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is a significant concern for physicians. Central- o) L8 V% K0 j5 F7 C
precocious puberty (CPP), which is mediated
% ]5 @+ ]/ h5 w6 rthrough the hypothalamic pituitary gonadal axis, has
0 N- E* w5 a$ [6 f; P8 Ta higher incidence of organic central nervous system
" w: O1 `3 L0 U' v( Jlesions in boys.1,2 Virilization in boys, as manifested. v, }2 C6 X/ E7 g
by enlargement of the penis, development of pubic
5 @- O% k" P. |' m& }& Ehair, and facial acne without enlargement of testi-
* J: a5 R1 y2 G9 Q- B* H8 a$ h- Icles, suggests peripheral or pseudopuberty.1-3 We
) |9 q8 O* d% }report a 16-month-old boy who presented with the( D$ j( g: u) r& X3 V% _
enlargement of the phallus and pubic hair develop-
( M5 c# o+ n) }" f. G+ N8 m- Vment without testicular enlargement, which was due; K5 f0 e$ e8 o0 O; C) T
to the unintentional exposure to androgen gel used by
, x% Z9 N% C1 v3 F0 ^/ ^/ M# Uthe father. The family initially concealed this infor-- G. R& ]7 h3 u b: u) T% r# Y
mation, resulting in an extensive work-up for this9 e4 l/ J/ d8 m# F' P
child. Given the widespread and easy availability of4 M) t* q: W. h) Z0 d$ Q' }
testosterone gel and cream, we believe this is proba-) J7 O' |" C- m: m
bly more common than the rare case report in the
4 }3 B9 q4 R* tliterature.4
! h" S3 P" H# {* f! V/ h: nPatient Report
( u) N4 h+ n: gA 16-month-old white child was referred to the
5 c/ X- X# s1 R2 E/ r, [endocrine clinic by his pediatrician with the concern# m# B5 A! j/ x
of early sexual development. His mother noticed5 s! b5 \; c: ^
light colored pubic hair development when he was
# Z7 y* m7 ?. t4 R+ G% K8 T) rFrom the 1Division of Pediatric Endocrinology, 2University of9 c5 y: G% s$ I. n, \
South Alabama Medical Center, Mobile, Alabama.; r) S9 {- L% B7 x9 i2 |
Address correspondence to: Samar K. Bhowmick, MD, FACE,
' f( {/ Y, B) UProfessor of Pediatrics, University of South Alabama, College of
8 _0 w+ v" k. E* N2 D5 _, @Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;0 ?7 \+ ^8 `/ d/ y
e-mail: [email protected].% G; g. v; B0 u8 L2 W2 Z
about 6 to 7 months old, which progressively became
' N2 ^0 V3 k4 f- s, {$ vdarker. She was also concerned about the enlarge-
& {4 _" N5 ^. w) |! B9 Lment of his penis and frequent erections. The child2 |* @- n0 A' `9 Y5 g
was the product of a full-term normal delivery, with
v! {: A# M* ?) p5 c) y) v0 h! ]a birth weight of 7 lb 14 oz, and birth length of
! R# |" B# d" \8 D7 n+ L20 inches. He was breast-fed throughout the first year- L G3 D. I; ?" M! g& I
of life and was still receiving breast milk along with' V4 W+ ^$ \! T$ H
solid food. He had no hospitalizations or surgery,
8 {. [: p) n; tand his psychosocial and psychomotor development% T9 d$ P" B* I0 S& }
was age appropriate.) m( @# ^5 B/ v8 ~5 {' X' e
The family history was remarkable for the father,
: h1 r. ~- T5 S# ~5 d; q: qwho was diagnosed with hypothyroidism at age 16,
: W+ j. e; s2 s3 Pwhich was treated with thyroxine. The father’s4 m6 r8 H |* O5 G7 Y
height was 6 feet, and he went through a somewhat$ j) x! f1 u9 _! _/ c9 Q! h g* x
early puberty and had stopped growing by age 14.
