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Sexual Precocity in a 16-Month-Old: ^% G" h$ G" R$ L( ^5 ]! N
Boy Induced by Indirect Topical
: y" B$ ~' a# J% EExposure to Testosterone. J0 t- t' ]5 C) l! e
Samar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,2
x+ E# @# a! h# i8 `8 tand Kenneth R. Rettig, MD1. {8 V/ N4 \3 Q# l! Z! P; ~6 k- c
Clinical Pediatrics
: _! w+ k1 i: Q2 @0 m: u' FVolume 46 Number 6
B/ n& C5 }' Z8 b, H5 `July 2007 540-543
- H1 ]! }, J9 f1 M9 v/ B© 2007 Sage Publications5 Y: U. u7 |6 f+ c4 n3 p# O( R
10.1177/0009922806296651
* O, `$ J, D& |6 N# \. f, C" Shttp://clp.sagepub.com
5 O/ C+ Z$ H& J8 P2 ahosted at
# p' t y, t" {http://online.sagepub.com
% t, s7 E" }0 f8 b" gPrecocious puberty in boys, central or peripheral,
) [# w9 `3 c9 A4 E6 J* B& Bis a significant concern for physicians. Central' R/ j, x' R/ Z [% z& h
precocious puberty (CPP), which is mediated$ v; N2 n# t) L$ g9 h+ p9 W0 t
through the hypothalamic pituitary gonadal axis, has
" c" v; T. G9 K8 [; v) pa higher incidence of organic central nervous system/ G0 H# X& t2 J6 E
lesions in boys.1,2 Virilization in boys, as manifested
* ?% D; b7 r- @- n6 rby enlargement of the penis, development of pubic
6 U5 ^4 D( ^7 h1 W- n; v- x6 `hair, and facial acne without enlargement of testi-
8 ^+ R6 m# @* c9 S0 acles, suggests peripheral or pseudopuberty.1-3 We' ^- z* I7 K4 D1 r. w9 o
report a 16-month-old boy who presented with the
0 m8 C1 A& K9 `, `: Henlargement of the phallus and pubic hair develop-
; P3 o, P& {2 Rment without testicular enlargement, which was due. _$ x0 A" W0 o: C
to the unintentional exposure to androgen gel used by+ N5 L( M% l. P" q
the father. The family initially concealed this infor-
7 E. `; z7 V8 Hmation, resulting in an extensive work-up for this& A9 x: J/ _: C Z% Q w
child. Given the widespread and easy availability of
/ G- A5 p5 \+ Y- E8 i- mtestosterone gel and cream, we believe this is proba-
& ?( s& k' ~. t/ ?+ A/ X3 Qbly more common than the rare case report in the$ b& C4 O& r5 ? y9 D+ U7 h' g( R
literature.4
# d9 a% R4 l: S) H& [/ P& SPatient Report% m5 T4 H+ @4 b
A 16-month-old white child was referred to the2 G% ]' q4 D$ T% d, | {6 a( D) ^
endocrine clinic by his pediatrician with the concern0 m7 e- [: e2 d+ A& g+ h
of early sexual development. His mother noticed
$ g% J4 Q2 T' Z! W/ Rlight colored pubic hair development when he was
2 Z" s8 X' a! JFrom the 1Division of Pediatric Endocrinology, 2University of
" v$ X6 P* @: K7 cSouth Alabama Medical Center, Mobile, Alabama.
# [; y t- D! G& i9 R( F$ m. ^8 vAddress correspondence to: Samar K. Bhowmick, MD, FACE,5 Q7 `% D( c( H% j. H- p6 p# U
Professor of Pediatrics, University of South Alabama, College of* O w: E3 ~+ V* \
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;0 t6 U& J0 |; s2 ?. F2 D+ \ M& W
e-mail: [email protected].
