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is a significant concern for physicians. Central
0 H" b" {. U. w# Tprecocious puberty (CPP), which is mediated
: a: f+ O0 C) Y; G2 Y; {through the hypothalamic pituitary gonadal axis, has' ^! z, q9 n+ a( A( ^) C+ l. ~* Q
a higher incidence of organic central nervous system
3 }. ?% X! H$ Wlesions in boys.1,2 Virilization in boys, as manifested: I6 u- w: U4 ^! j3 v! m$ k. K% x
by enlargement of the penis, development of pubic
3 X' p& S( l$ E0 N9 f! F! ?hair, and facial acne without enlargement of testi-
2 X5 q! }5 [! J! _cles, suggests peripheral or pseudopuberty.1-3 We a: P+ ^. V: h. W. R& F5 w
report a 16-month-old boy who presented with the
9 O" @3 X: h! |, ?* h3 Lenlargement of the phallus and pubic hair develop-
8 G6 L `1 P6 d, n( Q3 iment without testicular enlargement, which was due
# L$ v0 X3 e$ z% eto the unintentional exposure to androgen gel used by" j$ H* W! |+ M+ P/ ]" L3 b8 e
the father. The family initially concealed this infor-2 u7 t7 o. [( h& W6 {- A+ [4 C
mation, resulting in an extensive work-up for this
- n) f i" Y7 c3 B" t& O& @( a: r6 `child. Given the widespread and easy availability of) Q( G( I% `+ k4 ]4 d M2 B
testosterone gel and cream, we believe this is proba-
( p, l" P7 }, P0 S! sbly more common than the rare case report in the/ T+ [; `. n6 G+ x0 i& U( a& ~. K0 V
literature.4: Q$ z" h1 ~3 L. g) e D' l/ P
Patient Report) x" o3 t" Y- V2 q9 D" \2 s. V$ K
A 16-month-old white child was referred to the
$ A0 x/ j5 Z7 U1 W+ bendocrine clinic by his pediatrician with the concern/ B% T9 `' w0 o( ]) Q
of early sexual development. His mother noticed: x* _2 [( j6 j( v8 y; Q4 ~
light colored pubic hair development when he was8 z- H6 I+ f' ]( |* r7 L
From the 1Division of Pediatric Endocrinology, 2University of) j: `; ~1 y' _* ~; U
South Alabama Medical Center, Mobile, Alabama.4 F5 W4 B# \) @: I0 k e: ]+ ^6 \
Address correspondence to: Samar K. Bhowmick, MD, FACE,
1 V2 M" g2 j6 c7 c4 l JProfessor of Pediatrics, University of South Alabama, College of& i8 x1 }- w8 N, m. Q
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;
A! e( w- f# O- @e-mail: [email protected].
& U" r) B, i. z6 L7 q0 i5 Z! x# qabout 6 to 7 months old, which progressively became/ S/ `7 q# z; P* r+ ^3 }3 E( X3 u
darker. She was also concerned about the enlarge-
7 t5 G5 a- p1 I( G! Z& Iment of his penis and frequent erections. The child
7 K" {# p" S# n% X8 I: dwas the product of a full-term normal delivery, with
$ e% z5 Q4 X" i" s4 w4 m9 aa birth weight of 7 lb 14 oz, and birth length of
1 v3 t* A% {5 W3 d0 `20 inches. He was breast-fed throughout the first year
* F1 ]% e0 y/ j3 W, f2 X+ u- M: x! cof life and was still receiving breast milk along with
/ g: z0 g7 y! i4 s+ K1 {# P( h+ Tsolid food. He had no hospitalizations or surgery,1 V1 ~7 V& O( h' Q- N& }, b4 {
and his psychosocial and psychomotor development
1 N! R1 p2 B6 p4 @- A; x+ G0 Mwas age appropriate.5 q1 r( Q0 Z4 f, M
The family history was remarkable for the father,6 J3 E V% \1 }
who was diagnosed with hypothyroidism at age 16,. d, j: o& D' j1 q1 w# T
which was treated with thyroxine. The father’s
$ }0 ~7 c5 W2 E; c, T- Uheight was 6 feet, and he went through a somewhat5 i! x$ r2 k/ n6 p5 c; f1 |
early puberty and had stopped growing by age 14.