5 I- `4 t( p8 {6 \( f. bThe father denied taking any other medication. The; V; f0 m. q. n4 U8 F+ L
child’s mother was in good health. Her menarche5 m: x! C& j5 s- G% g' a
was at 11 years of age, and her height was at 5 feet9 [2 T4 c; V% Y* @+ y) O2 L: @
5 inches. There was no other family history of pre-
/ O* Z1 u& J: J, rcocious sexual development in the first-degree rela-
! P' p% Y0 M0 j' Wtives. There were no siblings.. E8 V5 Y: O P' c+ J
Physical Examination
. q" P* p3 S4 D% LThe physical examination revealed a very active,
1 E9 t2 Q9 O5 N6 w. }2 P+ R1 L3 p; g$ ]playful, and healthy boy. The vital signs documented- a* E4 ?2 C+ b! T
a blood pressure of 85/50 mm Hg, his length was1 `% p% J" O) Z( K1 t, `
90 cm (>97th percentile), and his weight was 14.4 kg
: _8 ]6 D( V2 n4 C, X3 y" P6 k(also >97th percentile). The observed yearly growth+ P' ]% C, S7 W3 M; n3 t
velocity was 30 cm (12 inches). The examination of
7 ~' F1 k7 T9 n! O- D8 J. j' |the neck revealed no thyroid enlargement.) C; a2 l" A X6 c$ S+ K; E
The genitourinary examination was remarkable for
, M8 V `9 Y- A* s" eenlargement of the penis, with a stretched length of, P; F$ Z- u3 B$ p0 h
8 cm and a width of 2 cm. The glans penis was very well3 ~! T; d! n8 |6 N* v
developed. The pubic hair was Tanner II, mostly around- l: l N- w& p! @! `
540! O6 c* `' _; k* x1 M/ [
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
6 k9 @' g: V- f7 ^' |8 |the base of the phallus and was dark and curled. The; z1 ~2 v. a8 b& O6 f# }
testicular volume was prepubertal at 2 mL each.
$ o# ?; G+ q, W$ p( v, V$ X) SThe skin was moist and smooth and somewhat
c& O3 d% E$ ^3 b& [$ v( Ooily. No axillary hair was noted. There were no
- \7 X3 H0 g* v9 ?- d* d4 {. Zabnormal skin pigmentations or café-au-lait spots.' a6 O. H: J# x1 l
Neurologic evaluation showed deep tendon reflex 2+) A: B0 {* ?6 k) b
bilateral and symmetrical. There was no suggestion
4 i, B$ K/ y/ A& r6 J f) |4 `. cof papilledema.
+ L6 V" m, V! B# VLaboratory Evaluation
/ V" W4 v5 b E0 o$ k7 y: aThe bone age was consistent with 28 months by
1 d& J1 P( j& D! z% N; y% w, Eusing the standard of Greulich and Pyle at a chrono-9 c' [ c8 d' f7 s, j' B
logic age of 16 months (advanced).5 Chromosomal3 x* C, P. J+ I. b& R- R
karyotype was 46XY. The thyroid function test S* M: R- H; y( |) \- C
showed a free T4 of 1.69 ng/dL, and thyroid stimu-
, f" g* r0 Q* flating hormone level was 1.3 µIU/mL (both normal).! q; _: c) Y( V$ J8 D- Y
The concentrations of serum electrolytes, blood
' R/ ~2 t6 J$ }) ^+ vurea nitrogen, creatinine, and calcium all were% N ^/ D- d6 u
within normal range for his age. The concentration3 S! C0 {" r/ H3 t
of serum 17-hydroxyprogesterone was 16 ng/dL* |1 `; g4 Y) z9 ^) {( ?/ D
(normal, 3 to 90 ng/dL), androstenedione was 20# [# p& N, x5 I" F
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-
' G* k8 q! |% D$ n! oterone was 38 ng/dL (normal, 50 to 760 ng/dL),2 _4 y% l1 K A- |( c7 R2 s
desoxycorticosterone was 4.3 ng/dL (normal, 7 to
& N& O4 v: B" |. T49ng/dL), 11-desoxycortisol (specific compound S)# t) @7 O! N1 Y8 a4 Z' H$ _
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-# @( V+ b+ l s; A' F
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total- H$ U9 o j! L; C9 c( f9 O& K
testosterone was 60 ng/dL (normal <3 to 10 ng/dL),; I$ @# Y. C3 [" S3 u/ b
and β-human chorionic gonadotropin was less than0 x5 ^; N$ X5 i3 V% Q
5 mIU/mL (normal <5 mIU/mL). Serum follicular, n U$ z3 B( p9 q
stimulating hormone and leuteinizing hormone, ]9 X5 s3 T* b. b- B6 z
concentrations were less than 0.05 mIU/mL1 }( a- B1 M. f4 E, Q$ |& G( V
(prepubertal).- \% [% {# l2 U- k- V u4 G8 M, @
The parents were notified about the laboratory
5 x. l, u4 L2 qresults and were informed that all of the tests were3 ~& [( T" ^0 ~, h- }" ^' N
normal except the testosterone level was high. The7 t: o8 s8 N5 A
follow-up visit was arranged within a few weeks to" o0 h" F& P: Y8 Q
obtain testicular and abdominal sonograms; how-
5 @3 f! T9 z5 z. ]3 G# c G# i! \ever, the family did not return for 4 months.