a7 U8 L* g- f+ O7 F# _6 U( Sabout 6 to 7 months old, which progressively became
) j+ A2 t i3 F. v' S: Q1 {2 odarker. She was also concerned about the enlarge-
, C4 t. x6 u" w* H2 b+ M6 ement of his penis and frequent erections. The child0 C/ l1 i) O' E( v2 x
was the product of a full-term normal delivery, with V* V# n% N/ E N" t' ]6 T- i( ^- w8 g
a birth weight of 7 lb 14 oz, and birth length of
; y; T! l7 \4 a5 n20 inches. He was breast-fed throughout the first year
# q* J$ I8 @" k3 wof life and was still receiving breast milk along with
" t# f. _0 u! y( R2 W1 U Osolid food. He had no hospitalizations or surgery,2 d' Z) B1 I5 l Z+ e
and his psychosocial and psychomotor development; [! R% P2 P! W+ O
was age appropriate.3 z' ~6 R7 C4 K8 a: Q. C: Q j$ a
The family history was remarkable for the father,
6 v |6 t3 Y V% p! F k$ K* ~% Mwho was diagnosed with hypothyroidism at age 16,
# ?2 s" M1 h1 I% w5 l! j- f. bwhich was treated with thyroxine. The father’s
" ]2 ^# J! u0 q3 j- C9 Nheight was 6 feet, and he went through a somewhat$ f. ^$ F" L. A, {( p
early puberty and had stopped growing by age 14.
; J3 e* _0 F7 ~8 h7 q' J" OThe father denied taking any other medication. The$ a* j9 F; X, U6 Y! P
child’s mother was in good health. Her menarche
& r7 p! l ~' C |7 H4 Gwas at 11 years of age, and her height was at 5 feet
0 h3 A+ a1 B/ }: C4 X- B/ q5 inches. There was no other family history of pre-
! D( b& X @0 ococious sexual development in the first-degree rela-- T3 R2 o* }4 }8 e3 I9 ^, [& D
tives. There were no siblings.1 B9 E |! p/ W9 Q
Physical Examination
2 o4 k3 S. _$ YThe physical examination revealed a very active,: m7 D3 s1 T# X
playful, and healthy boy. The vital signs documented
$ J1 m6 D5 b% }+ Ga blood pressure of 85/50 mm Hg, his length was
) G/ Z9 N1 R4 C# p& B! G90 cm (>97th percentile), and his weight was 14.4 kg" _+ l& C( R( I9 f
(also >97th percentile). The observed yearly growth
' [ u8 z# \! S: u hvelocity was 30 cm (12 inches). The examination of
( J" q6 f$ L0 Qthe neck revealed no thyroid enlargement.& ]1 q* A5 G/ y d1 P% }4 ?" \2 a- G
The genitourinary examination was remarkable for
* _! L2 `$ }1 C: `) Lenlargement of the penis, with a stretched length of( q6 z2 R5 y O8 k7 t( G
8 cm and a width of 2 cm. The glans penis was very well
- n* Q+ s% e6 v; ]developed. The pubic hair was Tanner II, mostly around
* J6 m2 l: ?: i9 _540
/ F1 Q' _9 g0 s3 Q0 @" k. Dat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
0 M( c5 C- O0 }! U3 v* Qthe base of the phallus and was dark and curled. The0 C8 B& A( j2 l8 }# E8 I
testicular volume was prepubertal at 2 mL each.2 t; j0 K6 w6 W' j4 g
The skin was moist and smooth and somewhat
5 j! i( L! P+ Y/ `. Qoily. No axillary hair was noted. There were no9 Y$ w# W; r0 c9 e+ }
abnormal skin pigmentations or café-au-lait spots.
5 e$ ?- ]: z4 E$ _5 w: E- A1 cNeurologic evaluation showed deep tendon reflex 2+/ D1 ?* ?6 n, a
bilateral and symmetrical. There was no suggestion
' U1 e& T. E, |# p$ q* pof papilledema. J+ u- v, T6 K
Laboratory Evaluation
+ Q, k3 I8 f& i# B3 u) G+ q% z: P3 LThe bone age was consistent with 28 months by
. X) [# @9 y w9 i2 {using the standard of Greulich and Pyle at a chrono-
) u- `& W, z, d7 ?logic age of 16 months (advanced).5 Chromosomal" o7 P) L0 s) Z z) Q
karyotype was 46XY. The thyroid function test
4 `" S4 I! w" T) z9 b; l' zshowed a free T4 of 1.69 ng/dL, and thyroid stimu-
* m" ~7 E {" i mlating hormone level was 1.3 µIU/mL (both normal).
