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is a significant concern for physicians. Central( b- N# x7 p+ ^4 w- _& t
precocious puberty (CPP), which is mediated# [7 [ J6 t0 l4 N+ l. F
through the hypothalamic pituitary gonadal axis, has
/ X7 E! k7 T/ P1 [& `7 N% Na higher incidence of organic central nervous system6 e2 S2 Z7 Z/ t; E
lesions in boys.1,2 Virilization in boys, as manifested) b" ~3 C* F' \2 X0 P8 ^2 ?% U" Z
by enlargement of the penis, development of pubic
% D0 |7 _' e& e# C! N0 ]hair, and facial acne without enlargement of testi-
. O6 [' @$ {2 Y1 @, X( kcles, suggests peripheral or pseudopuberty.1-3 We( W* ?# e5 s+ P
report a 16-month-old boy who presented with the& h1 K& r5 b& S$ l# {5 m5 B
enlargement of the phallus and pubic hair develop-
( Q% y& Z0 x2 B* w* H- ?3 r8 fment without testicular enlargement, which was due
7 z- I1 p. z* j6 M( wto the unintentional exposure to androgen gel used by
9 [' F1 b; J& Ethe father. The family initially concealed this infor-
4 h- M/ ^: i/ U$ H/ Pmation, resulting in an extensive work-up for this: j, e5 E4 y; _ k
child. Given the widespread and easy availability of7 a6 S2 n% R8 n0 A( X4 R: p
testosterone gel and cream, we believe this is proba-& f8 w9 |) E l& {1 u! u
bly more common than the rare case report in the: V0 g$ C# R$ C$ i+ S9 E% ~
literature.4
; Z' @3 j2 L# x8 m' s2 h2 BPatient Report" {! B8 i2 _' ^* N) |; O, ^# E
A 16-month-old white child was referred to the
; \2 {* h& F" l# fendocrine clinic by his pediatrician with the concern& X; Y) |% ]2 @. f- P2 a% m) L1 `% }
of early sexual development. His mother noticed. a" Q# U/ Z; O& W8 _; N w
light colored pubic hair development when he was
/ R+ U3 e% P- u" P2 v8 [' QFrom the 1Division of Pediatric Endocrinology, 2University of
. p4 N0 W b" KSouth Alabama Medical Center, Mobile, Alabama.
7 p! w; W7 W( \- V, w2 I" G: wAddress correspondence to: Samar K. Bhowmick, MD, FACE,
$ e# x5 O4 f; q0 p$ g. \! vProfessor of Pediatrics, University of South Alabama, College of' a( z9 \- k7 X$ ~& e
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;
9 w, t4 c* L O* l3 {' o; k# ~/ @e-mail: [email protected].
/ ]- O9 N* ^7 M! B6 m/ A# Qabout 6 to 7 months old, which progressively became
8 [$ _/ ^7 A5 x, E* V6 ~; f$ [darker. She was also concerned about the enlarge-5 G! O- E; L3 Z- s, p$ ]6 B0 G
ment of his penis and frequent erections. The child4 C1 P1 g: ^2 {( M* _! h
was the product of a full-term normal delivery, with
- o; j* S" @/ t5 Ka birth weight of 7 lb 14 oz, and birth length of
+ s4 x$ m5 \( G& x0 ?) X20 inches. He was breast-fed throughout the first year* Q' j: g: r' V
of life and was still receiving breast milk along with5 N! t# P7 R5 _% \: w2 S) Z7 E
solid food. He had no hospitalizations or surgery,
o. | S2 G+ zand his psychosocial and psychomotor development
8 z0 @% N- F9 l9 swas age appropriate.
% N* M% ^/ m$ l. LThe family history was remarkable for the father,
" X! E8 R L2 B( c% i2 d$ \" y( Zwho was diagnosed with hypothyroidism at age 16," q6 ]3 l: B* f9 k# p8 H
which was treated with thyroxine. The father’s
" }' c7 C1 \' d6 e" [height was 6 feet, and he went through a somewhat
- l% [( d a" H$ F) Zearly puberty and had stopped growing by age 14.
" [) P- ^+ y, A+ LThe father denied taking any other medication. The
! o; p1 `. _: D; [! schild’s mother was in good health. Her menarche
% h1 B1 R9 z) e+ W1 v3 Gwas at 11 years of age, and her height was at 5 feet6 N5 _( z- U" u9 y x
5 inches. There was no other family history of pre-
1 s' n1 w: Y; l! z+ E7 q# Z3 fcocious sexual development in the first-degree rela-' }! b# Q' N+ W9 V9 w* C
tives. There were no siblings.
