% k) t9 I
of life and was still receiving breast milk along with
5 w& {8 h7 t% H% r; M1 f/ dsolid food. He had no hospitalizations or surgery,0 G, \7 D' y6 {, G, }3 V5 M
and his psychosocial and psychomotor development
7 C' P1 `( t/ ^9 Dwas age appropriate.
* s( G7 t; a0 ?9 Y, |The family history was remarkable for the father,
+ B9 L: ^3 J" }0 n1 X' x7 P9 Vwho was diagnosed with hypothyroidism at age 16,
2 o' T! d5 V8 K% z) t* d0 Kwhich was treated with thyroxine. The father’s. e/ J+ S$ ?) h' j( x
height was 6 feet, and he went through a somewhat
+ ~0 O$ {* L3 b$ m( H l- w/ Bearly puberty and had stopped growing by age 14.7 i4 p8 d; V2 R7 {4 P U
The father denied taking any other medication. The
. H. x. H; P/ A& P; ~* Mchild’s mother was in good health. Her menarche
$ p; U' r8 f- n, r' Ewas at 11 years of age, and her height was at 5 feet$ Z% M4 B/ w" D7 V
5 inches. There was no other family history of pre-; k2 ~' S; q* a0 J. L5 C
cocious sexual development in the first-degree rela-
[0 K; @" Y* p8 _4 r, k+ ?tives. There were no siblings.0 O; p* ?1 I. I+ ?/ N
Physical Examination8 q: T d4 L% g' d$ W, x, T
The physical examination revealed a very active,8 g) l6 h% z0 O3 M& J0 @
playful, and healthy boy. The vital signs documented
# S- X; S) a) a$ e) Ja blood pressure of 85/50 mm Hg, his length was
4 R6 ]( d! d$ Q# D6 _90 cm (>97th percentile), and his weight was 14.4 kg
( b/ S' p2 ~' [( N1 ~(also >97th percentile). The observed yearly growth
0 S4 e& g, j' r4 o$ n$ e% Fvelocity was 30 cm (12 inches). The examination of
5 q: h* G- c3 g3 {! t! A3 ~the neck revealed no thyroid enlargement.
* v8 f8 p5 _% ?- h9 `' JThe genitourinary examination was remarkable for
4 t& C& a6 D K W% M" F0 `* l9 d4 Uenlargement of the penis, with a stretched length of
- i1 G6 V- F! r* z% ]8 cm and a width of 2 cm. The glans penis was very well- w5 X% O$ `9 X' S" @# V8 y
developed. The pubic hair was Tanner II, mostly around
% C" f9 e" x2 L) F" S540
6 E$ E, H7 I* `9 @% o! p Eat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from; k2 i: _7 |9 W+ p; Z5 \1 z9 W% R( d% {
the base of the phallus and was dark and curled. The- U4 F# C$ R7 {
testicular volume was prepubertal at 2 mL each.
+ h& |# g/ t9 X0 Q# A0 z& oThe skin was moist and smooth and somewhat$ J3 D% M K0 {# s0 i+ C2 K
oily. No axillary hair was noted. There were no# _# F* K& k' Z, a3 @2 {
abnormal skin pigmentations or café-au-lait spots.3 y2 m. [/ w9 J: d, J( D
Neurologic evaluation showed deep tendon reflex 2+3 n7 W, x+ ]; b! X$ c) ~! ]& K
bilateral and symmetrical. There was no suggestion
! `" A4 Y$ S9 ~3 ?( w/ M4 vof papilledema. [( ^/ ]9 f/ c- C% q
Laboratory Evaluation
; W9 P& C% V, c7 }: I4 E# m& SThe bone age was consistent with 28 months by8 C7 I+ G" |6 l, v3 [$ q5 U9 a4 Q% M
using the standard of Greulich and Pyle at a chrono-; o! e& L, @& o
logic age of 16 months (advanced).5 Chromosomal9 e/ g. J- x& V$ L; Z L+ \; l( g
karyotype was 46XY. The thyroid function test/ B8 S: n* A' l" C
showed a free T4 of 1.69 ng/dL, and thyroid stimu-! M2 O/ p8 p/ p& ^
lating hormone level was 1.3 µIU/mL (both normal).