* @- E4 D7 w& s2 ] |The concentrations of serum electrolytes, blood# @- R z! I6 x- [( s: `8 O4 X
urea nitrogen, creatinine, and calcium all were
- q6 Z" k m4 i: V: R4 J9 xwithin normal range for his age. The concentration4 _* C- O5 u( Q3 \, }/ ~0 s) l
of serum 17-hydroxyprogesterone was 16 ng/dL. T! b! ], S! _9 ]% D( ~+ O. I9 J& f
(normal, 3 to 90 ng/dL), androstenedione was 20/ G H! _9 j; A X/ Q) o
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-
- k) ~6 d8 d$ ^0 b% e; L# }terone was 38 ng/dL (normal, 50 to 760 ng/dL),
; s8 l6 p L R4 y% idesoxycorticosterone was 4.3 ng/dL (normal, 7 to
/ J5 O$ f. e/ @3 q: i X49ng/dL), 11-desoxycortisol (specific compound S)
- G1 l7 P1 }7 x2 G; Gwas 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-. Z+ r& j, O% \! l: e
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total( Z7 A3 s' R% X1 A2 K6 v8 g
testosterone was 60 ng/dL (normal <3 to 10 ng/dL),& V7 H4 R9 `- S, A& c4 _* e
and β-human chorionic gonadotropin was less than1 w; y; g4 ^, N: q1 v
5 mIU/mL (normal <5 mIU/mL). Serum follicular
7 o- A; ~+ W: K9 B a) l' V% ostimulating hormone and leuteinizing hormone9 B: v$ z" @! z9 X/ _
concentrations were less than 0.05 mIU/mL
( Y2 K' h7 x( _7 y. J7 i(prepubertal). x% V C5 n) c1 @, n* r/ G
The parents were notified about the laboratory
2 J9 z+ K& t; [1 } t: gresults and were informed that all of the tests were$ n( t1 N6 G) b$ i0 M/ ^& K- R- \. e
normal except the testosterone level was high. The
3 z1 @( b% Q X# y5 xfollow-up visit was arranged within a few weeks to ~5 k! L2 j/ ]* |+ ?
obtain testicular and abdominal sonograms; how-! A: Y* Y* U, X: e, S N& [
ever, the family did not return for 4 months.
# o& i/ v7 W' D5 j y' |# \Physical examination at this time revealed that the
1 u3 p6 C3 i6 K% a/ x3 Lchild had grown 2.5 cm in 4 months and had gained3 t1 x2 g8 ?2 z& {7 ^. k! L S
2 kg of weight. Physical examination remained9 J' }9 ~! }/ [! h
unchanged. Surprisingly, the pubic hair almost com-
3 b" b8 K3 l6 o$ N3 upletely disappeared except for a few vellous hairs at' k7 r* J/ E+ T3 }, y
the base of the phallus. Testicular volume was still 2. \1 V, d! b' e2 G* _9 ^' `8 s
mL, and the size of the penis remained unchanged.; d" G/ E y4 ^ t; S3 v& H
The mother also said that the boy was no longer hav-( a; R- C( \7 v) b6 W: [& a
ing frequent erections.( Z2 A! \" y! S5 }) c* o/ T# T1 B
Both parents were again questioned about use of
8 h U$ D1 U# `. O g! U6 Gany ointment/creams that they may have applied to
$ F) H. k' e5 X9 c8 }3 L; g) bthe child’s skin. This time the father admitted the
4 o x& t) X- NTopical Testosterone Exposure / Bhowmick et al 541 \7 t; D( ~# m3 A: `5 l4 {3 Z
use of testosterone gel twice daily that he was apply-8 ^( m0 O& i) x
ing over his own shoulders, chest, and back area for$ e8 |" o. ^7 p: M
a year. The father also revealed he was embarrassed/ I% e" d0 u, C; p' I. k
to disclose that he was using a testosterone gel pre-4 j, V9 ]+ A$ g6 S3 {
scribed by his family physician for decreased libido
" M5 b0 n0 N5 `4 y6 X: N4 ^1 `secondary to depression.9 L# u1 U. ^5 g0 {) o# _
The child slept in the same bed with parents.
- X1 e; L- J; ]. E" J! KThe father would hug the baby and hold him on his
5 c: b+ ^# Y, J+ P- Q/ Qchest for a considerable period of time, causing sig-2 J) @& ~! H, S1 g4 n# M
nificant bare skin contact between baby and father.