2 F( a. y9 k( Y9 y2 APhysical Examination
. W- [ f9 [4 d3 Y& ]' ~: WThe physical examination revealed a very active,
# K- W$ t% e) Z1 S9 ~1 yplayful, and healthy boy. The vital signs documented7 c( ]- n+ G2 J+ j; |, X+ z3 [+ W
a blood pressure of 85/50 mm Hg, his length was9 M; X% s0 H, F, B' [( }4 a9 K5 b1 \
90 cm (>97th percentile), and his weight was 14.4 kg
1 B. ]( M& C* F" J3 B1 Y% K(also >97th percentile). The observed yearly growth0 x8 Z. ^+ A5 a2 o
velocity was 30 cm (12 inches). The examination of" Q; c* U( ^ J5 x1 T! U
the neck revealed no thyroid enlargement.* K6 u; n8 {+ |5 J& x
The genitourinary examination was remarkable for" C9 T' t _! ?% l% o5 V9 N3 O
enlargement of the penis, with a stretched length of" ^8 q& X; f) [. m3 U
8 cm and a width of 2 cm. The glans penis was very well
, _9 W/ x$ L1 X9 Q4 c8 [3 m4 ]developed. The pubic hair was Tanner II, mostly around' k) m k8 k; I* I. {
540
& l) N/ ]+ p. n, L _+ }at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
' `( S6 h. m* ^7 P6 f+ {2 u+ d/ tthe base of the phallus and was dark and curled. The
: @" N0 q1 X$ Otesticular volume was prepubertal at 2 mL each.
. T# `" y e$ V7 O& pThe skin was moist and smooth and somewhat f8 e+ z% H6 X; V! [" U
oily. No axillary hair was noted. There were no
, n9 e8 @2 H; ~4 A; W u3 }abnormal skin pigmentations or café-au-lait spots.7 K) M m* G4 ]) \, K) k+ a
Neurologic evaluation showed deep tendon reflex 2+
) M$ _4 _0 ~0 v Q( X8 z' O2 Rbilateral and symmetrical. There was no suggestion& S1 |0 J6 @+ Q: o$ Q0 r! a
of papilledema.$ U7 c7 ]& l3 h% _5 Q, h. w% I
Laboratory Evaluation
: ]* f( J) p0 q2 m* W4 C3 rThe bone age was consistent with 28 months by
% v) |% F1 S! {, Y0 w5 [8 i- Lusing the standard of Greulich and Pyle at a chrono-
- x: }( R! W$ f# N/ T, Mlogic age of 16 months (advanced).5 Chromosomal
2 G9 Z" j# ]! P6 t( vkaryotype was 46XY. The thyroid function test
9 b1 Y, y( |1 u; S/ cshowed a free T4 of 1.69 ng/dL, and thyroid stimu- h5 N& S0 M3 ~' w. q7 P
lating hormone level was 1.3 µIU/mL (both normal).7 J; N( t; Q, `5 |2 `
The concentrations of serum electrolytes, blood$ E* p3 {/ G4 e) U0 z
urea nitrogen, creatinine, and calcium all were
& P2 f3 ^! N9 J$ u9 Lwithin normal range for his age. The concentration7 D) W; w( k( T+ U
of serum 17-hydroxyprogesterone was 16 ng/dL
2 c( V. y3 \3 F' V1 |5 u(normal, 3 to 90 ng/dL), androstenedione was 20$ B8 g) F/ U7 \2 Q& c3 K
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-7 m# N5 E. g4 Q8 y1 a9 F. T
terone was 38 ng/dL (normal, 50 to 760 ng/dL),$ b: w1 j0 f: H: C; V/ F) V) @4 I
desoxycorticosterone was 4.3 ng/dL (normal, 7 to; f. N% R5 }$ f6 Z0 K0 I! T
49ng/dL), 11-desoxycortisol (specific compound S)
7 d* a3 W$ B% ]was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-
6 T( s" L7 ~1 ^5 B' h) s P% utisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total
! p3 y& Q4 _, v# N' B4 n3 k! atestosterone was 60 ng/dL (normal <3 to 10 ng/dL),5 m) a" n! W& Q, r
and β-human chorionic gonadotropin was less than; J( U* ^6 c3 h
5 mIU/mL (normal <5 mIU/mL). Serum follicular
8 H5 ~; a; _9 zstimulating hormone and leuteinizing hormone
. O c9 U1 V3 ?/ ^2 W. R0 Nconcentrations were less than 0.05 mIU/mL
9 ~! _$ H" o2 h: X, `) D) h- c4 V% w(prepubertal).* v5 a" Q( Y: a5 }1 ]! b# x
The parents were notified about the laboratory
9 D/ {8 C8 M+ T2 ~% F& oresults and were informed that all of the tests were2 c1 ~) O2 O1 @( q" U
normal except the testosterone level was high. The2 }6 z9 k) R5 B& E; e- D
follow-up visit was arranged within a few weeks to
( J& H; L' x- _obtain testicular and abdominal sonograms; how-" }* _) z' o( i* D/ a' F4 w
ever, the family did not return for 4 months.
