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is a significant concern for physicians. Central+ h6 D5 u. w3 `; k: h7 b( R
precocious puberty (CPP), which is mediated
, x8 S% l/ r) {" P/ S. A6 o. gthrough the hypothalamic pituitary gonadal axis, has, x" ^! J+ k# G$ ?4 n4 x8 c# T
a higher incidence of organic central nervous system
& g3 y7 E" `; T: L2 i5 olesions in boys.1,2 Virilization in boys, as manifested
2 r& }# s3 _* A0 }by enlargement of the penis, development of pubic3 b2 b& Q# I) `( T1 _6 K8 X
hair, and facial acne without enlargement of testi-' L$ ? Z7 V: D) s5 Y
cles, suggests peripheral or pseudopuberty.1-3 We
0 ]6 Z( c) q# O: qreport a 16-month-old boy who presented with the
6 T3 X: ?8 V: @) zenlargement of the phallus and pubic hair develop-* n: [8 q" g7 b. B) X7 T
ment without testicular enlargement, which was due
( j' h/ q9 v8 E5 A/ hto the unintentional exposure to androgen gel used by
8 f; a2 _( o0 Lthe father. The family initially concealed this infor-
: }: @: v; r# N% R }mation, resulting in an extensive work-up for this3 ~* b5 o! P. u9 D7 ^
child. Given the widespread and easy availability of! V6 }6 K3 s. E7 {- j& r) w0 o$ c9 j5 b
testosterone gel and cream, we believe this is proba-- E& E* \' p+ ?* E7 C* `! t2 z
bly more common than the rare case report in the
! ^9 e, q# L$ n: p9 T& p( cliterature.4+ m5 V" W% i( p2 i% V, `; `, ~6 t; Z
Patient Report4 m/ m* P) z0 M& V
A 16-month-old white child was referred to the
, L, l( H1 ~, B! H8 Cendocrine clinic by his pediatrician with the concern8 J# r9 x- ]5 ]$ h! ?/ p5 |$ U' }2 X
of early sexual development. His mother noticed
( P7 I6 a# `0 q" s$ r( Y! \light colored pubic hair development when he was5 h6 q/ w: x. M) ?1 w/ e5 Y
From the 1Division of Pediatric Endocrinology, 2University of
k+ f" _* R9 b( M; N8 TSouth Alabama Medical Center, Mobile, Alabama.
, N: T, U4 }( Z# NAddress correspondence to: Samar K. Bhowmick, MD, FACE,. m1 O; I8 }+ l0 O# m
Professor of Pediatrics, University of South Alabama, College of- J: A5 y" h/ O: t3 ^4 p
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;* {. g1 \2 A+ H
e-mail: [email protected].
# C3 n& N* n" V; K2 m* h9 oabout 6 to 7 months old, which progressively became0 R9 P9 Z- r( K1 w8 x ?
darker. She was also concerned about the enlarge-2 _+ h+ @7 E* E0 N# I. w
ment of his penis and frequent erections. The child
; @' S6 l# o7 o# L2 b" rwas the product of a full-term normal delivery, with4 ?" W# m& _0 L G# C5 S; b
a birth weight of 7 lb 14 oz, and birth length of8 [9 j' M+ }, G `
20 inches. He was breast-fed throughout the first year
1 Y9 j- e9 D& G0 `4 N; z( `of life and was still receiving breast milk along with
% `, _% q* X9 Q3 a' ~& U6 Z# dsolid food. He had no hospitalizations or surgery,% q4 [6 s# k z, w0 @8 Q
and his psychosocial and psychomotor development
+ F( ^& m, U8 A) vwas age appropriate.2 G9 U; _ J) ~# t
The family history was remarkable for the father,5 D! a1 f& C9 J* L8 K
who was diagnosed with hypothyroidism at age 16,
) d/ K9 [+ W; K; A( o0 ewhich was treated with thyroxine. The father’s- t: o9 x) b' c9 E$ i5 p8 l
height was 6 feet, and he went through a somewhat3 v. C; C6 N/ Q% h- p R
early puberty and had stopped growing by age 14., q! ^ v$ g+ ^1 P: i4 @2 L
The father denied taking any other medication. The! l$ m8 j0 G3 \6 r3 H" I s/ R
child’s mother was in good health. Her menarche# _3 X6 E& c- n+ y/ \* `
was at 11 years of age, and her height was at 5 feet+ A! H' D' X# S) E
5 inches. There was no other family history of pre-
; o) r& L8 t" J& I7 `cocious sexual development in the first-degree rela-
8 `9 k% s) W4 ~" O" ^5 G) J3 \3 ktives. There were no siblings.