9 d" C6 Y M% c2 V5 \- j7 @% U! ^/ |The father denied taking any other medication. The
. H* x* M c, e |; Dchild’s mother was in good health. Her menarche
4 N& I% \" ?6 C; _) c! N1 j0 `was at 11 years of age, and her height was at 5 feet4 d- W0 B* o$ ?! }* V7 @% ]
5 inches. There was no other family history of pre-1 i! A/ _ G$ Q
cocious sexual development in the first-degree rela-
4 h# J5 F+ ^$ O% A! f' B, W+ Itives. There were no siblings.% \. l' O% V: ~2 M
Physical Examination
8 v D$ P, [& P6 S% U* Q- bThe physical examination revealed a very active,# z n2 z$ n; R6 n/ R: K& N( U: T
playful, and healthy boy. The vital signs documented/ }( X- }6 J6 a4 u
a blood pressure of 85/50 mm Hg, his length was
6 l) v4 ^2 I0 ^3 u( M2 `$ ^; t; c n90 cm (>97th percentile), and his weight was 14.4 kg
0 M. ?$ ~. d# D4 @(also >97th percentile). The observed yearly growth
: G' N& @! @$ c! E* _4 Y4 uvelocity was 30 cm (12 inches). The examination of" d9 @' `1 K% ^
the neck revealed no thyroid enlargement.7 ?2 K; ?0 S7 V: d- z) N
The genitourinary examination was remarkable for
! ~' x R% P3 {( O2 F3 s3 X# h* l/ L: wenlargement of the penis, with a stretched length of% G5 P6 ]$ W3 |& e; K
8 cm and a width of 2 cm. The glans penis was very well) h7 H. `5 I% ^6 N) [
developed. The pubic hair was Tanner II, mostly around
; z0 o) V0 }8 k4 L& D540
! j- T, h6 J) q. D" o- Z7 D, Mat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
; a# T- `: T. C" v4 k# I- d# r& W$ o! Kthe base of the phallus and was dark and curled. The+ q9 I5 ~% M% H) Y+ Z* x
testicular volume was prepubertal at 2 mL each.
$ w ?/ D$ ` ?* {The skin was moist and smooth and somewhat' a- y- R$ f* r% q" ?9 F3 I6 W
oily. No axillary hair was noted. There were no
& P4 P* L' ~4 @' P# Eabnormal skin pigmentations or café-au-lait spots. w8 k, N1 B% t; Q$ }$ r( y' q6 L
Neurologic evaluation showed deep tendon reflex 2+$ ~1 t/ ^ g) }
bilateral and symmetrical. There was no suggestion6 ~! i1 K2 d7 j' m. E0 `4 r# w* f
of papilledema. S5 a- H6 o6 W) i
Laboratory Evaluation2 G/ i$ r | y$ w6 p% [# d' N; k
The bone age was consistent with 28 months by
; Q. K% y4 K1 Ausing the standard of Greulich and Pyle at a chrono-
`; ^* }5 E6 k" ? {4 S/ r e4 j$ Ulogic age of 16 months (advanced).5 Chromosomal& Y/ N6 e3 C& F% E+ w+ s
karyotype was 46XY. The thyroid function test
; K& h E" W1 ]1 K4 sshowed a free T4 of 1.69 ng/dL, and thyroid stimu-
) F6 U. q3 K! H, L) M+ o: Hlating hormone level was 1.3 µIU/mL (both normal).$ B$ h7 _5 c9 H* y$ D* S/ S$ N
The concentrations of serum electrolytes, blood0 m* }) }/ \; C6 e+ n
urea nitrogen, creatinine, and calcium all were
% C/ R8 W; }' i( F l) Lwithin normal range for his age. The concentration. F0 r( Z4 ^6 m4 n3 i2 W& v v
of serum 17-hydroxyprogesterone was 16 ng/dL
- w( f- K1 S8 Q1 Z# E(normal, 3 to 90 ng/dL), androstenedione was 20! Z; Z# d& p( C9 s! y- {
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-" ^- V: [& ]" O& u
terone was 38 ng/dL (normal, 50 to 760 ng/dL),
$ n* B* l; j/ u+ @desoxycorticosterone was 4.3 ng/dL (normal, 7 to
" o ]7 j: X* s' W3 I7 C x2 f4 Y; _( d49ng/dL), 11-desoxycortisol (specific compound S)
: ~# g9 O* n% k+ Xwas 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-/ |) \0 W- a3 m, V
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total: f! {9 \ D1 [; ~# @
testosterone was 60 ng/dL (normal <3 to 10 ng/dL)," S/ R: w8 Q* p8 I E* w% J/ s
and β-human chorionic gonadotropin was less than
* Q6 J: ]% w7 k. {8 V5 mIU/mL (normal <5 mIU/mL). Serum follicular# c; s( a* t, b, G5 j9 J
stimulating hormone and leuteinizing hormone) s( [) K/ v! [
concentrations were less than 0.05 mIU/mL! V t/ ^8 E F) _6 _; C6 M
(prepubertal).