2 u$ ~! P# o1 _3 y* t/ U. QPhysical examination at this time revealed that the
7 u, a& R: Q/ I7 C M. d8 Echild had grown 2.5 cm in 4 months and had gained
& x% m3 A# i4 ^$ ?2 kg of weight. Physical examination remained. w$ v5 \0 h9 J( y9 f/ P: A
unchanged. Surprisingly, the pubic hair almost com-4 M% G( l5 {! b$ W3 n* k
pletely disappeared except for a few vellous hairs at
1 d2 ^' w9 h5 G% t# x$ Lthe base of the phallus. Testicular volume was still 2" @; j0 c; v H- S
mL, and the size of the penis remained unchanged.
* t1 l# H! I5 p' O% i: iThe mother also said that the boy was no longer hav-
3 j5 f! F* d1 g* B* a$ [ing frequent erections.
( P- A% N3 o9 r8 N( NBoth parents were again questioned about use of1 O( }' x$ H, n% [4 S& Y: f
any ointment/creams that they may have applied to3 H+ f. Q9 x4 K
the child’s skin. This time the father admitted the
1 Q9 ]/ J7 p6 J1 K) |2 DTopical Testosterone Exposure / Bhowmick et al 541# z% Q2 Q d# x, J$ ]
use of testosterone gel twice daily that he was apply-
" J4 p) P! C, W. a ming over his own shoulders, chest, and back area for
; }0 h4 B4 Z; ~) sa year. The father also revealed he was embarrassed* _& D( l' v. J
to disclose that he was using a testosterone gel pre-" q+ u( e! a7 R: C8 `+ y4 z# S ^
scribed by his family physician for decreased libido* g2 T. ], P7 ?1 J& z
secondary to depression.- ~# \+ i5 \3 f, k
The child slept in the same bed with parents.
) u3 a2 Q D; B4 x% ]9 IThe father would hug the baby and hold him on his
1 p5 ^2 y( f; o+ k! Wchest for a considerable period of time, causing sig-
- q$ Z! d: E# r- Mnificant bare skin contact between baby and father.
% l6 x+ ?# X+ fThe father also admitted that after the phone call,
) t7 T& G* Q& ~* j2 z: d4 Owhen he learned the testosterone level in the baby! d' f6 ~# N& B; n% H" K* @% u
was high, he then read the product information
$ B: ]. J" u; b o1 w2 Z6 H! A5 F) f* Kpacket and concluded that it was most likely the rea-
' |5 L- V$ o8 v- A, Nson for the child’s virilization. At that time, they
- j% y8 M& _1 X3 S+ I3 Bdecided to put the baby in a separate bed, and the
! g. b8 y" ~5 l6 {2 Pfather was not hugging him with bare skin and had3 c( n, y3 A+ e4 o
been using protective clothing. A repeat testosterone2 ^8 a8 l$ u) H* @. ^1 {* t8 J
test was ordered, but the family did not go to the, r! F; F/ n- ^* l2 M9 t
laboratory to obtain the test.