4 I# u. Q {8 S/ k- FThe concentrations of serum electrolytes, blood( ~* ]# X4 s* Q- H6 Q1 H9 v4 u
urea nitrogen, creatinine, and calcium all were: K8 I1 J) t( D$ r4 g! e; Y
within normal range for his age. The concentration
6 W" l- w5 }+ L* H& |8 ^( V0 Pof serum 17-hydroxyprogesterone was 16 ng/dL
( e2 j6 _4 A, |; ^9 T(normal, 3 to 90 ng/dL), androstenedione was 20+ K2 \& v2 H4 ]: W
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-, V% a( y5 l4 ?
terone was 38 ng/dL (normal, 50 to 760 ng/dL),
4 I; @( [3 g- A+ a6 X; I& ~1 z/ W. jdesoxycorticosterone was 4.3 ng/dL (normal, 7 to; H: A3 P: C7 G: j
49ng/dL), 11-desoxycortisol (specific compound S)6 m9 `; P: d* z- v: q
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-
/ K* q# N* H$ z! `( Y3 Y3 |; \( e( Y, Utisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total& ]% b8 \/ u5 s
testosterone was 60 ng/dL (normal <3 to 10 ng/dL),
! l2 u! k% P9 V8 Wand β-human chorionic gonadotropin was less than+ C* u( ?/ ^+ A0 F& ~! i
5 mIU/mL (normal <5 mIU/mL). Serum follicular4 A% X& ?% F# u! Y2 B% t! T# J3 z- |
stimulating hormone and leuteinizing hormone( R7 j1 `# N* R1 b3 w) U
concentrations were less than 0.05 mIU/mL2 F. R& a& b0 E' K
(prepubertal).- y: X( |8 w% I0 U- l
The parents were notified about the laboratory
. q' H# Q+ H! y. Rresults and were informed that all of the tests were* E. K/ ^* N4 i5 d4 I/ B2 k
normal except the testosterone level was high. The
( _- W. C- q% W* D! T, vfollow-up visit was arranged within a few weeks to% d4 c: z' P/ ]& h3 u. j5 l
obtain testicular and abdominal sonograms; how-
( T! n+ X+ e& U$ uever, the family did not return for 4 months.- h0 J+ P9 o; Z! R+ f
Physical examination at this time revealed that the
9 M/ M4 Q- |5 ochild had grown 2.5 cm in 4 months and had gained- K9 |; W% h+ L( \ ^8 O! S
2 kg of weight. Physical examination remained$ m/ @/ b) M1 D
unchanged. Surprisingly, the pubic hair almost com-
1 B% o5 {" ^5 tpletely disappeared except for a few vellous hairs at2 Y* s+ |/ z" }, p' ^% Q
the base of the phallus. Testicular volume was still 2) X( i1 C/ O9 h
mL, and the size of the penis remained unchanged.% F( D3 D5 e: _$ x! v8 ^' M9 @
The mother also said that the boy was no longer hav-
4 q$ U* v( E0 \, w4 ?8 ~+ xing frequent erections.3 @; Y! W8 O% ^
Both parents were again questioned about use of4 Z" Z( m. \1 B2 b# f. L- ]1 N
any ointment/creams that they may have applied to
/ p1 R) o* U8 ^7 z6 H% uthe child’s skin. This time the father admitted the
; |! h# n+ W( u7 _Topical Testosterone Exposure / Bhowmick et al 541
5 ~( Y; [' A3 q2 H" f, Z9 S8 O0 \use of testosterone gel twice daily that he was apply-
1 t% j1 c& `' J/ zing over his own shoulders, chest, and back area for! \- G2 ]% E; l
a year. The father also revealed he was embarrassed; C) C% X" M. a+ e
to disclose that he was using a testosterone gel pre-- G5 C2 i! `5 z' u/ `9 p
scribed by his family physician for decreased libido% X4 |/ B5 V6 _% M
secondary to depression.