: {' |, w9 p& v4 J/ D( lThe parents were notified about the laboratory: i+ \1 e) Q0 H5 o: x2 r4 j
results and were informed that all of the tests were0 O9 `$ d$ n/ S6 S
normal except the testosterone level was high. The9 ~9 G: @/ }: r% ]
follow-up visit was arranged within a few weeks to
4 b7 I1 N- L2 i9 t1 r; j. Eobtain testicular and abdominal sonograms; how-
* ?2 z$ c" M! s' L8 Yever, the family did not return for 4 months.
% z, k; n+ \/ D& QPhysical examination at this time revealed that the
6 r/ A) l- n( x5 X5 r& P& D q( Schild had grown 2.5 cm in 4 months and had gained" J: h6 e L x& z4 {$ d4 F' Y. x
2 kg of weight. Physical examination remained& L8 a: X7 c+ _* W2 F4 c% j
unchanged. Surprisingly, the pubic hair almost com-8 N0 J" n% }6 u' X) x' M7 Y
pletely disappeared except for a few vellous hairs at
' h% L9 ?1 \. G$ F/ ~the base of the phallus. Testicular volume was still 2
6 e v! w( B; _- A* f" e% ~mL, and the size of the penis remained unchanged.- [5 A4 |4 J9 `
The mother also said that the boy was no longer hav-
5 H1 k' S6 L$ m* ]$ p; w& Y5 w8 King frequent erections.* f! K8 l) G' l: _! x Q, G
Both parents were again questioned about use of8 y3 K3 r& k. O4 `2 O
any ointment/creams that they may have applied to
r8 H j9 Q* P2 I: h1 H" C8 ythe child’s skin. This time the father admitted the
5 ?$ k8 u- L- T6 d$ \Topical Testosterone Exposure / Bhowmick et al 541
2 Z: f8 {% H$ A5 ^) x( duse of testosterone gel twice daily that he was apply-$ R F6 e6 e( t; n0 @
ing over his own shoulders, chest, and back area for8 V! ]/ q2 V% t$ V6 o
a year. The father also revealed he was embarrassed
# |6 F: Z; d2 @6 h7 q6 Q, [' g' ^to disclose that he was using a testosterone gel pre-
) b9 @* ~& }& p) g& A% R! Qscribed by his family physician for decreased libido4 J; a7 o6 k# w+ I3 `" X" a+ G
secondary to depression.
; |& m2 r9 Z1 `The child slept in the same bed with parents.
# F/ W6 a$ Z! o' I: \ lThe father would hug the baby and hold him on his
1 G) L. c1 {1 hchest for a considerable period of time, causing sig-
9 z6 [& G+ P4 S. [5 mnificant bare skin contact between baby and father.' P: Q w7 f, _+ a/ k, k# E
The father also admitted that after the phone call,& t" i8 h7 }+ u G
when he learned the testosterone level in the baby) \1 ?, ]8 T, X# J3 k' u3 D$ k y
was high, he then read the product information% b, U3 k6 | m: O" \
packet and concluded that it was most likely the rea-
$ A. n$ w$ I" ?" ]$ ?son for the child’s virilization. At that time, they0 d0 u/ B% ~3 J7 w3 ^: Y
decided to put the baby in a separate bed, and the
+ @1 @0 |4 J2 sfather was not hugging him with bare skin and had
! q0 p( o$ b* ?8 r' q$ ibeen using protective clothing. A repeat testosterone! w9 x* v% [: Y* A: ~. p
test was ordered, but the family did not go to the
3 ?! Y8 }8 ], y" Zlaboratory to obtain the test.