/ M, g6 W( ^( `) X5 @Physical Examination3 K ?; ^; U) w, t2 z0 Z
The physical examination revealed a very active,
( z% y) D' C S- W- [3 P X, P5 Xplayful, and healthy boy. The vital signs documented
, T9 G! B2 d& Z! oa blood pressure of 85/50 mm Hg, his length was
* w+ i1 x6 l) \5 j+ M2 f90 cm (>97th percentile), and his weight was 14.4 kg+ Z, R& |' Q1 L! N- b2 k+ s" _. D, f; c& ?
(also >97th percentile). The observed yearly growth
% N0 t8 V _# R! j6 _2 o$ ?velocity was 30 cm (12 inches). The examination of( V0 g& [ s: I# H# h
the neck revealed no thyroid enlargement.
, }+ _- l ~) E4 t: U5 BThe genitourinary examination was remarkable for2 z* t3 j6 {0 c
enlargement of the penis, with a stretched length of4 n1 ^7 X( }9 P4 q6 m( v% t
8 cm and a width of 2 cm. The glans penis was very well
/ U6 P( V+ T5 ?9 cdeveloped. The pubic hair was Tanner II, mostly around
3 h7 I3 J/ L5 R8 v540
; @* u9 c2 R- Y8 |. Z. x& eat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from5 F3 I+ \( g3 j& ]$ k# O/ R" t
the base of the phallus and was dark and curled. The) I" b, e5 ]7 M# O! y% t: X' R
testicular volume was prepubertal at 2 mL each.
, g" M6 z% C: i& P* M5 G5 y$ OThe skin was moist and smooth and somewhat
8 W1 U8 _3 z0 E. F( E" N- t& |, Eoily. No axillary hair was noted. There were no
7 j! V& ]! F$ C; l {5 @0 Oabnormal skin pigmentations or café-au-lait spots.7 {2 ]) D) d0 G
Neurologic evaluation showed deep tendon reflex 2+( K7 N+ P" k+ w, f
bilateral and symmetrical. There was no suggestion2 }# @% q1 S: I0 E- d; y+ y
of papilledema./ v0 ?* X. C( i- T! s6 A9 Q
Laboratory Evaluation# N1 r7 v2 Y7 s$ d
The bone age was consistent with 28 months by
% `4 K9 v K/ C/ ~' a* y" busing the standard of Greulich and Pyle at a chrono-
0 V0 O! |& J7 @9 |5 v- alogic age of 16 months (advanced).5 Chromosomal
& O$ K9 w: C0 K+ S$ ^karyotype was 46XY. The thyroid function test$ J3 Y" i" }3 L" {. {' a1 Z, K
showed a free T4 of 1.69 ng/dL, and thyroid stimu-8 M: N! V/ M0 Y- g
lating hormone level was 1.3 µIU/mL (both normal).! f3 a8 S4 ~" ] ^7 u5 K
The concentrations of serum electrolytes, blood- [1 v7 i+ ?2 t8 K4 ?) J; O8 p
urea nitrogen, creatinine, and calcium all were3 f. b" Q! n6 F K: C$ w0 N
within normal range for his age. The concentration4 P' I/ z) e+ A: G X7 _7 {0 d- G
of serum 17-hydroxyprogesterone was 16 ng/dL
- D6 ?' [' `1 [( [; n(normal, 3 to 90 ng/dL), androstenedione was 20
( J- w( u; N* [0 I3 B9 W) L" p) q4 Mng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-
/ K" `. s @# n7 z, y( Kterone was 38 ng/dL (normal, 50 to 760 ng/dL),
# g" ]2 {2 u* l: e2 j, ]; K2 s, ?desoxycorticosterone was 4.3 ng/dL (normal, 7 to
% m8 B3 l4 j! j; [5 l49ng/dL), 11-desoxycortisol (specific compound S)! Y7 N8 J* U- d& \
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-! f+ W. ` B9 E9 r, ^+ l2 {" R3 p
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total
3 o4 k5 `) q _8 Q4 dtestosterone was 60 ng/dL (normal <3 to 10 ng/dL),
0 Q c; {! f/ pand β-human chorionic gonadotropin was less than
2 X) W# E$ A! ~$ ^$ x6 R, H5 mIU/mL (normal <5 mIU/mL). Serum follicular$ a0 c% {/ T. E* @) @2 x6 b; r7 V
stimulating hormone and leuteinizing hormone8 i p: ?& V5 d5 \6 f
concentrations were less than 0.05 mIU/mL( C( I' b4 U' l4 Z$ u8 k u% u
(prepubertal).
