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is a significant concern for physicians. Central
' c4 u1 ~5 h- m: k m2 R; uprecocious puberty (CPP), which is mediated
' ]# Z; Y1 X4 Nthrough the hypothalamic pituitary gonadal axis, has6 `$ s) c0 o1 d* q* T7 X
a higher incidence of organic central nervous system1 D. ^. j# B. u3 Q
lesions in boys.1,2 Virilization in boys, as manifested
* H7 C& e! |5 v1 `, C* n$ B. Kby enlargement of the penis, development of pubic
- A$ c+ ~" [1 A! V1 jhair, and facial acne without enlargement of testi-
! x1 L2 N- ^% Hcles, suggests peripheral or pseudopuberty.1-3 We
: D; Y7 }4 P5 I: N4 D. ~+ Ereport a 16-month-old boy who presented with the
1 E7 y1 |0 W- |6 N2 e7 [$ Y8 M9 Aenlargement of the phallus and pubic hair develop-1 q+ O, s" _) N1 Y* z
ment without testicular enlargement, which was due8 n: d: W9 L% s' l4 f# A/ w4 R
to the unintentional exposure to androgen gel used by
1 F# S8 _7 w0 T& Athe father. The family initially concealed this infor-3 {8 d- K: ^% R- Q4 x# u
mation, resulting in an extensive work-up for this
& e1 @! p, T2 I" L% rchild. Given the widespread and easy availability of/ l# W0 m/ |* u4 A1 Q1 W
testosterone gel and cream, we believe this is proba-# K; G1 @3 \3 `4 v2 Q0 F
bly more common than the rare case report in the
6 b" U, Q2 n+ G3 t/ p& Xliterature.4/ L J3 z% t8 K' i. V% g6 y0 n5 O
Patient Report
! P; u, a- X8 B% M" O- ~$ K2 Y7 S! KA 16-month-old white child was referred to the* ]% J4 ^& R" p* k1 j
endocrine clinic by his pediatrician with the concern2 Y2 E+ w# \, B( q3 ^& p0 R( @! x
of early sexual development. His mother noticed
* E- O% a6 U$ {' N: s% glight colored pubic hair development when he was" m m$ h4 z& o' o
From the 1Division of Pediatric Endocrinology, 2University of( [* i& x y v% T( c
South Alabama Medical Center, Mobile, Alabama.
0 \* Y$ K2 C" E& ^Address correspondence to: Samar K. Bhowmick, MD, FACE,
/ I% v% g# Y6 Y% B/ o- p5 D! eProfessor of Pediatrics, University of South Alabama, College of
; O* ]& J- Z6 g c6 a3 D4 }, aMedicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;) j5 d, F+ F" O! C9 {4 J) l
e-mail: [email protected].: V- i' @9 x Q0 r) J4 L. N3 o
about 6 to 7 months old, which progressively became
/ c ~) L0 b' E8 Mdarker. She was also concerned about the enlarge-
' |8 K2 b: K! ument of his penis and frequent erections. The child3 i; L! W2 |" L# H, h3 w, m/ [
was the product of a full-term normal delivery, with
* Z% z# |# @2 n4 Ia birth weight of 7 lb 14 oz, and birth length of: T3 ?; r9 I+ v+ [! V! l6 m5 ^/ \- J
20 inches. He was breast-fed throughout the first year
7 O8 S1 P* C( P3 i% Sof life and was still receiving breast milk along with
8 |7 q$ L: _- W3 xsolid food. He had no hospitalizations or surgery,
) n6 M* D7 h3 i0 P# ^and his psychosocial and psychomotor development \1 V( |: Z/ |2 C& v
was age appropriate.
' F k o2 I' p6 jThe family history was remarkable for the father,
) r3 d1 r* N N) x! [& c& qwho was diagnosed with hypothyroidism at age 16,+ [' q3 o" ?5 R, t
which was treated with thyroxine. The father’s, C% R4 L' E* z
height was 6 feet, and he went through a somewhat' _$ l x0 X" Z& Z, a
early puberty and had stopped growing by age 14.
- ^) I# g, n- V S0 q, _; XThe father denied taking any other medication. The, y& r) M S9 x B( h y6 N' o# n: a
child’s mother was in good health. Her menarche1 H8 g* ~7 S! V2 q: h" a
was at 11 years of age, and her height was at 5 feet" {3 J* v; `. Z
5 inches. There was no other family history of pre-* G5 \+ V/ q* {. A
cocious sexual development in the first-degree rela-
1 u2 x8 u8 A- R- L7 J6 @( t* x0 gtives. There were no siblings.