0 u+ \3 R0 L4 n" J$ hDiscussion5 F# h1 d4 R7 M8 s7 F
Precocious puberty in boys is defined as secondary
5 P P8 X1 X/ x! B4 c6 Z1 b' }sexual development before 9 years of age.1,4
" h$ g I: F) l% x- ?! e/ S R" XPrecocious puberty is termed as central (true) when8 n2 ], h! g- f8 A" C. _: ^) ^
it is caused by the premature activation of hypo-+ `6 s3 d+ e# W4 ?( W4 l t, u. x
thalamic pituitary gonadal axis. CPP is more com-3 P6 ]6 A" g" J1 g/ e8 C$ p) h6 `% b
mon in girls than in boys.1,3 Most boys with CPP6 {+ H3 h( f6 c% O; k* K
may have a central nervous system lesion that is
" q% m& E1 `3 i8 ~3 l& p& Cresponsible for the early activation of the hypothal-: K1 _ Q7 h0 D4 j5 x$ q6 o( V
amic pituitary gonadal axis.1-3 Thus, greater empha-
$ c0 l6 D I& e7 k2 Ysis has been given to neuroradiologic imaging in1 x7 U( p) Y8 m& Q, S5 Q( w! \6 Y' |
boys with precocious puberty. In addition to viril-4 K3 X. P9 P; S2 |6 S6 \
ization, the clinical hallmark of CPP is the symmet-
2 U8 T% w' Z( Jrical testicular growth secondary to stimulation by0 M8 p6 t( T" d& p5 a' F
gonadotropins.1,3! H* r% L% C3 ]8 l% ?* b
Gonadotropin-independent peripheral preco-
- V a( _9 |" f- }% s p! jcious puberty in boys also results from inappropriate7 S3 R, h. a) f7 [
androgenic stimulation from either endogenous or
6 d+ ]: V& A, s/ U( X- Dexogenous sources, nonpituitary gonadotropin stim-: z( A: D- K8 t9 e
ulation, and rare activating mutations.3 Virilizing
. i: `8 D f- _0 t2 W2 j; o P; f& ^congenital adrenal hyperplasia producing excessive
3 B8 y8 c8 V/ W9 v/ V) aadrenal androgens is a common cause of precocious
6 C5 \/ }' a. S$ [/ A- npuberty in boys.3,4
, m8 M; D. x$ z9 Z Q8 gThe most common form of congenital adrenal
" h8 B6 |6 f0 o. s' P( ehyperplasia is the 21-hydroxylase enzyme deficiency.3 E% W- a/ g/ | ^) W
The 11-β hydroxylase deficiency may also result in {: G7 u- ^" w. y# ^
excessive adrenal androgen production, and rarely,! q! p" {/ q) G# g6 O8 p
an adrenal tumor may also cause adrenal androgen1 E6 y) ^3 @# T* _ C4 l; u
excess.1,37 b8 U+ b9 }7 c; a3 q) F4 t- e. k
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from1 T9 n: k7 t* A5 B( `" r9 w
542 Clinical Pediatrics / Vol. 46, No. 6, July 2007- Q8 R* q5 ]/ k% P1 H6 t
A unique entity of male-limited gonadotropin-
5 s5 F! j5 b) E5 w8 d/ ]independent precocious puberty, which is also known
& m% S8 L2 m Y9 G% U' sas testotoxicosis, may cause precocious puberty at a
1 c& h+ ~2 x1 q6 K2 v5 Vvery young age. The physical findings in these boys
1 E1 Z' d# |3 F/ C& ]: Bwith this disorder are full pubertal development,
) A# I( R6 E& s$ W/ ]including bilateral testicular growth, similar to boys6 n4 \% Z4 Y% D* w7 [
with CPP. The gonadotropin levels in this disorder/ j6 }/ l- h j
are suppressed to prepubertal levels and do not show! d; P) s: z. o7 u9 f8 u
pubertal response of gonadotropin after gonadotropin-6 y P9 l2 e% y1 x+ m0 K
releasing hormone stimulation. This is a sex-linked
3 w0 u+ V- e6 E( T$ Hautosomal dominant disorder that affects only+ P7 g' H* [# V! `
males; therefore, other male members of the family
7 Y0 r7 s ^# z( X7 v9 H/ s3 [may have similar precocious puberty.36 g% |/ h6 V1 T3 s, v4 k. ?9 R
In our patient, physical examination was incon-
2 }! M( l5 p! y, S {sistent with true precocious puberty since his testi-
) N3 f2 Z4 Y: W1 b/ Acles were prepubertal in size. However, testotoxicosis
- ?! S7 I) ^9 D7 \: pwas in the differential diagnosis because his father" {! v2 E+ i/ ~" k) ^
started puberty somewhat early, and occasionally,* T' C% v( K i8 J `
testicular enlargement is not that evident in the$ I, T& Z- p: m. z- N
beginning of this process.1 In the absence of a neg-4 y0 `9 N) A! S
ative initial history of androgen exposure, our
% m( S3 }5 e( J$ q; `7 S4 dbiggest concern was virilizing adrenal hyperplasia,
+ D; e9 R, @' veither 21-hydroxylase deficiency or 11-β hydroxylase
7 |1 |0 g8 t' z5 e$ C5 a, S- Udeficiency. Those diagnoses were excluded by find-7 t, ~7 c' k3 @& P7 v( q% M# k
ing the normal level of adrenal steroids.
