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is a significant concern for physicians. Central
, S3 Q3 y. ^/ }precocious puberty (CPP), which is mediated0 M+ v" g' v. |1 q
through the hypothalamic pituitary gonadal axis, has; ~9 J, u2 {. k- c
a higher incidence of organic central nervous system
3 X9 Q/ s* Y- Elesions in boys.1,2 Virilization in boys, as manifested
3 u# N! W5 A8 Hby enlargement of the penis, development of pubic% P: q$ [9 V( `1 z' k5 w
hair, and facial acne without enlargement of testi-
) n# X8 F# O- U6 Y0 qcles, suggests peripheral or pseudopuberty.1-3 We
6 c' D# }, d5 {" l( _report a 16-month-old boy who presented with the
& I) q( v/ O" {# C) oenlargement of the phallus and pubic hair develop-
' ~- }0 y/ x: Q$ O% ]7 Z3 I' Zment without testicular enlargement, which was due
. @+ f8 b* m# i% m" J9 x6 I( oto the unintentional exposure to androgen gel used by
& U# P' |* b2 S) U6 l0 F9 Mthe father. The family initially concealed this infor-
, F. B* H7 s% C5 d1 r g+ emation, resulting in an extensive work-up for this
" v. A+ z& ? [6 k8 Xchild. Given the widespread and easy availability of# P/ E# E" o/ j7 j; O& i
testosterone gel and cream, we believe this is proba- m, W# b$ ~7 I; D$ C5 z- f
bly more common than the rare case report in the t; }2 H1 Y: G. ]* j- k
literature.4
1 e: D$ a" B. zPatient Report
* l4 k9 P" `4 U& m7 EA 16-month-old white child was referred to the/ Z; ?9 m2 R* P
endocrine clinic by his pediatrician with the concern
5 i% [* l& l+ g( K; Vof early sexual development. His mother noticed
. x% S5 ~. D$ M+ {light colored pubic hair development when he was
+ W- a- V- s0 a) @# m+ }0 }9 H XFrom the 1Division of Pediatric Endocrinology, 2University of( X4 M O+ L" z7 b* I
South Alabama Medical Center, Mobile, Alabama.0 w( V" U$ K, C5 `: I1 G5 C
Address correspondence to: Samar K. Bhowmick, MD, FACE,- V$ s0 d$ p" k$ ]% g
Professor of Pediatrics, University of South Alabama, College of
) C( B, H- b5 c& G8 ^! f) D* K# zMedicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;
: e" w/ o5 E0 V2 Qe-mail: [email protected].
# m2 C- T1 E" a. e8 x5 Pabout 6 to 7 months old, which progressively became; O2 y- [% N$ Z; b8 y& @
darker. She was also concerned about the enlarge-5 D0 ~% i; j( c, Z2 B
ment of his penis and frequent erections. The child
. f- K' @; k$ s F; {was the product of a full-term normal delivery, with
7 C5 c4 D1 i; g! B* Wa birth weight of 7 lb 14 oz, and birth length of# D' m3 Z9 n* _. H
20 inches. He was breast-fed throughout the first year5 k) ~6 }3 I) a: [7 d
of life and was still receiving breast milk along with
( P# q: @4 X6 K. F. H4 ^solid food. He had no hospitalizations or surgery,
% n5 i8 I; D. w9 j4 a7 Z- i6 Hand his psychosocial and psychomotor development# e; g. J5 U$ G/ \7 c" w
was age appropriate.( A9 ?9 z0 h9 S% c8 A6 K1 \
The family history was remarkable for the father,
% g$ j9 T% @* s- B! w/ b) W( A$ s" Y3 Iwho was diagnosed with hypothyroidism at age 16,* ^& @: S# e. C: a8 k: M; A/ d
which was treated with thyroxine. The father’s7 Z( U0 d O, I8 t! t8 R$ h, S& D1 |
height was 6 feet, and he went through a somewhat0 z# U/ U# l6 H/ M0 [, Z) H
early puberty and had stopped growing by age 14.