+ g" S2 Y% @" F+ l+ D% P7 y6 n# tThe father also admitted that after the phone call,- S' r6 W3 T% L: Y' i$ [9 @- @9 w
when he learned the testosterone level in the baby C4 q5 {# y. ^' _7 E B
was high, he then read the product information \4 q0 s3 t. x$ H6 V8 [
packet and concluded that it was most likely the rea-
2 j: [. I- G) D# X9 g; m& }+ Gson for the child’s virilization. At that time, they# P! V$ Z [ [ c6 s' N9 Y0 T
decided to put the baby in a separate bed, and the
+ h5 o& ~) s6 ]0 z+ cfather was not hugging him with bare skin and had* W( U: s$ U) V* D. e6 i6 z
been using protective clothing. A repeat testosterone
2 e2 [! d- c9 l5 F- C9 z+ ^test was ordered, but the family did not go to the
: l; s: t- ^6 o8 Q( l1 Ilaboratory to obtain the test.* ~3 D! I+ u$ Z7 @2 |5 k
Discussion
" p% _! y* g$ H4 K# I. M5 s! Q" TPrecocious puberty in boys is defined as secondary, v9 m6 U5 v ^8 `" _3 K
sexual development before 9 years of age.1,41 k# U" h" f) m' ]0 P% L6 Q# |
Precocious puberty is termed as central (true) when
1 O, k6 L) Q0 H. E, kit is caused by the premature activation of hypo-) Y% \2 S3 C1 G! q1 ] f
thalamic pituitary gonadal axis. CPP is more com-
. W7 M, r% _7 } L0 H7 `, r# emon in girls than in boys.1,3 Most boys with CPP
; \+ l# D* H% O smay have a central nervous system lesion that is
, n6 s! e* N* w2 fresponsible for the early activation of the hypothal-3 `* p( o* ?* K: a7 |+ k# I" @
amic pituitary gonadal axis.1-3 Thus, greater empha-
: {' x- h# w; U+ r+ L, a7 M3 Ksis has been given to neuroradiologic imaging in1 J" t) r, v0 b2 s9 }1 A, s- q/ |. z
boys with precocious puberty. In addition to viril-: J9 \2 j, O+ N: i1 @2 E0 u
ization, the clinical hallmark of CPP is the symmet-8 g8 d) k# P. s( b1 J% t) Z
rical testicular growth secondary to stimulation by
- E4 n* a$ n# g! A: J. w& Igonadotropins.1,3, _) `+ B$ H5 a9 z4 o5 S1 p" J& {
Gonadotropin-independent peripheral preco-
, ~5 T( u' W1 e& g" Pcious puberty in boys also results from inappropriate
+ H* B; I; b# h1 T4 Handrogenic stimulation from either endogenous or6 i& C" }: l9 @. M! c" u
exogenous sources, nonpituitary gonadotropin stim-
6 Q4 I8 [7 }; A; k7 eulation, and rare activating mutations.3 Virilizing6 ]7 ~* E* T' V+ X0 u3 e, y8 z
congenital adrenal hyperplasia producing excessive
9 m* Z6 Q" y5 u, }, J2 wadrenal androgens is a common cause of precocious; ~9 T1 }& B, f4 G* A; G
puberty in boys.3,4+ i4 q+ g3 u/ z5 |5 c: Q
The most common form of congenital adrenal9 T5 C* _8 L8 D# c& B" G- |4 K
hyperplasia is the 21-hydroxylase enzyme deficiency.) a: `' e) T0 M/ r
The 11-β hydroxylase deficiency may also result in5 t. ] o8 w+ d, l1 j6 Q6 V; I/ r
excessive adrenal androgen production, and rarely,: `7 r- J3 d1 J& E4 M h# G7 N
an adrenal tumor may also cause adrenal androgen( W! Z$ N7 P* ~, B, X
excess.1,3
8 v2 a# R% E( n a/ Lat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from. I8 e. f7 p/ `( ]# `
542 Clinical Pediatrics / Vol. 46, No. 6, July 2007
( P9 r H1 z3 mA unique entity of male-limited gonadotropin-
6 C [7 a; C' y0 L/ ^) d/ Rindependent precocious puberty, which is also known1 r5 g6 C! K5 X
as testotoxicosis, may cause precocious puberty at a& y$ u& @- }8 {/ q) z/ |8 p F
very young age. The physical findings in these boys- v* q# G7 t- O3 l a
with this disorder are full pubertal development,- J+ U4 q" Y# T