- a" w6 E! p! U7 \3 xThe parents were notified about the laboratory9 M- W8 U- t2 F& y
results and were informed that all of the tests were
# r% f' M; _; g, T! \1 ^; s) Nnormal except the testosterone level was high. The
9 o1 U2 q+ B) ?* _; t: }2 Mfollow-up visit was arranged within a few weeks to. Y4 X' j3 o/ F7 T% ^, a' X
obtain testicular and abdominal sonograms; how-
$ D5 w& p3 @( y, f7 kever, the family did not return for 4 months.
3 z. }+ {+ h! P$ V/ HPhysical examination at this time revealed that the
, o9 V, A. L h; e: S0 vchild had grown 2.5 cm in 4 months and had gained
7 d4 d% J# g) l4 i" V# {5 Q2 kg of weight. Physical examination remained
' J! Q0 }# J/ b$ v" y+ Xunchanged. Surprisingly, the pubic hair almost com-
( V' K; z0 n/ A; kpletely disappeared except for a few vellous hairs at# x( p1 m& C6 I
the base of the phallus. Testicular volume was still 2
6 y0 a. g! Y: f! QmL, and the size of the penis remained unchanged.
; Y: ^+ j* q4 H6 }2 `( z/ rThe mother also said that the boy was no longer hav-
1 o9 t' k* v9 Zing frequent erections.
$ O$ H t0 r5 }Both parents were again questioned about use of
' E! i+ k4 k, S1 z" m2 X' Vany ointment/creams that they may have applied to
% [- P- w4 {1 Tthe child’s skin. This time the father admitted the- {$ U/ a U- x/ e# F: {
Topical Testosterone Exposure / Bhowmick et al 5416 s9 `9 z! H! N4 ]) N6 \
use of testosterone gel twice daily that he was apply-2 G; a+ ~4 _* m/ E6 D- A
ing over his own shoulders, chest, and back area for
/ l, t1 Y) `- u( Y; }6 p1 H2 t9 ba year. The father also revealed he was embarrassed, ^6 t- I2 e9 J7 |, g" b+ w8 x* g t
to disclose that he was using a testosterone gel pre-" k! n; ?3 L ^' N, E8 D0 W( [
scribed by his family physician for decreased libido
1 a! X2 m* c0 _5 w) U2 ?% o: Isecondary to depression.# C/ b4 V W0 W. e ]1 Q. H
The child slept in the same bed with parents.% p. {. m' Y4 m3 I
The father would hug the baby and hold him on his
! T! u+ C! f4 N2 y, Q; k- _7 pchest for a considerable period of time, causing sig-
% N6 V- Z5 x2 [* h8 Ynificant bare skin contact between baby and father.! o9 f1 y( s/ O1 B0 K
The father also admitted that after the phone call,( b ~7 g: U" [
when he learned the testosterone level in the baby' b) m9 Z Y. b% }
was high, he then read the product information: x3 G- [1 M/ }! G7 l7 [
packet and concluded that it was most likely the rea-
; ^8 }( K- d4 I& x) M# l2 F6 bson for the child’s virilization. At that time, they
& ~+ I' l, o0 k }decided to put the baby in a separate bed, and the; y" V$ \: w) c( c y' S! E: _
father was not hugging him with bare skin and had/ S8 t: ]0 h+ e- H K- ]
been using protective clothing. A repeat testosterone
: }! ~" K! A# O, ]' O0 | x, Ctest was ordered, but the family did not go to the' Y; P" n2 ^" b" R) U
laboratory to obtain the test.