# @7 D C" s% U: R+ F$ _% ]The father denied taking any other medication. The
6 v9 a6 b9 G' F9 `( L8 P. H1 |- ^child’s mother was in good health. Her menarche
4 W/ l. g) K0 l' H) C7 k" X$ _1 ^( S- Iwas at 11 years of age, and her height was at 5 feet
, h; U9 j. T% g: k) `6 s, j5 inches. There was no other family history of pre-
5 v, x# m- E: a+ X5 ococious sexual development in the first-degree rela-) s* l6 A6 s. I0 y! U
tives. There were no siblings.5 z' r# T( H7 L% ~2 L7 A
Physical Examination; |# h1 k7 Q% Y4 `# I6 N
The physical examination revealed a very active,9 B, J6 T" W, a* f; v( C
playful, and healthy boy. The vital signs documented( G* V% t! {5 B4 U, k/ t
a blood pressure of 85/50 mm Hg, his length was
* W p0 n0 A% }* g( ?/ h0 I0 X# D90 cm (>97th percentile), and his weight was 14.4 kg
* _1 H' g* X: ?3 ~ N: }(also >97th percentile). The observed yearly growth
# z4 ]0 H, S3 z0 G1 U. ^velocity was 30 cm (12 inches). The examination of
% W7 a( [) r+ K& J7 g/ Wthe neck revealed no thyroid enlargement.0 t) j$ f) O* I9 v% i8 l& K5 x
The genitourinary examination was remarkable for. n; R+ H+ O% Z
enlargement of the penis, with a stretched length of
3 y" U+ F8 k: [9 w' r f# V/ t8 cm and a width of 2 cm. The glans penis was very well
% d" G$ u4 K, H( O1 m5 b* A( {developed. The pubic hair was Tanner II, mostly around
# ]8 T1 l# _" z+ L7 Z5409 N6 f, `6 }; Z q
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from& ^# q. W, s ?3 D. A& P; o
the base of the phallus and was dark and curled. The4 N0 N8 q2 H1 j' l/ U
testicular volume was prepubertal at 2 mL each.
: u) e% B4 t" a3 H3 rThe skin was moist and smooth and somewhat
3 J1 ^5 Z; n+ k4 O+ Voily. No axillary hair was noted. There were no
0 Q, C; t; e5 l2 l+ [, O$ ?( [abnormal skin pigmentations or café-au-lait spots.
( C3 H9 S$ K: v$ R* WNeurologic evaluation showed deep tendon reflex 2+. Q/ ?7 D2 @$ S; L
bilateral and symmetrical. There was no suggestion) A; }1 l9 n% j( G" j b
of papilledema.
. W- f8 R9 B0 E$ |& VLaboratory Evaluation
, K3 f1 m9 ]: A& P! w4 g) AThe bone age was consistent with 28 months by
) Z/ y5 Z- z3 a1 `using the standard of Greulich and Pyle at a chrono-
0 a( n5 E7 J0 X7 hlogic age of 16 months (advanced).5 Chromosomal
1 y. ~3 Y( Y, k8 U$ Ukaryotype was 46XY. The thyroid function test' @% O6 q: {5 b- @" w! e
showed a free T4 of 1.69 ng/dL, and thyroid stimu-
& a3 N, W1 b6 t. ~7 P! Rlating hormone level was 1.3 µIU/mL (both normal).
8 u8 n) [; [- ]- l( L0 W; `The concentrations of serum electrolytes, blood
5 a6 A! t) V/ u% \# U( {/ vurea nitrogen, creatinine, and calcium all were% Z4 ^5 s. X2 C8 Z
within normal range for his age. The concentration
3 i. L" M2 R" x* Cof serum 17-hydroxyprogesterone was 16 ng/dL0 S5 q6 \- e6 q6 g8 m5 x
(normal, 3 to 90 ng/dL), androstenedione was 203 r: i) x; [% u" e1 @8 o) q: x
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-& d0 `: X9 F6 _1 l, Q* j
terone was 38 ng/dL (normal, 50 to 760 ng/dL),
$ }! f' q7 o3 Y0 e- w- S7 Idesoxycorticosterone was 4.3 ng/dL (normal, 7 to: z1 X. }/ H, Z: L* G$ R
49ng/dL), 11-desoxycortisol (specific compound S)! {3 b; {. a \8 r/ C0 h; t
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-
5 d* c4 }# R1 ptisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total, ] x4 b+ y* r0 X
testosterone was 60 ng/dL (normal <3 to 10 ng/dL),
" T# e" U# w/ S6 l9 c+ I' ]and β-human chorionic gonadotropin was less than
- B5 G1 l0 i" O4 a. h5 mIU/mL (normal <5 mIU/mL). Serum follicular/ @) O# }0 |2 y3 S2 |5 C9 p g
stimulating hormone and leuteinizing hormone+ u Y1 f) c! P$ p$ q
concentrations were less than 0.05 mIU/mL" j0 i, t9 r4 P/ Y, [) Z1 I; f
(prepubertal).