7 [3 G* `! R1 W$ \0 I" m9 O' jPhysical examination at this time revealed that the# l4 ]3 P1 n. V
child had grown 2.5 cm in 4 months and had gained
) s- }) M, t7 p2 kg of weight. Physical examination remained
- _& O! A' i" G9 B" b; Eunchanged. Surprisingly, the pubic hair almost com-
1 J8 j7 \* `: H% U; @+ P2 k3 h. u, N/ ypletely disappeared except for a few vellous hairs at5 S' G- ^6 d$ E7 m' K
the base of the phallus. Testicular volume was still 2
. l" j' m1 A- R# g% H6 `' y* k$ dmL, and the size of the penis remained unchanged.
n: V. l# n7 z, r3 QThe mother also said that the boy was no longer hav-# M. a! G4 i; J6 l2 }" r
ing frequent erections.
1 W' A2 A6 u8 _# D* o2 P0 RBoth parents were again questioned about use of
" ^; ~4 X2 r* ^& b' t, Many ointment/creams that they may have applied to- h% v& H3 T, b8 H
the child’s skin. This time the father admitted the
" O0 i9 V6 z5 r6 Z, \Topical Testosterone Exposure / Bhowmick et al 541
2 G' R; H( y3 i5 i) \' K4 Huse of testosterone gel twice daily that he was apply-; P/ i6 W0 D5 D4 Z3 M
ing over his own shoulders, chest, and back area for
, ?# R; S5 D5 o+ N' xa year. The father also revealed he was embarrassed8 h r7 T8 G. W/ O7 x+ M1 F- l W! n
to disclose that he was using a testosterone gel pre-
* e5 y; J6 ~" i2 d8 y" yscribed by his family physician for decreased libido
" a9 E1 o, ~% F+ G& e, _% f9 l3 O* Dsecondary to depression.
% `# G. k0 b; m# k- fThe child slept in the same bed with parents.6 T9 W, W9 d+ L6 @; Q1 z9 `
The father would hug the baby and hold him on his
' y5 k9 {2 p q# Schest for a considerable period of time, causing sig-! g5 A% O [8 J' G1 E$ L3 k& |/ f- [3 T2 |
nificant bare skin contact between baby and father.
$ s, g# |( _0 J5 f" |: \The father also admitted that after the phone call,7 y' _% `0 y# y8 W
when he learned the testosterone level in the baby1 j8 n% a8 _0 N
was high, he then read the product information4 O' E3 W$ ~! f Q
packet and concluded that it was most likely the rea-1 o; | N' h; D4 F
son for the child’s virilization. At that time, they
, h; A/ K1 Z( u, udecided to put the baby in a separate bed, and the9 {& @% @* ?$ _4 i$ `: |
father was not hugging him with bare skin and had
$ W; ]6 w+ Q* A8 D5 k- Mbeen using protective clothing. A repeat testosterone- _ x7 A: S. Z" Q: j o
test was ordered, but the family did not go to the
2 x. g* I1 P: Z- blaboratory to obtain the test.