- ~! n8 e+ ]5 U5 x' x! pDiscussion
: [: C0 v/ M3 K6 o1 o+ O5 _Precocious puberty in boys is defined as secondary7 @7 l) p' ^; h) A* q
sexual development before 9 years of age.1,47 U- }6 P& w; s8 F' s+ C/ f
Precocious puberty is termed as central (true) when4 \- T7 @( w$ e2 O% y5 ?4 Z9 o
it is caused by the premature activation of hypo-2 l% L @) d* o6 W8 P0 e: E6 G
thalamic pituitary gonadal axis. CPP is more com-
. P) B L% e% \" [; r* ^5 k, Mmon in girls than in boys.1,3 Most boys with CPP/ o! k& d* S, l& e+ C; w& _
may have a central nervous system lesion that is
: ^; u& z' H/ Uresponsible for the early activation of the hypothal-
/ ?2 D. p( p' d7 j# D6 ?+ k, {# q& Gamic pituitary gonadal axis.1-3 Thus, greater empha-
; ?) O- k! y2 S7 [" Psis has been given to neuroradiologic imaging in
6 o* R+ a/ t: V! Mboys with precocious puberty. In addition to viril-
; b0 d# z, |1 J8 Jization, the clinical hallmark of CPP is the symmet-, w# t: _8 t5 Y/ G6 J
rical testicular growth secondary to stimulation by
( U% o: a; W* n+ w% n- @/ p; u1 S9 P4 cgonadotropins.1,3
! F3 G) I: ^) zGonadotropin-independent peripheral preco-2 n# L# l: ?( c& M0 _9 p
cious puberty in boys also results from inappropriate
' P/ i! N& R& J$ M9 z; Z' vandrogenic stimulation from either endogenous or
9 ?3 x& s1 h7 B2 W. |exogenous sources, nonpituitary gonadotropin stim-
% L# j ^$ G0 _# b! R: L, v0 Fulation, and rare activating mutations.3 Virilizing
1 e% \ \$ O# a8 R( pcongenital adrenal hyperplasia producing excessive& n$ v4 f G! a) R
adrenal androgens is a common cause of precocious
g* ~# u( p/ ]1 s2 n+ h4 r0 Bpuberty in boys.3,4# A9 H/ ~/ Y8 P/ F
The most common form of congenital adrenal
9 L) G7 Q Q& z" Z) ^0 ~- Ahyperplasia is the 21-hydroxylase enzyme deficiency., @) ]0 P& [6 ?: m* c* m: }
The 11-β hydroxylase deficiency may also result in: }: c- H7 l' E+ G. Y, V0 Y! ?" Q
excessive adrenal androgen production, and rarely,
$ s' C( N2 s1 L, `an adrenal tumor may also cause adrenal androgen
. c$ z/ ]* t# W. m2 ?excess.1,3) Z5 |" w4 F8 @* i, z7 p
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from; J4 f4 n% K9 z% I6 _ n
542 Clinical Pediatrics / Vol. 46, No. 6, July 2007
8 s i* s0 n& U6 D4 ~8 F7 bA unique entity of male-limited gonadotropin-
# }/ l P2 C2 @+ k U. gindependent precocious puberty, which is also known
5 B$ `+ L" |, [3 r1 o9 ]8 has testotoxicosis, may cause precocious puberty at a7 W4 i2 U# p( B2 f8 m+ m- A0 [
very young age. The physical findings in these boys. J1 d- _; N$ [
with this disorder are full pubertal development,
9 ?6 ^5 s4 `7 ~3 dincluding bilateral testicular growth, similar to boys* u! ^8 c" _" M. r* b( Q' z4 i- t
with CPP. The gonadotropin levels in this disorder
1 q4 X: b* m: Q$ M! B5 E$ fare suppressed to prepubertal levels and do not show0 N: U/ m3 H) [3 I
pubertal response of gonadotropin after gonadotropin-! N$ ?* a" U D% ?# ]
releasing hormone stimulation. This is a sex-linked
: V a( i( r6 u3 I! o5 {$ e, sautosomal dominant disorder that affects only K" u8 f- ~1 j2 ~: n- q, {
males; therefore, other male members of the family
; I" ^9 M' c. S/ {0 K2 K1 Nmay have similar precocious puberty.3
5 ^' Y s) W. L1 N; j5 s& iIn our patient, physical examination was incon-( r( U" Y' |( b; f0 y
sistent with true precocious puberty since his testi-
) h" s: b( A5 Z, ~cles were prepubertal in size. However, testotoxicosis
! i v5 J6 k6 }6 s. x" \6 Fwas in the differential diagnosis because his father
! ?; Q8 z5 N* p9 }started puberty somewhat early, and occasionally,8 R7 ~* Z! T: o; [
testicular enlargement is not that evident in the6 z/ x; p4 f/ M8 j
beginning of this process.1 In the absence of a neg-
7 Q! f4 J0 J; ]+ E- dative initial history of androgen exposure, our
+ w: V" W' f7 C( u. {biggest concern was virilizing adrenal hyperplasia,# S8 [' c4 i, }6 A7 w7 ?
either 21-hydroxylase deficiency or 11-β hydroxylase A m" ~$ D1 d( R! t: g
deficiency. Those diagnoses were excluded by find-' p2 W" b* t9 B, K7 J
ing the normal level of adrenal steroids.