9 v9 Y2 o" B+ }# Q: @- ]& l" ^* rThe parents were notified about the laboratory
) o# R9 X# X$ I& x- T$ C- E/ \results and were informed that all of the tests were% ~0 E& \! k0 ^: ~! Z0 e8 R" Z% y
normal except the testosterone level was high. The; U# H( [# I$ l5 @4 S; Q" M8 k+ w) z
follow-up visit was arranged within a few weeks to
; }5 [5 e+ q3 wobtain testicular and abdominal sonograms; how-: `2 W& O/ ~) P8 L& S. m2 `+ I) q
ever, the family did not return for 4 months.& \; P" b4 q$ [! }8 p
Physical examination at this time revealed that the# `6 Y% Y9 c) p- u- E6 Q9 P( P% V
child had grown 2.5 cm in 4 months and had gained+ ] G0 v; U* I9 h& r
2 kg of weight. Physical examination remained
# n: E5 S2 x$ ^* x7 Dunchanged. Surprisingly, the pubic hair almost com-
v2 F1 X$ @( f1 K. {) Upletely disappeared except for a few vellous hairs at8 s) O4 M" E9 E$ K5 a$ T: t' v
the base of the phallus. Testicular volume was still 2 C& D( w3 a/ W6 A$ L2 u
mL, and the size of the penis remained unchanged.7 f, ^; l5 e# P7 y0 |5 z
The mother also said that the boy was no longer hav-- O* Z; i5 m* G: E! r, v
ing frequent erections.
9 Y x$ M3 H# O- [- S3 B TBoth parents were again questioned about use of, ^: j) e% _4 \- p) ?9 B
any ointment/creams that they may have applied to
3 c. q8 J+ B0 A. ethe child’s skin. This time the father admitted the. j4 V' a0 R1 y/ I0 U3 c
Topical Testosterone Exposure / Bhowmick et al 541$ F$ P# C' ?, c9 N L, w z/ C% l. k
use of testosterone gel twice daily that he was apply-' c' ]* V) Y, _# s8 I! T1 k
ing over his own shoulders, chest, and back area for
/ a. d5 D- ]* n, F! Pa year. The father also revealed he was embarrassed
1 v h1 _8 A3 z j' a$ eto disclose that he was using a testosterone gel pre-1 L: |6 O% Z/ U. {
scribed by his family physician for decreased libido) m5 @& D6 L9 L" a) ~
secondary to depression.
R' f0 k& q) x1 |- ]' _# S' O+ }The child slept in the same bed with parents.
" l1 p1 L. D7 M- O% W! J1 f3 lThe father would hug the baby and hold him on his
5 S3 P2 O- z7 k9 r8 w- h' o. R5 _% Qchest for a considerable period of time, causing sig-# b' l$ B5 k, k- ^7 |/ o5 `
nificant bare skin contact between baby and father.
b# u3 M t7 ~( I6 R7 \, h# K, gThe father also admitted that after the phone call,
% Z! x0 `7 M2 b ~2 Y: a! twhen he learned the testosterone level in the baby
, j' u4 W8 f8 Y4 Uwas high, he then read the product information' p( Q {) y: z# Y0 R# j; W6 t
packet and concluded that it was most likely the rea-: z0 s; E$ R( X9 Y3 U/ ^+ R+ ~3 D" H
son for the child’s virilization. At that time, they! Q. U7 c) s' I) b0 \. }4 N- w
decided to put the baby in a separate bed, and the9 t( _( Z; k/ m6 b" ~$ h3 B2 r$ c
father was not hugging him with bare skin and had( R5 S( G! N& v
been using protective clothing. A repeat testosterone
; D* N9 ?/ k; n! `test was ordered, but the family did not go to the
4 u: b* b5 n7 ]1 @/ X& Blaboratory to obtain the test.