7 \# }* v# V+ C1 Z4 BDiscussion) R& e% p3 p) I8 o( ]4 N
Precocious puberty in boys is defined as secondary* L0 U7 ^( Q7 ^ w" i
sexual development before 9 years of age.1,4, v. N: G+ a4 }6 x" I, E
Precocious puberty is termed as central (true) when
9 h/ L* u% [1 p5 zit is caused by the premature activation of hypo-. N) Q! ~: U0 v& P& X
thalamic pituitary gonadal axis. CPP is more com-$ n) M3 J; [- w r3 H& U4 L# g
mon in girls than in boys.1,3 Most boys with CPP
7 b5 U1 l2 ?. K" D _may have a central nervous system lesion that is
# l. B0 Z* F/ w9 Q6 c- Dresponsible for the early activation of the hypothal-
8 W; O$ m" E/ P9 k) O& Iamic pituitary gonadal axis.1-3 Thus, greater empha-
5 I" P% m, L; ]( V8 L' esis has been given to neuroradiologic imaging in' R5 z6 ^$ O; `- ]
boys with precocious puberty. In addition to viril-
' a. V0 |, f f8 D# }ization, the clinical hallmark of CPP is the symmet-
) b% G/ {# k: W: ]4 \rical testicular growth secondary to stimulation by! o( a) U I9 O
gonadotropins.1,3; W! g& ~4 K) A/ `; V/ p* G& y/ u
Gonadotropin-independent peripheral preco-
3 K- c9 A/ M% h: P0 b/ ^; Ycious puberty in boys also results from inappropriate
6 @7 P" t3 ~$ m* f# ?& \) jandrogenic stimulation from either endogenous or
( h: l: j+ Q! t f& W" Uexogenous sources, nonpituitary gonadotropin stim-
8 k6 g2 E: x, ]* }% |2 C( x$ A3 qulation, and rare activating mutations.3 Virilizing
! P4 y I! I- D/ ycongenital adrenal hyperplasia producing excessive
" x; l. n* v7 l5 b0 j, Sadrenal androgens is a common cause of precocious
4 Q5 i! a( C6 e3 S0 i& \puberty in boys.3,4( k u! n# V) }4 X
The most common form of congenital adrenal4 s* [8 o# n, ~+ c/ u. b
hyperplasia is the 21-hydroxylase enzyme deficiency.
( b. A: T: E. p5 u/ \9 ~* iThe 11-β hydroxylase deficiency may also result in
4 A' d) _. B$ Jexcessive adrenal androgen production, and rarely,
* M2 w- y2 ^" f/ M5 m, dan adrenal tumor may also cause adrenal androgen
) P0 s7 ?( z8 |# `! N% _5 Lexcess.1,3
" _. ~+ D' {) f ~4 U8 qat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
, q% h: b+ j) }$ D542 Clinical Pediatrics / Vol. 46, No. 6, July 20073 u* i. b% z6 v0 j( v$ j
A unique entity of male-limited gonadotropin-* s" t4 n( L& X8 Q) q
independent precocious puberty, which is also known
/ t% w7 Q8 d) g- ~+ v6 P5 o* sas testotoxicosis, may cause precocious puberty at a
) M3 g4 a4 h* S6 n' F9 J/ D+ }- Pvery young age. The physical findings in these boys2 p/ {. `' }* E
with this disorder are full pubertal development,
1 \7 Q& L; m+ ]2 U* I& Z! Pincluding bilateral testicular growth, similar to boys
0 D. g3 f3 [# T# A# U! i: @1 Ywith CPP. The gonadotropin levels in this disorder, z% A& H. W- J+ Q
are suppressed to prepubertal levels and do not show
9 E4 G+ ?. T7 E/ upubertal response of gonadotropin after gonadotropin-
/ M! g" m+ r$ {$ N" D, V6 zreleasing hormone stimulation. This is a sex-linked
8 c1 Q% ]4 Q# W) z$ zautosomal dominant disorder that affects only
+ M2 Y; M* W5 U7 O/ @$ s% R; `males; therefore, other male members of the family/ @3 Y+ h- @' f, ]4 H
may have similar precocious puberty.3
3 f) r, K$ Z: H& o% z* D5 qIn our patient, physical examination was incon-3 Q8 o; U# R2 b) b3 u/ p( X
sistent with true precocious puberty since his testi-$ s- ] Q) k T3 p
cles were prepubertal in size. However, testotoxicosis6 P6 S* @# U( D* o+ v% }' d8 Q, S
was in the differential diagnosis because his father- x& p& W5 {- A: O1 X/ E
started puberty somewhat early, and occasionally,0 \4 X& w& ~/ e6 N6 C. Y8 J1 ?
testicular enlargement is not that evident in the
/ }& U: n+ V+ o( [3 c* F3 O4 R+ ebeginning of this process.1 In the absence of a neg-
/ Z1 i# U, B$ native initial history of androgen exposure, our
! P& c/ J0 D4 ?' h6 @- Y% wbiggest concern was virilizing adrenal hyperplasia,
# e n3 G7 b6 m# \) V( P0 Oeither 21-hydroxylase deficiency or 11-β hydroxylase+ { n- u. V& v+ Y; S& I! d
deficiency. Those diagnoses were excluded by find-& M6 a$ w( f; E4 _
ing the normal level of adrenal steroids.