6 H' z0 y2 }4 FThe diagnosis of exogenous androgens was strongly
; \; T) b) l* |; a2 q. m# ^suspected in a follow-up visit after 4 months because" e5 S, [, F, t% u; o0 ~: B$ `8 `- X
the physical examination revealed the complete disap-
5 g$ t. N3 o# D; {7 p5 w# U( v: Hpearance of pubic hair, normal growth velocity, and0 ]# Z5 ^8 c* f. v& I1 i0 ?- { z
decreased erections. The father admitted using a testos-
! f* R6 o, U5 J8 n! i6 Xterone gel, which he concealed at first visit. He was6 S4 s3 W" b, ?3 x1 v
using it rather frequently, twice a day. The Physicians’
# K. Z- i1 z4 [& J ?5 BDesk Reference, or package insert of this product, gel or3 ^6 [% f' M( g" L1 V
cream, cautions about dermal testosterone transfer to
4 e% i( i E J' M% g5 ]unprotected females through direct skin exposure.
9 o! W4 A5 S. L' I* N3 USerum testosterone level was found to be 2 times the! ]- M4 @* O. X- j" d
baseline value in those females who were exposed to
# i4 J1 ^1 {* v( }4 E1 ^! S0 peven 15 minutes of direct skin contact with their male& S% U2 R* k& Y* f6 ^. @/ u1 n4 t) G. B
partners.6 However, when a shirt covered the applica-' R4 U6 c+ O. z0 L5 P3 I0 ?
tion site, this testosterone transfer was prevented.
2 v# o! W7 v+ q; LOur patient’s testosterone level was 60 ng/mL,
+ {2 I9 P1 r5 Owhich was clearly high. Some studies suggest that4 {) M+ C) i S) ~0 V# c
dermal conversion of testosterone to dihydrotestos-
7 ~; Y: A7 |; g# u$ N1 ~! f) G" j8 mterone, which is a more potent metabolite, is more) c$ j/ G3 ]+ c
active in young children exposed to testosterone$ T& o: i: @0 N! \, i* i x6 y! k# w
exogenously7; however, we did not measure a dihy-
1 U2 M3 S7 H& I, I8 J9 Mdrotestosterone level in our patient. In addition to
/ E4 {* ~8 Z6 a, ?virilization, exposure to exogenous testosterone in
" o2 x( d7 r0 ~2 P k$ Y1 }- L, [children results in an increase in growth velocity and2 n6 X7 y1 ^, s5 k
advanced bone age, as seen in our patient.
. f/ I; ?2 C/ N8 B2 _6 V, UThe long-term effect of androgen exposure during4 S/ s% r0 _* Z/ ]( M0 m4 C
early childhood on pubertal development and final! w, @" K3 y7 }
adult height are not fully known and always remain
) L9 }5 A6 W R5 q6 N$ oa concern. Children treated with short-term testos-
* g. Z! V& B' s: [terone injection or topical androgen may exhibit some3 o4 r0 n! x" ^, }+ B- z
acceleration of the skeletal maturation; however, after: Q0 k9 D. Q2 z# Z* N) I' H* Z8 C
cessation of treatment, the rate of bone maturation
5 [5 r2 S: |5 S) \8 ndecelerates and gradually returns to normal.8,9
4 l- N1 v* q7 qThere are conflicting reports and controversy
, z( o. a% I. Kover the effect of early androgen exposure on adult& ~4 D! F: F- |2 c+ U- ~6 w
penile length.10,11 Some reports suggest subnormal# v/ P7 [3 P5 P4 Q' `
adult penile length, apparently because of downreg-
2 R% L3 a7 h( W% ]9 _. I" N' ~ulation of androgen receptor number.10,12 However,5 f N- O( n3 ~) s& \0 V% a' q
Sutherland et al13 did not find a correlation between
8 U. `# Y) z5 w0 zchildhood testosterone exposure and reduced adult7 I( I9 k2 S4 S" i' X0 Q! R
penile length in clinical studies.