% n8 n5 f$ m( Y3 V" t# u1 |, {Discussion
) K* {3 O! `% ?( V: c* HPrecocious puberty in boys is defined as secondary
5 c3 O! I' f' w+ ]/ u: o$ V9 Ssexual development before 9 years of age.1,4
5 ]9 d# S2 q- H) c( |Precocious puberty is termed as central (true) when
4 }: t1 H V' w0 F, o5 j( r6 W( fit is caused by the premature activation of hypo-
0 E* F& ]6 t# v1 m! b% [thalamic pituitary gonadal axis. CPP is more com-5 K* u- c {! e
mon in girls than in boys.1,3 Most boys with CPP& V: E6 c5 z+ W, a) F' `: O. C. v
may have a central nervous system lesion that is
, r. B4 q/ F @7 S5 sresponsible for the early activation of the hypothal-
5 Q* j& y4 r {: g2 ]5 pamic pituitary gonadal axis.1-3 Thus, greater empha-/ h5 ^7 c9 J7 k
sis has been given to neuroradiologic imaging in
* D6 ^! J3 A* q# l) r$ iboys with precocious puberty. In addition to viril-
! l$ S3 k4 B8 `% C* }# Kization, the clinical hallmark of CPP is the symmet-
5 ~8 e& O. r$ _rical testicular growth secondary to stimulation by4 ?; E* t. a3 z4 ~5 G
gonadotropins.1,3
; S/ D; I9 m8 l' d: O. ]. eGonadotropin-independent peripheral preco-
r) N! A8 Z& T/ X, Ecious puberty in boys also results from inappropriate
: v: I# p9 M5 Jandrogenic stimulation from either endogenous or/ \# A/ P# _3 q, f" `
exogenous sources, nonpituitary gonadotropin stim-
$ n7 @& t. x _2 y4 mulation, and rare activating mutations.3 Virilizing
/ k9 K2 g; }4 F$ W3 Xcongenital adrenal hyperplasia producing excessive
) U3 n: S& w" X0 Y: l; C; F% p3 Yadrenal androgens is a common cause of precocious
5 @4 ~. q3 H. _( ypuberty in boys.3,4
* u$ E" [+ I& t; OThe most common form of congenital adrenal
3 z/ T9 J4 r& d2 u& J1 Ohyperplasia is the 21-hydroxylase enzyme deficiency.4 L- `; w: x# i4 A- O9 q
The 11-β hydroxylase deficiency may also result in6 L" i& V, p$ e& t! @( D
excessive adrenal androgen production, and rarely,
- L" u0 h) n* e dan adrenal tumor may also cause adrenal androgen
4 w2 f/ A- z Q, q" hexcess.1,3
4 d! H+ O& s: \7 [8 |. w8 Uat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
& ~1 `" V0 H2 W6 N! J- y542 Clinical Pediatrics / Vol. 46, No. 6, July 2007
" ^7 C3 i" O& P; aA unique entity of male-limited gonadotropin-. R6 K: ~; D/ B) a' w, [" C) \
independent precocious puberty, which is also known0 _! L2 e ^; _7 `# K k' }
as testotoxicosis, may cause precocious puberty at a
0 f' L5 u# A- W! ~5 v& Vvery young age. The physical findings in these boys
K3 {+ d7 f7 L2 ~' F4 @with this disorder are full pubertal development,( `- o' N+ H1 B9 I
including bilateral testicular growth, similar to boys; Z2 `! y% L z. t* ~9 e; u$ |1 t
with CPP. The gonadotropin levels in this disorder
6 t3 {; T4 t% p! L9 x9 Y6 R; m9 I7 _are suppressed to prepubertal levels and do not show0 }3 L2 [ J) Q6 O% ~! X! |. ]3 \2 c2 d
pubertal response of gonadotropin after gonadotropin-0 p- W) @) Z+ D9 D- w; O
releasing hormone stimulation. This is a sex-linked4 q2 O8 R1 K# o8 Q8 _
autosomal dominant disorder that affects only, ^0 `- Y+ l3 Y9 j
males; therefore, other male members of the family
5 w& B( c- n8 @. J8 x3 V( N% s* kmay have similar precocious puberty.3$ {# f( p K6 z1 r W1 m' M
In our patient, physical examination was incon-
: x5 j0 C$ ]1 Vsistent with true precocious puberty since his testi-8 I$ E. ^( e, {
cles were prepubertal in size. However, testotoxicosis
% F, ?% t+ O( r ] Qwas in the differential diagnosis because his father+ j5 h3 T" J- l' ~/ _& h( m5 D
started puberty somewhat early, and occasionally,+ v* u5 i- F5 U: q- G1 A
testicular enlargement is not that evident in the) c) ~6 t8 k w# \
beginning of this process.1 In the absence of a neg-0 L1 X1 s+ ^$ R+ J# h* f. S* r; P
ative initial history of androgen exposure, our+ J- d( v( T" l2 X' S3 q6 A8 w
biggest concern was virilizing adrenal hyperplasia,