3 p/ d. `! j9 D4 f3 w1 RThe diagnosis of exogenous androgens was strongly7 v4 k5 _% m6 }& Z8 N
suspected in a follow-up visit after 4 months because
7 g+ d ^ g; a) E3 x6 t& Cthe physical examination revealed the complete disap-% }& e, f& L: D6 [& B4 G' @
pearance of pubic hair, normal growth velocity, and
$ {" G" a: d. f8 ~decreased erections. The father admitted using a testos-/ W, b( I- d# t6 J5 }
terone gel, which he concealed at first visit. He was" r$ W( m; s$ @' L$ b0 X a
using it rather frequently, twice a day. The Physicians’
$ S) ~3 |+ a7 X7 X5 c2 f3 RDesk Reference, or package insert of this product, gel or: R# G$ H7 U: [# E
cream, cautions about dermal testosterone transfer to
. n3 L4 `7 E! Q2 U" x- {unprotected females through direct skin exposure.
9 \' Z3 a* K7 h/ F9 MSerum testosterone level was found to be 2 times the
% U. [/ s# g. a0 u- \baseline value in those females who were exposed to
; y0 G# T, ], ~" e& _1 Ceven 15 minutes of direct skin contact with their male2 \6 z- v6 t0 c
partners.6 However, when a shirt covered the applica-
2 D" t- y4 E1 M7 xtion site, this testosterone transfer was prevented.1 Z) T- l3 J: C1 m% {; \4 O& e( x
Our patient’s testosterone level was 60 ng/mL,
* z6 X- \7 v* M8 Rwhich was clearly high. Some studies suggest that
4 @/ `( ^/ K- x: s4 N2 w6 idermal conversion of testosterone to dihydrotestos-# ^# B/ w2 Q2 g- B/ f
terone, which is a more potent metabolite, is more
5 v6 c, V1 }* _( gactive in young children exposed to testosterone' o5 v1 \1 v. K4 `2 Z0 H8 S, A4 Z% n& r
exogenously7; however, we did not measure a dihy-7 g# Y; Q# ^0 S
drotestosterone level in our patient. In addition to
+ D! g( z3 g- |" m8 B' a- Fvirilization, exposure to exogenous testosterone in9 |6 o& _: Q' V% o8 Q6 H
children results in an increase in growth velocity and
$ p1 {4 v+ o, c/ B+ ~1 f( q( zadvanced bone age, as seen in our patient.6 ]; ]7 \9 [) i; m. ], v
The long-term effect of androgen exposure during
8 X! {! L/ C+ \ F, C4 T4 Bearly childhood on pubertal development and final3 t$ y* p" j3 j! n, V
adult height are not fully known and always remain# @7 X6 ?! ]# D
a concern. Children treated with short-term testos-, b" p( A3 T5 [. R5 A8 C f
terone injection or topical androgen may exhibit some3 `" g% c* G3 w% d, S+ `
acceleration of the skeletal maturation; however, after
9 j0 |! S2 j4 E" J& H- `cessation of treatment, the rate of bone maturation& [6 V( p% m' d. _( l( I+ _3 J
decelerates and gradually returns to normal.8,9 T! K2 i$ T2 H8 L& v" x- F
There are conflicting reports and controversy& U2 u! x* {( x+ Z# N
over the effect of early androgen exposure on adult
, w5 m5 d3 S. {* C- Zpenile length.10,11 Some reports suggest subnormal
' a! {5 v' s- {% d# x; o$ z; {adult penile length, apparently because of downreg-
( T# d$ m) z& w: aulation of androgen receptor number.10,12 However,
5 x% ^+ L! ]1 {" P! m6 wSutherland et al13 did not find a correlation between9 p1 t' _8 R- x& w& I) [ ]% n) I) u
childhood testosterone exposure and reduced adult$ ^4 I- v) D/ e$ f6 v# W& |
penile length in clinical studies.# x. y3 i% V2 p, A$ [0 O
Nonetheless, we do not believe our patient is1 P9 e* _9 G6 Z- @9 R# S6 M+ |
going to experience any of the untoward effects from
8 f: j U! U3 m, E, c8 U9 F _' otestosterone exposure as mentioned earlier because9 U- J5 J. i m" ^: |9 k; g