) z( [. h" m: S$ C; l0 r/ @; m# ~The diagnosis of exogenous androgens was strongly6 p, t8 A) o+ O5 O% U8 ?
suspected in a follow-up visit after 4 months because
+ x* M6 J) \# M2 I9 R% C( C& S$ othe physical examination revealed the complete disap-' _+ M& B5 D/ M5 D4 y H
pearance of pubic hair, normal growth velocity, and
7 l; f/ [6 V" E$ D5 _ udecreased erections. The father admitted using a testos-! @2 f. c( w6 h9 P+ n1 B# U! S
terone gel, which he concealed at first visit. He was
7 p1 n p4 }* N) r' rusing it rather frequently, twice a day. The Physicians’& h) v3 h7 [1 i" M# \
Desk Reference, or package insert of this product, gel or
! s' l T5 M$ w) |0 {. q. j% Acream, cautions about dermal testosterone transfer to9 L/ q& f, j9 D" h
unprotected females through direct skin exposure.
. \% X( N J4 r& `$ ?Serum testosterone level was found to be 2 times the2 i" r5 q: I, ]+ |2 c- s# r
baseline value in those females who were exposed to
/ e; }1 x2 d P/ J+ {4 X$ w/ [: beven 15 minutes of direct skin contact with their male
& {8 d$ n5 K" }9 ]- Lpartners.6 However, when a shirt covered the applica-
5 K% {; T, O% w' \! R1 O0 o- i& ntion site, this testosterone transfer was prevented.
) P! d! {% h4 u v6 W+ ^2 K& O, [1 HOur patient’s testosterone level was 60 ng/mL,/ z. s8 |, K1 q- U3 c) d* P( S
which was clearly high. Some studies suggest that
' B) ]( g# k# r" [9 s) t5 Tdermal conversion of testosterone to dihydrotestos-
( ?4 R0 s$ z: Vterone, which is a more potent metabolite, is more
8 B6 U3 [9 H2 @9 v( ~: zactive in young children exposed to testosterone
3 R/ l* M) q( P; iexogenously7; however, we did not measure a dihy-+ m( B- f" u& E4 Q) N& U
drotestosterone level in our patient. In addition to
4 @- y# Z. k+ M; _; \5 Jvirilization, exposure to exogenous testosterone in \. u+ J0 |5 O( H* p. I
children results in an increase in growth velocity and& `/ c8 q# l' e( X
advanced bone age, as seen in our patient.! Y, z$ \1 x% V- @1 ?+ G
The long-term effect of androgen exposure during
& [2 D" j h6 {" q9 G/ c: X+ i j9 ?early childhood on pubertal development and final
) F3 p* U* C% k( K% {adult height are not fully known and always remain
2 C8 K' P! k' D* }a concern. Children treated with short-term testos-% J* x% M. Q/ Y8 V/ B
terone injection or topical androgen may exhibit some7 M9 G1 I7 Y/ s2 ]
acceleration of the skeletal maturation; however, after
) m6 }) N" g1 a) r0 V3 [; q9 Bcessation of treatment, the rate of bone maturation
2 p$ A) b* W3 S9 Zdecelerates and gradually returns to normal.8,9
* I$ j2 V- W; q3 Q9 T& `$ ]/ y6 KThere are conflicting reports and controversy
7 u& ^$ b0 b5 Q. W: Iover the effect of early androgen exposure on adult1 l$ Y8 e( q, b' q& W8 w5 P! j4 n, I
penile length.10,11 Some reports suggest subnormal
2 n! Z1 X% Q/ Q! |adult penile length, apparently because of downreg-
3 }$ `0 m& e/ Oulation of androgen receptor number.10,12 However, U1 V# [+ R7 D$ |& V. d
Sutherland et al13 did not find a correlation between
1 }# Q0 E% _5 d$ qchildhood testosterone exposure and reduced adult* `1 d; s9 Q' y8 e4 B P6 n
penile length in clinical studies.