* b4 {7 U. S9 F& k5 aeither 21-hydroxylase deficiency or 11-β hydroxylase
' p; C1 e2 ]7 }% q5 k4 g# d% zdeficiency. Those diagnoses were excluded by find-/ o# L6 a7 s+ J( o
ing the normal level of adrenal steroids.4 Z- w R% i/ ]+ e9 s0 M6 W$ I
The diagnosis of exogenous androgens was strongly
& `- K8 [& @7 {: k( A7 ususpected in a follow-up visit after 4 months because- Y, E, K) D3 a2 V3 [
the physical examination revealed the complete disap-
/ v0 ?9 a' C4 |3 L# v7 J6 Gpearance of pubic hair, normal growth velocity, and
; Z* t% A3 O2 [decreased erections. The father admitted using a testos- h" e. Z0 r; c! [
terone gel, which he concealed at first visit. He was
: V4 X" u$ R! N* R; [* uusing it rather frequently, twice a day. The Physicians’
" }, c" a) b- V) j4 v3 M# F- ]Desk Reference, or package insert of this product, gel or
0 n- F1 k& p1 k: Kcream, cautions about dermal testosterone transfer to5 w8 h' Z% ^; E P
unprotected females through direct skin exposure.8 y6 S% k% {5 g Y7 b
Serum testosterone level was found to be 2 times the
w4 E$ `! Y7 @( l5 n [# b3 u4 h$ ~baseline value in those females who were exposed to8 ^: `' X$ i8 \3 i6 U4 n- Q! z5 ?
even 15 minutes of direct skin contact with their male
% v1 r2 E; j: vpartners.6 However, when a shirt covered the applica-
4 |9 {5 x6 t6 Q4 A% |9 {3 btion site, this testosterone transfer was prevented.
8 o' g7 r3 @" P4 P jOur patient’s testosterone level was 60 ng/mL,
7 Z1 G, {4 q( K; F0 K6 Bwhich was clearly high. Some studies suggest that/ B" Z6 o5 j; x: W. D
dermal conversion of testosterone to dihydrotestos-* f5 e% v3 t8 d: L
terone, which is a more potent metabolite, is more5 v8 f8 y" V, @
active in young children exposed to testosterone7 o# ?* b0 I) M- F0 m( D5 S' R
exogenously7; however, we did not measure a dihy-
2 \8 b8 p: Q. t/ M m) ^7 gdrotestosterone level in our patient. In addition to
5 ~, a1 Z1 V. w8 }virilization, exposure to exogenous testosterone in
0 M8 D: Q3 T. O* [! v- m2 ?( ^0 Fchildren results in an increase in growth velocity and; r- \' x1 b0 n+ b
advanced bone age, as seen in our patient.' G1 O# q: B# p& q0 ~
The long-term effect of androgen exposure during( q9 E y6 c8 Z W
early childhood on pubertal development and final1 J5 G9 ?( C9 x- j1 ?. ~
adult height are not fully known and always remain
# g' S2 t% x$ P+ ua concern. Children treated with short-term testos-8 K" D! L, E6 ^5 ^: R, e! Z4 i
terone injection or topical androgen may exhibit some
: v0 S- i" k/ o8 d4 n7 ^acceleration of the skeletal maturation; however, after
2 g) }$ i0 C1 e' k0 @, z0 B' }0 tcessation of treatment, the rate of bone maturation7 C# l0 U7 s+ i6 ~+ V
decelerates and gradually returns to normal.8,9
! a! p+ s/ N, r$ C0 sThere are conflicting reports and controversy
5 x6 v% R2 S4 d; Eover the effect of early androgen exposure on adult9 g/ U4 u1 a! t4 u6 f6 p+ B' C1 \
penile length.10,11 Some reports suggest subnormal6 C) H* C' d2 l+ R n+ I& ?
adult penile length, apparently because of downreg-% m! e4 w# y h8 N" e1 g! b
ulation of androgen receptor number.10,12 However,9 u6 |+ U% L S5 X1 Q% m. b
Sutherland et al13 did not find a correlation between
: ~( y* `! X! }5 t) z. Q0 Wchildhood testosterone exposure and reduced adult
, E, e4 i( T1 h2 m% ^/ K% q* lpenile length in clinical studies.5 [8 E( Z9 j+ u5 S
Nonetheless, we do not believe our patient is
0 C; E% }' S. D8 V5 K8 t4 D* @0 {going to experience any of the untoward effects from
6 n1 e/ S9 [) a% T& ytestosterone exposure as mentioned earlier because
9 Z, F( M( \4 i; R' ^the exposure was not for a prolonged period of time.
) s: j+ F6 S9 L$ EAlthough the bone age was advanced at the time of1 S. X3 Q! a8 p1 m
diagnosis, the child had a normal growth velocity at
6 P$ E9 _, a! I" P+ Vthe follow-up visit. It is hoped that his final adult
+ m4 W! M" G: D; h; Y- _height will not be affected.