7 `# C( c( S. q5 `The child slept in the same bed with parents.% v2 B4 n+ m1 _$ U
The father would hug the baby and hold him on his7 X- }. g' D9 m
chest for a considerable period of time, causing sig-
" s" a" v- t; z) d: cnificant bare skin contact between baby and father.7 U! f; d( u% i. I
The father also admitted that after the phone call,5 {! P+ F9 A! h
when he learned the testosterone level in the baby
% e$ R- N6 Z6 C0 Z, zwas high, he then read the product information
* t1 V' x. a( d8 B, kpacket and concluded that it was most likely the rea-
$ C4 g+ F: z8 n4 W0 kson for the child’s virilization. At that time, they* r0 G. E& l, N2 X
decided to put the baby in a separate bed, and the
9 k9 G G) w% xfather was not hugging him with bare skin and had
" E f: O% n9 n" gbeen using protective clothing. A repeat testosterone
* f, u1 `6 L! V5 W* }# V/ }5 ^test was ordered, but the family did not go to the
( ^! r6 t6 l( [& blaboratory to obtain the test.
9 R! F r* \/ ~. B2 c( gDiscussion8 A2 S' @, o, p& [
Precocious puberty in boys is defined as secondary- }, N8 d8 i4 `+ C: x
sexual development before 9 years of age.1,4
7 g9 Z+ `0 ~/ W& X. {Precocious puberty is termed as central (true) when$ u9 M2 b; y* \' ?
it is caused by the premature activation of hypo-4 P- K2 X2 n: |$ h/ R+ v
thalamic pituitary gonadal axis. CPP is more com-
0 |, C0 ?" J& b9 Xmon in girls than in boys.1,3 Most boys with CPP3 e7 q Z2 G) v
may have a central nervous system lesion that is
: `1 l. N0 Q7 C: h! U) `, Y5 v yresponsible for the early activation of the hypothal-
6 T4 y4 @3 o8 J' z( `) Lamic pituitary gonadal axis.1-3 Thus, greater empha-
2 Y5 P; ]2 q, N* X6 w5 ksis has been given to neuroradiologic imaging in
2 m5 ]( i4 o( H; W' G5 Tboys with precocious puberty. In addition to viril-( q \/ ~6 _5 I2 e! Y! D
ization, the clinical hallmark of CPP is the symmet-
4 K: N8 S/ M6 R# t; o zrical testicular growth secondary to stimulation by' o+ v$ n. @) W' ^. \
gonadotropins.1,39 H# R' B0 c+ |
Gonadotropin-independent peripheral preco-' F! Y( B; M7 |4 j k( n$ w5 Q
cious puberty in boys also results from inappropriate$ j$ v6 C' d! e1 s3 \+ M
androgenic stimulation from either endogenous or
. j* k) `& |! ?2 A* b: w6 Pexogenous sources, nonpituitary gonadotropin stim-
7 [9 e1 F: k& l" Z$ P9 z( E; N% Aulation, and rare activating mutations.3 Virilizing
% e$ |2 X. U# T. c' |1 Econgenital adrenal hyperplasia producing excessive; k) q. v8 J$ x& v7 [7 {' m
adrenal androgens is a common cause of precocious, Z, F7 ]& @, R: {* H `
puberty in boys.3,4
d% S1 p8 }! W; ~3 K3 A4 X1 C* ]The most common form of congenital adrenal$ l& o# P9 D* V v4 g
hyperplasia is the 21-hydroxylase enzyme deficiency.
+ I) O4 \/ {4 h3 k. u/ UThe 11-β hydroxylase deficiency may also result in5 Q9 g7 B% c# h9 ?' v6 g
excessive adrenal androgen production, and rarely,
$ `+ u& m+ M4 B) uan adrenal tumor may also cause adrenal androgen; G4 i7 e: D1 ]/ [4 I
excess.1,3
1 V3 l" W4 b2 ~' I' N6 c K5 rat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
+ O% d1 Z# l4 e5 k/ t: y/ v! y542 Clinical Pediatrics / Vol. 46, No. 6, July 2007
$ [, J/ d t7 x# J$ sA unique entity of male-limited gonadotropin-
! u( D- H' D5 B4 E1 Z$ \independent precocious puberty, which is also known4 l1 I: K* N* _- Z
as testotoxicosis, may cause precocious puberty at a
/ F+ j9 X E5 }8 {( O% Zvery young age. The physical findings in these boys
& d' K9 J& R# o2 T6 ]" C; Pwith this disorder are full pubertal development,0 T0 A' c& u/ v8 D2 y; X3 Z
including bilateral testicular growth, similar to boys