/ ?; H/ }+ B, x) D3 W9 jDiscussion
) R5 w/ {$ C* CPrecocious puberty in boys is defined as secondary6 R" s% O% g# N: f! X$ v' n4 K
sexual development before 9 years of age.1,4% }4 ]6 `, u- n( ^9 S; m. |0 i
Precocious puberty is termed as central (true) when
! P+ ~; E2 U9 wit is caused by the premature activation of hypo-
4 J4 K% {( E! Z; t* uthalamic pituitary gonadal axis. CPP is more com-
7 y7 p% F, M4 ?8 w# ~mon in girls than in boys.1,3 Most boys with CPP' T6 J5 {+ n, z* B& J
may have a central nervous system lesion that is7 u9 G* n, V T$ O
responsible for the early activation of the hypothal-! L5 C: [' D- u+ L4 l) U: K
amic pituitary gonadal axis.1-3 Thus, greater empha-5 w" R, @, B4 o* T# J/ T
sis has been given to neuroradiologic imaging in
2 w T; w9 |( F) pboys with precocious puberty. In addition to viril-; Z, v) `+ e! O1 T% P. j9 l/ Q( w
ization, the clinical hallmark of CPP is the symmet-; Z* H2 i* t+ D1 \, u4 o
rical testicular growth secondary to stimulation by
9 e& q/ E# U4 g# a% v) _3 Ngonadotropins.1,3
# _/ u- H E$ J( e1 z" ?Gonadotropin-independent peripheral preco-
9 a! ]: S4 h# W; B! ^cious puberty in boys also results from inappropriate- i+ W+ J0 u" R; p
androgenic stimulation from either endogenous or
" m% E. j3 S; x: Y2 l0 {0 rexogenous sources, nonpituitary gonadotropin stim-
% e- q. U% x3 d2 [( q1 H# b0 }, ^ulation, and rare activating mutations.3 Virilizing
0 C w2 \3 w8 l/ ]% {" ucongenital adrenal hyperplasia producing excessive% f, |9 d2 ^/ M" R V* x5 W
adrenal androgens is a common cause of precocious# ^+ r/ b) q; I
puberty in boys.3,4: z/ E9 g$ A K
The most common form of congenital adrenal
# ^9 W) ^& E* t$ U' k8 a+ thyperplasia is the 21-hydroxylase enzyme deficiency.$ B$ C" @" \* Y+ p5 `- M! u o3 T, m
The 11-β hydroxylase deficiency may also result in- q5 T% i& ?0 y% o6 X8 |
excessive adrenal androgen production, and rarely,- c: J! x2 v J8 J
an adrenal tumor may also cause adrenal androgen
5 n$ W) G y7 @3 mexcess.1,3
) |7 O# M( h; V9 `% C, yat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from& B: Q7 R% O; }6 e1 ~
542 Clinical Pediatrics / Vol. 46, No. 6, July 2007 x. _. _! _' H
A unique entity of male-limited gonadotropin-
1 ~. g6 `+ D5 ?6 J) ~! Aindependent precocious puberty, which is also known# M% m/ _' k" H% M0 A& j
as testotoxicosis, may cause precocious puberty at a
9 f, p2 q% q* W; ?. D3 hvery young age. The physical findings in these boys
9 m' k* W- z6 e9 ^with this disorder are full pubertal development,4 P/ h2 c' j( ]
including bilateral testicular growth, similar to boys
) e, p: P( J1 I- j* owith CPP. The gonadotropin levels in this disorder
J7 g; f" M% Z8 h2 ?7 L a8 W: Qare suppressed to prepubertal levels and do not show
4 u+ M6 d, E9 G( ]+ P$ Y s- N/ bpubertal response of gonadotropin after gonadotropin-
% O3 ?3 }# W2 _9 freleasing hormone stimulation. This is a sex-linked
$ `) I9 t7 Q: M2 L2 K6 t/ Rautosomal dominant disorder that affects only# {4 s/ l5 y5 \- G. X2 I
males; therefore, other male members of the family
K p$ A B) x6 r ~2 W2 qmay have similar precocious puberty.3
* l8 u- O/ v |; F$ s: j$ MIn our patient, physical examination was incon-0 y* v' k) O4 O# r U' c3 B
sistent with true precocious puberty since his testi-
: B" b6 y& u; S6 L e, Ncles were prepubertal in size. However, testotoxicosis
2 J5 G# V; U2 p7 g; T9 a+ vwas in the differential diagnosis because his father9 i3 t1 x% C7 M$ s/ z& [4 ?
started puberty somewhat early, and occasionally,, B6 w5 G3 `2 v5 @, E
testicular enlargement is not that evident in the
, Z3 I" Z" P Kbeginning of this process.1 In the absence of a neg-) d! f- k; N6 q5 T* r: ?/ h
ative initial history of androgen exposure, our
) u; {; k4 K4 I6 G# V2 `biggest concern was virilizing adrenal hyperplasia,
* U# d8 |! i `/ D) ceither 21-hydroxylase deficiency or 11-β hydroxylase% R1 ~; Q2 R) x& d
deficiency. Those diagnoses were excluded by find-
" s( E% p: t# m: G# `: L0 sing the normal level of adrenal steroids.