8 E6 |& F5 o3 s' D( LNonetheless, we do not believe our patient is
: H- n& q1 U2 v& q- z$ a/ Y1 Ygoing to experience any of the untoward effects from
0 U) {- Z+ ~! @4 g8 F$ Itestosterone exposure as mentioned earlier because
4 Z; f1 y4 A2 @; j z4 Gthe exposure was not for a prolonged period of time.* M b9 e! b4 }, T. v7 k% ?* z
Although the bone age was advanced at the time of6 S% Z8 e( A# N6 Q4 H; w# a
diagnosis, the child had a normal growth velocity at v! q" U% P( v* Y
the follow-up visit. It is hoped that his final adult
- S0 [6 E: Y3 Gheight will not be affected.
4 {# Y# {# s( P0 e: F0 \ rAlthough rarely reported, the widespread avail-! p h* h: f. V% X
ability of androgen products in our society may
0 B# U" \5 {/ m1 e9 ]0 zindeed cause more virilization in male or female
2 ?+ l x& c# O8 Jchildren than one would realize. Exposure to andro-6 \5 _$ @! C% H, M3 [
gen products must be considered and specific ques-' T7 k& G$ E; e( ~- u- q2 a* V
tioning about the use of a testosterone product or2 a+ I5 v9 R& R. ]+ j
gel should be asked of the family members during, P2 _+ I# C5 C* m/ V
the evaluation of any children who present with vir-
6 z' h8 O+ x$ A: c$ C1 xilization or peripheral precocious puberty. The diag- f" s! u/ B3 F9 h" U8 S
nosis can be established by just a few tests and by9 d* P$ E1 v6 a5 l- v4 u
appropriate history. The inability to obtain such a/ |3 P8 ], J5 v
history, or failure to ask the specific questions, may
$ b" N( x* _# aresult in extensive, unnecessary, and expensive0 ?6 K u) G4 L$ K& g S" c) [% W
investigation. The primary care physician should be
! w3 ^0 m' o9 |5 t2 `, I+ W4 Y7 Yaware of this fact, because most of these children
5 R$ z% M+ t8 w) R7 Rmay initially present in their practice. The Physicians’
d. e5 V- e' c7 R$ Y3 EDesk Reference and package insert should also put a1 }$ K6 x: U+ {6 T6 T- e* [
warning about the virilizing effect on a male or
4 i: v$ ]3 d4 \8 Z* Z+ ^! Ufemale child who might come in contact with some-
! O" y5 ~; C/ _# R! A# w! {one using any of these products.# G' Q3 M1 ?# F/ H
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1. Styne DM. The testes: disorder of sexual differentiation B( A* S0 v* |) U* D6 i
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Endocrinology. 2nd ed. Philadelphia, PA: WB Saunders;
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2 x, A0 L1 w$ P0 g7 X2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious {- o" Q, S, V; w
puberty in children with tumours of the suprasellar pineal
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6 K5 B( H6 e& o- B% JTopical Testosterone Exposure / Bhowmick et al 543
2 \9 \2 |. j6 l5 {9 x A9 oareas: organic central precocious puberty. Acta Paediatr., Q4 m9 H& H" n( c( ?# M$ z
2001;90:751-756.3 t% }& o! L( b" z3 l. o! o9 S$ ?& u
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Pediatric Endocrinology. 4th ed. New York, NY: Marcel" ~. b4 d; v( n
Dekker Inc; 2003:211-238.
' s/ o/ h& D o# M! P4. Yu YM, Punyasavatsu N, Elder D, D’Ercole AJ. Sexual" m$ t5 H9 g( `/ h+ v/ G% G9 T) R
development in a two-year-old boy induced by topical* P* c3 }6 t- T8 U+ x/ ~; d* ?% I, W$ I
exposure to testosterone. Pediatrics. 1999;104:e23.
; r4 [0 `# t4 J2 X( m) Y5. Greulich WW, Pyle SI, eds. Radiographic Atlas of) ^3 V6 M; ^" l5 j8 R$ a4 k
Skeletal Development of the Hand and Wrist. 2nd ed.. l6 f7 R. y( X$ U- q4 @2 x
Stanford, CA: Stanford University Press; 1959.
$ G/ l+ g+ W! d* B7 ]6 ]' o6. Physicians’ Desk Reference. Androgel 1% testosterone,3 d; T& X/ G& Q+ x5 i9 ^
Unimed Pharmaceutical Inc. Montvale, NJ: Medical
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