( c6 q! h- A) K$ ]: t) j6 hAlthough rarely reported, the widespread avail-( V! i% E- N3 @# W
ability of androgen products in our society may
, E$ v8 k; `' Y* R/ Gindeed cause more virilization in male or female# k+ D7 ]7 T; u/ `2 @6 Q& ?& \" C
children than one would realize. Exposure to andro-# @! T; }9 n5 C8 ^; J! Q2 ?
gen products must be considered and specific ques-
$ `3 _7 i) ~9 @2 }tioning about the use of a testosterone product or
; e, x+ \4 L. ]& M sgel should be asked of the family members during
/ m' g! h$ c) a2 F* Q+ Y1 }, b; }the evaluation of any children who present with vir-
; h. A- ^3 x; ^5 Silization or peripheral precocious puberty. The diag-
' `9 c" _( N" j6 O9 V' m6 qnosis can be established by just a few tests and by
, U/ c+ I: I6 p+ z! C* rappropriate history. The inability to obtain such a
8 C/ z+ Z$ m5 Z- Ehistory, or failure to ask the specific questions, may3 Z" g1 ]; B& R8 c! d# F
result in extensive, unnecessary, and expensive9 z+ V5 R( i5 I
investigation. The primary care physician should be
7 y4 y, Y5 x* V: j5 M% R: V+ @$ haware of this fact, because most of these children. z% s/ K9 i) R) N# \. g
may initially present in their practice. The Physicians’
# f, L! u* I3 I" @Desk Reference and package insert should also put a8 u4 b2 w" ^0 b& V! M3 ^
warning about the virilizing effect on a male or9 u8 L! }. r1 E1 y; t n* b4 N3 r
female child who might come in contact with some-
% c# p+ P0 [* f0 }7 b, jone using any of these products.
$ ]- e8 K, O2 p$ B8 Z9 t4 J7 Z" U' PReferences
" ?0 J/ Y$ s) k5 {4 c* u1. Styne DM. The testes: disorder of sexual differentiation7 L. |8 F, v' c E% ?$ D4 t
and puberty in the male. In: Sperling MA, ed. Pediatric
1 I8 `+ ^- Z6 N9 j! t0 lEndocrinology. 2nd ed. Philadelphia, PA: WB Saunders;7 S9 K( H1 w2 l) G, [: p4 z' j% A
2002: 565-628.
, A) R. Q. E# Z' O6 E2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious/ M: x' J- e3 J" M8 N# o6 ^+ z
puberty in children with tumours of the suprasellar pineal, E) ^( S9 E8 u- D; O* o6 k
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from, x9 \( C! ?$ [2 l4 E, S& `
Topical Testosterone Exposure / Bhowmick et al 5437 Z% z: C5 d: i" [) ]9 V* I
areas: organic central precocious puberty. Acta Paediatr.
& _/ g8 K/ I O6 v7 B2001;90:751-756.0 j, }2 Y6 a" P- q; T! \, ?
3. Lee PA. Puberty and its disorders. In: Lifshitz F, ed.4 Y) G/ T; _* Z# M, R! ^0 ?
Pediatric Endocrinology. 4th ed. New York, NY: Marcel
: h& x+ A/ X* N: l8 i! b$ |+ HDekker Inc; 2003:211-238.
, T- t& k' U0 I/ e! W: }) P' ~4. Yu YM, Punyasavatsu N, Elder D, D’Ercole AJ. Sexual" u7 ?* T3 l6 }. s
development in a two-year-old boy induced by topical
3 W/ n* i* P- {* Kexposure to testosterone. Pediatrics. 1999;104:e23.1 p: S7 F$ ?: L! k" a/ w
5. Greulich WW, Pyle SI, eds. Radiographic Atlas of5 K1 P$ s" M/ L
Skeletal Development of the Hand and Wrist. 2nd ed. a8 M) Q' `) X
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