; D- [& _% Z. P- gThe diagnosis of exogenous androgens was strongly
4 }- n, c5 f( Ssuspected in a follow-up visit after 4 months because
& i) E9 l# N& X8 Qthe physical examination revealed the complete disap-0 s* }+ q B- H v
pearance of pubic hair, normal growth velocity, and
" P& F$ C8 R; p: _6 F& Hdecreased erections. The father admitted using a testos-
# I+ s. \+ e4 j1 @ Fterone gel, which he concealed at first visit. He was4 f. _4 }9 D2 X3 u2 L; E
using it rather frequently, twice a day. The Physicians’
6 j' O* }1 i, f& r ^9 j5 tDesk Reference, or package insert of this product, gel or5 G* t9 L0 p. c% z7 Z# }+ T
cream, cautions about dermal testosterone transfer to
# n, T2 q) l" N6 o: @3 E( Eunprotected females through direct skin exposure.2 Q3 u2 K2 t7 H" D) |
Serum testosterone level was found to be 2 times the
H7 C7 s; m9 z% J6 e# Z$ w! w$ z0 kbaseline value in those females who were exposed to" [3 b( G+ u8 K7 v- z* u7 Z8 G
even 15 minutes of direct skin contact with their male
# j) P! ?, g5 h! k5 _" m0 s' }partners.6 However, when a shirt covered the applica-5 n! q7 W& D+ U j3 Y) L9 E7 V
tion site, this testosterone transfer was prevented." F+ @$ t+ a; s6 J8 K6 b! H
Our patient’s testosterone level was 60 ng/mL,* y3 y: p! [3 |% ^
which was clearly high. Some studies suggest that
& {0 y4 c! m, s$ ]/ ndermal conversion of testosterone to dihydrotestos-$ \9 q$ b* @# b
terone, which is a more potent metabolite, is more
5 c$ q5 t/ a" J3 O* c" ]active in young children exposed to testosterone
/ }; K; ~! z4 x2 j3 j3 W6 }, ~" Iexogenously7; however, we did not measure a dihy-
6 ^( H5 T5 z; {4 Q+ ?drotestosterone level in our patient. In addition to N0 P+ N2 W' {: G, {, u% m
virilization, exposure to exogenous testosterone in) L7 k6 o' V4 v1 z( q
children results in an increase in growth velocity and) Z- y4 C+ T' P
advanced bone age, as seen in our patient.
* R0 A, i% g' A. ]- hThe long-term effect of androgen exposure during! H3 B6 R4 A* R0 y) k& n
early childhood on pubertal development and final
0 M( W. O$ a7 ^; Hadult height are not fully known and always remain J: E$ \/ I) H8 g7 i% i1 r
a concern. Children treated with short-term testos-9 l$ T* v7 a: I; H' f
terone injection or topical androgen may exhibit some
$ C( W, K( S" }* B+ v4 k. O( Q3 Z" I& aacceleration of the skeletal maturation; however, after# _+ {9 E5 W! i
cessation of treatment, the rate of bone maturation3 q8 o6 ^: i! a' f
decelerates and gradually returns to normal.8,9
0 \- I$ s: b- x0 H0 n, P& cThere are conflicting reports and controversy: N4 b2 S! z2 n0 t, H+ b% I/ d" X
over the effect of early androgen exposure on adult' z5 k, Z7 x$ u: O' B! _! k% R! a
penile length.10,11 Some reports suggest subnormal
6 Z0 y+ [; }0 Eadult penile length, apparently because of downreg-1 Y) Z3 O. u% v! F \ `
ulation of androgen receptor number.10,12 However,
* @) @8 C7 W6 r. K/ FSutherland et al13 did not find a correlation between
* i# F5 w/ K% }0 ~& cchildhood testosterone exposure and reduced adult
/ L' A7 k0 D" Q" ipenile length in clinical studies.4 m4 U7 s M! S6 U6 c
Nonetheless, we do not believe our patient is/ a7 ]5 @- t5 \, Z" s- @1 b
going to experience any of the untoward effects from2 g) a2 n4 I f( t# N- {/ ?8 e
testosterone exposure as mentioned earlier because3 o- z/ w* H: F: _/ N
the exposure was not for a prolonged period of time.# J0 W; Z, v) p& O9 F" \3 j4 f
Although the bone age was advanced at the time of
! M- d' O7 e; G: t: X( Cdiagnosis, the child had a normal growth velocity at
" _6 P2 T& Z- j# h# `0 Lthe follow-up visit. It is hoped that his final adult
. c% S5 e2 h6 Dheight will not be affected.