, `5 f. D$ f! t7 vwith CPP. The gonadotropin levels in this disorder
/ U) h$ K9 L& E9 n5 @, m4 D/ O. j* ^are suppressed to prepubertal levels and do not show* f) Q* s' V7 W W0 E& T! i
pubertal response of gonadotropin after gonadotropin-: Y' Q2 T4 n; t, C$ ~1 s
releasing hormone stimulation. This is a sex-linked. K6 F* r! A* C/ Q" l( E) [
autosomal dominant disorder that affects only; }+ }3 w1 T$ G8 L3 ?# I; M1 N, y
males; therefore, other male members of the family
3 b7 Q* y2 ?: [8 xmay have similar precocious puberty.3
8 O- Q: t, f# }& d- v6 ~! i7 L, TIn our patient, physical examination was incon-
) C3 J E6 z( Isistent with true precocious puberty since his testi-( Y- k9 s+ Y w
cles were prepubertal in size. However, testotoxicosis
& H8 |1 j8 x: Wwas in the differential diagnosis because his father( ]2 h8 Y/ O, W! ~) ~' b8 T$ |0 m
started puberty somewhat early, and occasionally,. K: A2 X* }3 ]3 | |* z; d: ]
testicular enlargement is not that evident in the
0 A2 [ G& |0 H( nbeginning of this process.1 In the absence of a neg-
( u0 k, P; j; o! r8 X7 native initial history of androgen exposure, our
+ Y4 @: J, `( `! [biggest concern was virilizing adrenal hyperplasia,+ i8 i& U- S# }2 Z: c! d
either 21-hydroxylase deficiency or 11-β hydroxylase: B9 B' }! e$ o+ w6 g
deficiency. Those diagnoses were excluded by find-6 q$ ~0 k( F, I
ing the normal level of adrenal steroids.( w6 E% i' N9 L0 ^' N
The diagnosis of exogenous androgens was strongly) I: L$ n- c" i9 ~( {
suspected in a follow-up visit after 4 months because ]( J' _) R; T8 _1 d) o
the physical examination revealed the complete disap-
$ o$ Y# O# P5 b( Y* o9 J1 t( Z2 k8 hpearance of pubic hair, normal growth velocity, and
+ \) `! ^4 O! ~8 V6 wdecreased erections. The father admitted using a testos-
1 C- U9 v# l; R) C: Qterone gel, which he concealed at first visit. He was
: E+ s/ Q& o" v m. r, Fusing it rather frequently, twice a day. The Physicians’
& j, ~- @, F- Q7 C- Q$ W8 dDesk Reference, or package insert of this product, gel or
$ E. A/ O0 o' I$ C7 K. L% Y/ ^cream, cautions about dermal testosterone transfer to
5 [3 i; g* \* |+ Tunprotected females through direct skin exposure.
; Z' w/ t! G+ }& d# HSerum testosterone level was found to be 2 times the
! w/ _6 R" t2 y( W$ E0 Ubaseline value in those females who were exposed to7 Y; h# q. t' S
even 15 minutes of direct skin contact with their male& |- ~; Z9 o8 }; C/ w
partners.6 However, when a shirt covered the applica-' |& b9 G( r* v) u: o. J
tion site, this testosterone transfer was prevented.
1 j8 T' D0 P+ S1 P( P% ?Our patient’s testosterone level was 60 ng/mL,
/ N" t. B0 c1 x7 uwhich was clearly high. Some studies suggest that6 M9 m. x! a/ `) B1 P
dermal conversion of testosterone to dihydrotestos-) B& W/ ]5 S6 ]6 h7 d
terone, which is a more potent metabolite, is more% e" p' \9 x5 _+ c6 ]
active in young children exposed to testosterone
+ O1 k( p- M v) Q1 aexogenously7; however, we did not measure a dihy-
2 y. z* B1 k) E/ H) w/ f- bdrotestosterone level in our patient. In addition to# H8 ^, T4 n# {8 X- b' G8 O/ d1 Y: i
virilization, exposure to exogenous testosterone in$ F/ w, A7 ^& F
children results in an increase in growth velocity and
5 T0 @! F. J* [- U) o/ Wadvanced bone age, as seen in our patient.
2 y [% Y, m# z2 s Z3 fThe long-term effect of androgen exposure during5 P( ~: X+ C$ w) Z( a: r1 Y
early childhood on pubertal development and final: w) L$ i+ t1 z" z8 c
adult height are not fully known and always remain% u. S, h0 q/ n& `% _: N) ?