" w$ B& ^$ P2 B/ K" uNonetheless, we do not believe our patient is
) b& h4 i% {/ ^7 t" o0 V' Ygoing to experience any of the untoward effects from( j% R8 Q" F' H4 p5 e P: Q6 F, G
testosterone exposure as mentioned earlier because
8 o$ r5 i8 ?* i; S, ^7 B1 v3 kthe exposure was not for a prolonged period of time.) E4 t+ @! {/ N, z, o$ T2 H% E
Although the bone age was advanced at the time of# x0 Q" ]. t! ^, f) c
diagnosis, the child had a normal growth velocity at7 L. n9 z; W( X( b$ e
the follow-up visit. It is hoped that his final adult& w9 U3 U/ s4 J0 w. k" Z
height will not be affected.% s' ^9 I! ]+ O( y) X4 k9 q
Although rarely reported, the widespread avail-
# y& x: {" f# Q$ ]ability of androgen products in our society may
* S) k3 U4 q& s! Q6 C/ ?indeed cause more virilization in male or female9 g- k; o Z5 x) L1 M
children than one would realize. Exposure to andro-
5 Z1 G* J: ?0 h$ n! ~; k9 egen products must be considered and specific ques-5 ]8 a% u" Q( R4 N
tioning about the use of a testosterone product or' ~9 \0 o9 S. X$ D) V
gel should be asked of the family members during0 `1 w7 r5 Z9 Q* V% u# Z* z2 I
the evaluation of any children who present with vir-
8 O4 D j) O/ B" Gilization or peripheral precocious puberty. The diag-% {! h9 V) Q4 I& S3 O' D
nosis can be established by just a few tests and by
( @" y- ` o: w7 U+ T( iappropriate history. The inability to obtain such a
8 ]# m! N# C& d/ P/ zhistory, or failure to ask the specific questions, may
- x' \1 X: Q4 D/ p' B1 ~ I0 hresult in extensive, unnecessary, and expensive
+ S# L% [/ T! o+ p4 s8 g" Rinvestigation. The primary care physician should be
# n3 A# X2 H/ a* p" Iaware of this fact, because most of these children' Y/ P: r6 S: w
may initially present in their practice. The Physicians’1 q5 I Y; ]$ h! x, q' F T
Desk Reference and package insert should also put a
7 F9 V7 n' m1 z# m1 [1 x, vwarning about the virilizing effect on a male or! O3 F# ?) S7 K3 j
female child who might come in contact with some-
) w( E, W0 J& c! Y" l" U Yone using any of these products.
" J( \- v5 V8 N2 KReferences' `2 B" ?& |- i- ?0 s# w
1. Styne DM. The testes: disorder of sexual differentiation0 ~. ^3 p, `- v9 L5 t! e
and puberty in the male. In: Sperling MA, ed. Pediatric
+ L3 n4 o/ e9 a \9 a$ t& {7 ~Endocrinology. 2nd ed. Philadelphia, PA: WB Saunders;( }( o( V' |# X2 l5 \) U5 N* c( m# S
2002: 565-628.1 w& b# ?( _6 \! Z( o
2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious
4 j' T7 c' k* Jpuberty in children with tumours of the suprasellar pineal2 h( ]3 e6 W$ G" a' m* i( S7 [: S# A
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from0 I) y/ N1 K# r6 p u
Topical Testosterone Exposure / Bhowmick et al 543* H6 {7 G4 _7 M
areas: organic central precocious puberty. Acta Paediatr.! I1 Y! E3 v0 b% f: [+ o7 U. ^2 ^/ E2 W
2001;90:751-756.5 g/ m0 E( v. r
3. Lee PA. Puberty and its disorders. In: Lifshitz F, ed.$ x! T$ z/ r1 Q, k/ x8 j
Pediatric Endocrinology. 4th ed. New York, NY: Marcel* Q( D5 R; S+ l8 v$ x
Dekker Inc; 2003:211-238.( H- T" O; X& R$ y- \/ M
4. Yu YM, Punyasavatsu N, Elder D, D’Ercole AJ. Sexual
- R; {* B4 w/ _3 e) F3 ddevelopment in a two-year-old boy induced by topical
! L( J; S+ }$ z, ?exposure to testosterone. Pediatrics. 1999;104:e23.8 k. c& H1 j; q% O7 e; ?5 C( S7 w
5. Greulich WW, Pyle SI, eds. Radiographic Atlas of1 \. g: ?; S% o& l8 }3 v; h3 J
Skeletal Development of the Hand and Wrist. 2nd ed.
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