the exposure was not for a prolonged period of time.' [3 Z% b: a' U9 b d9 }5 h3 ]& r
Although the bone age was advanced at the time of7 n5 x- [, L( m; N7 e3 l5 ~; m
diagnosis, the child had a normal growth velocity at. A! F: U' X0 I1 v( A4 {5 Z
the follow-up visit. It is hoped that his final adult
& f' F' K+ f1 f' R' R7 ~height will not be affected.& y& o8 x; `8 G# r& L9 O8 h
Although rarely reported, the widespread avail-
e( o5 i: w0 j3 k4 l5 Cability of androgen products in our society may5 Y. w( q7 B* f+ [! K7 M
indeed cause more virilization in male or female2 |4 s* P3 J d0 D
children than one would realize. Exposure to andro-
) Q( J' \; b& g2 k( Jgen products must be considered and specific ques-1 I# Y. X; Y9 s% O& X- p' O* v
tioning about the use of a testosterone product or! @1 b: G6 ^$ f; q/ D
gel should be asked of the family members during' H& ^4 \1 K( ]. Q1 Z7 U
the evaluation of any children who present with vir-
- s" |- R- U3 r" h, Hilization or peripheral precocious puberty. The diag-4 M4 L+ q7 K: h$ k. U
nosis can be established by just a few tests and by9 w' B* n9 P* z* L$ c9 ?
appropriate history. The inability to obtain such a/ m- M6 N L$ p# u5 k4 g
history, or failure to ask the specific questions, may( a. F- k% F6 l$ I3 }8 O6 `3 K2 {
result in extensive, unnecessary, and expensive
; `6 p0 z+ b' z4 G V% rinvestigation. The primary care physician should be
c! E t% G6 `1 o: \& eaware of this fact, because most of these children
0 N. b* j$ e& u: u7 g. d& rmay initially present in their practice. The Physicians’+ v, t1 @* S; M; n+ @4 b8 N
Desk Reference and package insert should also put a
& v+ l5 U$ o# x* K0 W& f( Cwarning about the virilizing effect on a male or
9 x- N* l, G. q5 [ B' Tfemale child who might come in contact with some-! @: d2 @5 P$ y" ~8 p
one using any of these products.
0 N3 t. `0 M5 `- ]References
& a$ \- z$ t5 I, r, Q. \" T2 U g* _1. Styne DM. The testes: disorder of sexual differentiation8 t6 b5 {* T/ Y7 `. p: [
and puberty in the male. In: Sperling MA, ed. Pediatric L% Z; \- A# E: y' Y
Endocrinology. 2nd ed. Philadelphia, PA: WB Saunders;$ }6 a( w$ K1 c0 z4 A; D8 h
2002: 565-628.
+ [! g. ~" l0 P# P& h2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious/ B' H* i h: x, N* t1 f
puberty in children with tumours of the suprasellar pineal
5 t2 x/ L- f, p0 [at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from; j) S8 T. U5 C& L( a
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areas: organic central precocious puberty. Acta Paediatr.
8 d1 s! ]3 E( s2001;90:751-756.
7 d2 o; x8 F: z: u6 r# ^3. Lee PA. Puberty and its disorders. In: Lifshitz F, ed.- S4 P; _) {" R+ N& n( H
Pediatric Endocrinology. 4th ed. New York, NY: Marcel
v& h! B) @8 j- NDekker Inc; 2003:211-238.
% H# t7 V6 w$ [5 N7 x4. Yu YM, Punyasavatsu N, Elder D, D’Ercole AJ. Sexual
& F+ c4 z# H; E* F8 Q, K+ X1 fdevelopment in a two-year-old boy induced by topical; u$ C0 T- L4 P; [5 r' U
exposure to testosterone. Pediatrics. 1999;104:e23.& e9 c# Y; C8 G! C+ P) K
5. Greulich WW, Pyle SI, eds. Radiographic Atlas of4 ^- \8 x' F% i8 w; @
Skeletal Development of the Hand and Wrist. 2nd ed.
0 h) I- A# K4 Q2 S: ^5 t7 RStanford, CA: Stanford University Press; 1959.
, m- ~2 W5 ]- F& @6 w6. Physicians’ Desk Reference. Androgel 1% testosterone,+ L) G6 c; y" O: h/ x8 D
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