including bilateral testicular growth, similar to boys
. S8 U, [" o. n5 D0 y2 ~1 gwith CPP. The gonadotropin levels in this disorder4 d( q* w( r8 @) X/ Y. S
are suppressed to prepubertal levels and do not show9 Q2 p3 r& E0 v
pubertal response of gonadotropin after gonadotropin-+ O7 d# \: W% G% X" [
releasing hormone stimulation. This is a sex-linked" z6 J( q% A( A1 v$ x* N' U+ I5 b
autosomal dominant disorder that affects only. R8 [+ H; ~# t: K
males; therefore, other male members of the family
1 l$ k* D4 v0 |) Imay have similar precocious puberty.3
! G, Q: j7 \- @% n5 T( q% i. fIn our patient, physical examination was incon-
8 v5 t4 T# T2 f0 Msistent with true precocious puberty since his testi-
" M& S5 Q& r0 H) [cles were prepubertal in size. However, testotoxicosis* g+ @2 y" O& m; z; ?3 E7 k
was in the differential diagnosis because his father4 M' \* } @ g7 l
started puberty somewhat early, and occasionally,2 L4 L! K t. g; x
testicular enlargement is not that evident in the
4 u# Z0 }2 T9 j) rbeginning of this process.1 In the absence of a neg-: f) e2 @3 W0 p8 Z+ L$ }0 w
ative initial history of androgen exposure, our: ~* a$ J4 l% s* _# V
biggest concern was virilizing adrenal hyperplasia,6 j5 @5 B1 z6 V
either 21-hydroxylase deficiency or 11-β hydroxylase
" u0 h3 V4 I3 Y3 a6 I9 Hdeficiency. Those diagnoses were excluded by find-
, J; Q2 E0 d7 m/ Y6 D3 x, ming the normal level of adrenal steroids., c" T( _* F M U; U. h6 U
The diagnosis of exogenous androgens was strongly$ ^8 l, x; w- s3 |0 _, P' J6 {
suspected in a follow-up visit after 4 months because# a1 l y6 C+ E M) ]4 g* T$ V7 |+ [- x
the physical examination revealed the complete disap-
# H8 a& W# |" @) z" K3 |pearance of pubic hair, normal growth velocity, and
; L4 p# e" N g1 O! |decreased erections. The father admitted using a testos-
8 \1 {: V5 D0 x. _/ Pterone gel, which he concealed at first visit. He was
) f) t% W' C/ Q1 h0 b+ i1 tusing it rather frequently, twice a day. The Physicians’
$ x5 r- i5 I: P/ F! x( F* CDesk Reference, or package insert of this product, gel or
4 `( {5 a1 f: f. \2 {cream, cautions about dermal testosterone transfer to2 _; Z6 i4 B% G
unprotected females through direct skin exposure.: ~# ?+ L8 e/ `& a- W$ e
Serum testosterone level was found to be 2 times the
, B, ^7 C, S) G$ Dbaseline value in those females who were exposed to9 @4 k }( f9 [& D. ~7 p
even 15 minutes of direct skin contact with their male5 D0 u. W+ O. L- A/ y
partners.6 However, when a shirt covered the applica-5 I1 S; l0 x8 R& i
tion site, this testosterone transfer was prevented.$ h: A$ [5 b( h( Q
Our patient’s testosterone level was 60 ng/mL,
9 `1 C7 P- S1 Y* b, k/ H& bwhich was clearly high. Some studies suggest that
2 Q8 p4 ^ w# c2 w0 { G( Gdermal conversion of testosterone to dihydrotestos-
+ }9 j3 n9 q% C0 P( k7 x2 Bterone, which is a more potent metabolite, is more i; ?& T. t! n0 d9 @' Z
active in young children exposed to testosterone8 p# |/ x+ b; r( ]6 K# B5 o z6 ]
exogenously7; however, we did not measure a dihy-
% E3 T" p3 M. i3 C7 \2 m- Y9 Adrotestosterone level in our patient. In addition to
% {9 f" N' h! ~/ d- G% M5 Zvirilization, exposure to exogenous testosterone in0 m- a5 U0 s: ~1 z7 P- `1 T5 O
children results in an increase in growth velocity and* Q( A1 \- h" G' `) z9 y( S
advanced bone age, as seen in our patient.