% I0 i5 M: W/ \Although rarely reported, the widespread avail-/ k9 g7 d& |/ h- W/ d
ability of androgen products in our society may
0 D& Q9 N! z( C, Findeed cause more virilization in male or female
, R9 l0 J; r& s! T. l# J/ H* Ochildren than one would realize. Exposure to andro-
' [' a' T- k* ?! B' lgen products must be considered and specific ques-
4 t) X1 j4 S9 Y! h% u5 d wtioning about the use of a testosterone product or
3 Y7 X8 P8 s7 {: h( N _3 X9 Bgel should be asked of the family members during7 g; s2 [6 i) S8 F
the evaluation of any children who present with vir-; B2 z0 G* ~7 M+ b% Y* f n2 Y& A
ilization or peripheral precocious puberty. The diag-
- `& P& H1 G) W, N" Unosis can be established by just a few tests and by
& o& y0 f0 m( A5 V9 Z% Oappropriate history. The inability to obtain such a
: W/ |3 B; p0 ^! ?; K. T5 Fhistory, or failure to ask the specific questions, may
$ U$ L4 b4 D3 S' m/ w1 H# ~2 A# uresult in extensive, unnecessary, and expensive
- x: m7 ]3 s B; W/ Pinvestigation. The primary care physician should be
9 E: U, |2 B) c9 B& Q; Gaware of this fact, because most of these children# r8 T" C- j* {0 n4 \( E( u; k
may initially present in their practice. The Physicians’8 U! M" h) c; [* G, p/ O
Desk Reference and package insert should also put a
- Y5 d$ Y3 V9 h$ f5 y4 G1 cwarning about the virilizing effect on a male or
6 C, A2 Z9 z7 H6 n+ sfemale child who might come in contact with some-
$ D' o$ x8 o+ s* lone using any of these products.
e+ o7 L8 g5 X+ p$ a" fReferences# a5 [. G @0 E4 z V* ]
1. Styne DM. The testes: disorder of sexual differentiation/ [# b4 W+ u2 L' Y. v. |
and puberty in the male. In: Sperling MA, ed. Pediatric/ j$ m8 E @1 q5 ?
Endocrinology. 2nd ed. Philadelphia, PA: WB Saunders;
' U4 ?% J% u& F8 ~$ e2002: 565-628.- s% f4 W/ T9 H1 ^, b) r6 z
2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious* ]$ p w* s* J8 W+ z
puberty in children with tumours of the suprasellar pineal1 v) _) f1 r, p4 U
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from$ X; {5 c. S* g. o5 I: E* |
Topical Testosterone Exposure / Bhowmick et al 543
5 S3 Z7 M- d3 T5 Z/ W A5 Z5 ~areas: organic central precocious puberty. Acta Paediatr.5 Y2 r4 s( w2 u2 ~ Y) u- _* G! l7 _: h
2001;90:751-756.' ]/ ~; S/ _% l' C3 k- r# x
3. Lee PA. Puberty and its disorders. In: Lifshitz F, ed.9 v! j3 D, [1 H. w% A
Pediatric Endocrinology. 4th ed. New York, NY: Marcel- X* R+ Q$ r6 f! d, F# F; W8 O3 X9 f2 C u) e
Dekker Inc; 2003:211-238.
5 w& k) {. m6 y6 i# _4 ^ l) f6 Y4. Yu YM, Punyasavatsu N, Elder D, D’Ercole AJ. Sexual
- Q2 ?# n$ ]: l4 ~development in a two-year-old boy induced by topical
! e$ C9 z: {1 w1 ^7 S yexposure to testosterone. Pediatrics. 1999;104:e23.2 S0 _; i/ }7 g; B
5. Greulich WW, Pyle SI, eds. Radiographic Atlas of
# C. }1 a6 c% Q5 p' MSkeletal Development of the Hand and Wrist. 2nd ed.
( E& @+ ?( B4 c; p2 X* G( CStanford, CA: Stanford University Press; 1959.+ t5 g% p" a! N2 p( n% s2 v/ \( ^4 G
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