a concern. Children treated with short-term testos-
4 o. |+ n3 b' |: l, _6 c% Uterone injection or topical androgen may exhibit some
6 q; T4 t; p( ^ W, |acceleration of the skeletal maturation; however, after6 w/ p. h: s; S" J: D I' Z( ]
cessation of treatment, the rate of bone maturation
* q. o9 Q8 K% }1 ^! b) f" r8 Y: ldecelerates and gradually returns to normal.8,9; y# f2 r* r G. \2 G) y- U
There are conflicting reports and controversy m3 `8 ^1 S/ u" }: l/ I
over the effect of early androgen exposure on adult" k! R o5 t: y1 H( H, b" L
penile length.10,11 Some reports suggest subnormal
% S* v+ q4 M9 W2 j" kadult penile length, apparently because of downreg-
" J/ Z# ?$ y2 [0 N. Aulation of androgen receptor number.10,12 However,) m E# D7 `6 |% ?4 `- N
Sutherland et al13 did not find a correlation between
& C* o% [7 X; F; G; cchildhood testosterone exposure and reduced adult
7 w( Y1 \% ^) k: K- @/ R& a& Fpenile length in clinical studies.
$ t3 K$ l' m0 X+ G1 f% j8 n0 _Nonetheless, we do not believe our patient is# ^; H; u% O, G
going to experience any of the untoward effects from( z4 y" q0 U, t# T: F
testosterone exposure as mentioned earlier because$ ^ @+ ~# L# P R
the exposure was not for a prolonged period of time.
4 M! M1 E0 e6 D9 k' K; Q4 E1 q& |Although the bone age was advanced at the time of' q% g$ B/ f0 G' E+ j0 z! M
diagnosis, the child had a normal growth velocity at
/ n ~6 ?2 J l1 R2 Q! }# athe follow-up visit. It is hoped that his final adult8 A" Q7 G: q: B9 N. A. T
height will not be affected.
* N+ P" D4 A, u) v+ \! xAlthough rarely reported, the widespread avail-
8 M5 z1 r2 I8 ]6 \+ dability of androgen products in our society may
2 E2 T4 M- U0 s W, m% I9 b; Y9 Zindeed cause more virilization in male or female
0 i0 H! H. o" z- K% w8 `; ichildren than one would realize. Exposure to andro-
% S! O- \8 d {- k: w6 m; Xgen products must be considered and specific ques-
) e8 t& q! M9 @2 Gtioning about the use of a testosterone product or* o X; y+ f2 s) a5 q ^
gel should be asked of the family members during
. p, z- G& x8 T4 X( |3 gthe evaluation of any children who present with vir-1 f/ q1 C% J, E6 A! @
ilization or peripheral precocious puberty. The diag-
4 t$ O0 k: _2 B3 o/ Z$ @$ \' Anosis can be established by just a few tests and by1 A& n0 @* _; n0 F# o0 k5 q4 `
appropriate history. The inability to obtain such a
/ H1 x3 ]* Y4 fhistory, or failure to ask the specific questions, may* @: H: N4 J" V% `; G& P5 V
result in extensive, unnecessary, and expensive
! S1 E5 {% c0 H; Z0 V3 Jinvestigation. The primary care physician should be1 h5 K7 g0 s- j
aware of this fact, because most of these children
4 Z3 P- B. W$ s7 Q: F' H* Fmay initially present in their practice. The Physicians’
2 @+ [( m/ l+ D# H" |5 f+ YDesk Reference and package insert should also put a
1 e1 m) i9 M, w- \# \* o Fwarning about the virilizing effect on a male or) ~. q, U9 T6 o3 Z- I
female child who might come in contact with some-4 t4 g2 w) O+ v' L3 g
one using any of these products.
/ e$ E7 e$ o; F! Q! v7 O( b4 q2 i8 KReferences* G" j* {: b0 E; q
1. Styne DM. The testes: disorder of sexual differentiation& L% H' s9 W, t+ \; a: n0 X" B% o
and puberty in the male. In: Sperling MA, ed. Pediatric
7 f1 Z4 @9 ?5 V8 s' qEndocrinology. 2nd ed. Philadelphia, PA: WB Saunders;- u" w& [* f# _% u9 O
2002: 565-628.
7 |' u, n6 @' H8 r2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious* |- {' ~( H: F% x) _
puberty in children with tumours of the suprasellar pineal |
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