0 w9 k6 H, ?' s$ H9 ~The long-term effect of androgen exposure during
1 O% s, w3 a! o2 ?early childhood on pubertal development and final
/ l2 \+ t' i; V8 H; @; madult height are not fully known and always remain7 |2 V8 n& u; q! }" W; I- |
a concern. Children treated with short-term testos-
# _( a+ m* e/ s2 ~" Wterone injection or topical androgen may exhibit some
/ e8 s5 w' U! ?5 `# racceleration of the skeletal maturation; however, after* n& O7 R C- ]& @3 c0 h+ H7 `& g
cessation of treatment, the rate of bone maturation
# W% m* p& l3 c7 z; E( T9 s6 A% G/ [decelerates and gradually returns to normal.8,9# ?4 s; z2 e% u1 Y7 {7 d
There are conflicting reports and controversy
, c8 b# D" e: d6 Cover the effect of early androgen exposure on adult
6 W7 O# |5 @6 n; `0 ?2 L1 }. Lpenile length.10,11 Some reports suggest subnormal
1 s& U/ x( k! N. b8 ` ]% xadult penile length, apparently because of downreg-' x% O9 C) \, x+ |& ]. K1 x2 n
ulation of androgen receptor number.10,12 However,, M9 N. o! z# A
Sutherland et al13 did not find a correlation between
2 x8 B$ h. K; |2 y/ i: }1 Echildhood testosterone exposure and reduced adult" [- Z; L a* H i+ Y! x
penile length in clinical studies.* T; j6 x H0 m4 N( R% O2 K4 u
Nonetheless, we do not believe our patient is
N& F) \# k- k1 U8 Ygoing to experience any of the untoward effects from
; i- H: q! k4 r1 Stestosterone exposure as mentioned earlier because
, R% ?# d9 ?) g c7 v' Rthe exposure was not for a prolonged period of time.- z. ]. t- z& K, U8 G9 v- e$ m
Although the bone age was advanced at the time of' i, j2 Q# [& s" G5 W% i
diagnosis, the child had a normal growth velocity at
( N1 i/ W+ u( x2 @/ qthe follow-up visit. It is hoped that his final adult0 G# l1 c/ {4 a( N$ ]
height will not be affected./ O) Z5 j# c) K) T
Although rarely reported, the widespread avail-8 G3 A- B& P8 Q, l1 H% W! S
ability of androgen products in our society may
) ~1 ]8 G, c2 N6 k" E; l5 X% oindeed cause more virilization in male or female
_" J& m; L! w: {' nchildren than one would realize. Exposure to andro-" a1 _: u5 \% C3 |" K7 j
gen products must be considered and specific ques-& @) ^3 C) e) ~) R
tioning about the use of a testosterone product or; [ P. K4 ?& a) N; X" P* Z) y
gel should be asked of the family members during
+ ?5 W7 {/ ^. a6 u" bthe evaluation of any children who present with vir-8 u, ?" v* }+ \* X3 ]" v0 O% Q
ilization or peripheral precocious puberty. The diag-; M+ d% ]2 B! l E W8 a
nosis can be established by just a few tests and by! K# [0 `3 ~3 @# \
appropriate history. The inability to obtain such a
/ B# A, s8 ]* [history, or failure to ask the specific questions, may
: g$ j5 U M' [* zresult in extensive, unnecessary, and expensive
: T3 x3 }3 ~# S7 \8 f/ \; [% einvestigation. The primary care physician should be$ I, ^6 F6 X2 E: i- n
aware of this fact, because most of these children' f$ @# w( t) D4 u
may initially present in their practice. The Physicians’
8 w4 q/ O8 Y4 `& W9 zDesk Reference and package insert should also put a
! i1 y5 b2 `5 o$ z; Dwarning about the virilizing effect on a male or
9 _/ n% W0 b- U5 d/ l9 q; kfemale child who might come in contact with some-( q" t. d' F& M+ F: }1 ]
one using any of these products.
7 o( u& I- ^) d( Z+ B5 s: _ hReferences
) [# m/ h" v- |8 m# m' O. J1. Styne DM. The testes: disorder of sexual differentiation' }! z3 a! |1 G2 A: k
and puberty in the male. In: Sperling MA, ed. Pediatric7 d1 j8 C5 z: X2 K, K' y9 \! c1 O
Endocrinology. 2nd ed. Philadelphia, PA: WB Saunders;
/ Z/ {$ ^7 w2 l7 z" F2002: 565-628.
2 r- O, D1 b. E7 f2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious* P5 j( v7 M( w$ r
puberty in children with tumours of the suprasellar pineal |
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