0 f v9 U4 Y4 m% n% U* M9 b0 t/ QPhysical Examination( [- g* ?+ c: {: j0 I
The physical examination revealed a very active,4 y* L+ n9 N# ^+ C7 V" D8 m6 ^
playful, and healthy boy. The vital signs documented
$ c7 x. g. i7 @/ s' k% oa blood pressure of 85/50 mm Hg, his length was
" j1 [0 U* h K/ B+ H: P2 |0 [90 cm (>97th percentile), and his weight was 14.4 kg
" n1 {9 w0 G: e* D! Y+ A(also >97th percentile). The observed yearly growth6 [4 ]7 ^9 l, K7 ]- U- ]( X
velocity was 30 cm (12 inches). The examination of8 I$ I2 o1 h/ i) m( v
the neck revealed no thyroid enlargement.
5 ^7 q8 D4 u2 f' Z8 S1 i' c: {6 iThe genitourinary examination was remarkable for
& ]1 F) D9 `' D. Yenlargement of the penis, with a stretched length of
9 I7 j3 q" j" I! i6 M( F8 cm and a width of 2 cm. The glans penis was very well; G5 x0 J# y: Y: Z; p2 D2 _
developed. The pubic hair was Tanner II, mostly around
' f+ O$ h' b. H, y4 I540
$ Y `( d+ t) ~at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
/ ]6 c3 B8 A9 `1 c7 ^the base of the phallus and was dark and curled. The
/ p8 o' ^, e4 e$ S8 U( Wtesticular volume was prepubertal at 2 mL each.0 q& _+ A" _' Y4 _# b
The skin was moist and smooth and somewhat
7 h5 J* o) e$ w) \$ Q, b; roily. No axillary hair was noted. There were no
) l: N8 s: h/ T! Sabnormal skin pigmentations or café-au-lait spots.7 H5 o! Q! c) g6 A4 k
Neurologic evaluation showed deep tendon reflex 2+& P% e! ]& t- k, Y- N
bilateral and symmetrical. There was no suggestion2 Z3 o2 Y! A1 e8 I
of papilledema.) p0 ~3 g& ]2 j- D% Y3 Y! n
Laboratory Evaluation
0 g1 v o Q1 W: e3 _The bone age was consistent with 28 months by
8 u& T, B# y5 o) Fusing the standard of Greulich and Pyle at a chrono-5 O, S# M6 r; }5 J1 F
logic age of 16 months (advanced).5 Chromosomal
; Q: p! x9 f, x' z4 ]6 Dkaryotype was 46XY. The thyroid function test
1 z, ?; F) M9 x4 w( Dshowed a free T4 of 1.69 ng/dL, and thyroid stimu-$ U B/ _6 S) V0 m& t' F( {7 E
lating hormone level was 1.3 µIU/mL (both normal).
8 S& y0 d- U: m0 A7 RThe concentrations of serum electrolytes, blood
# S- \9 D( j+ wurea nitrogen, creatinine, and calcium all were* S6 O$ ]! U: Y; P
within normal range for his age. The concentration2 R" q2 N6 J2 z/ z- u% B: j T- C8 h
of serum 17-hydroxyprogesterone was 16 ng/dL; {$ ]( A3 F% m' c
(normal, 3 to 90 ng/dL), androstenedione was 20
/ m- X6 a* j" Mng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-) |1 t! Z+ c6 H) f- j6 ?3 y+ Q# u
terone was 38 ng/dL (normal, 50 to 760 ng/dL),- ^6 A! j R( @; b
desoxycorticosterone was 4.3 ng/dL (normal, 7 to
! p$ O5 n3 i9 r: w4 g1 ?49ng/dL), 11-desoxycortisol (specific compound S)
; W( R1 \3 g" e3 D3 iwas 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-. F; A7 c, N- Y6 j1 s
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total
( m. ?7 ?* g' \0 @/ A3 Mtestosterone was 60 ng/dL (normal <3 to 10 ng/dL),
6 E/ @3 ?- O( M8 u; e; Q# zand β-human chorionic gonadotropin was less than& M, |* l/ T) _+ n# u w, C9 e
5 mIU/mL (normal <5 mIU/mL). Serum follicular
6 V- Q% Y8 r0 `# N+ Q( [4 W4 L! C e' `stimulating hormone and leuteinizing hormone* j$ {; w/ y2 ]3 j8 E# b% g) ^* _2 T' B
concentrations were less than 0.05 mIU/mL0 M( K5 G! [: y) g( v
(prepubertal).5 H( ^ ]( A: X Z* v
The parents were notified about the laboratory
/ B+ I6 S r9 C# b5 x* u. r( Yresults and were informed that all of the tests were
$ W6 Y/ S$ @5 F6 |, Qnormal except the testosterone level was high. The
2 s) p/ S; Y& P% r; x& bfollow-up visit was arranged within a few weeks to+ n' q, E' f2 Y! k
obtain testicular and abdominal sonograms; how-
# l1 i& F& }; O0 Q+ T$ \( Uever, the family did not return for 4 months.
/ {+ {+ E" D! G; R0 D* M8 ^Physical examination at this time revealed that the# e6 | U9 @5 C" T
child had grown 2.5 cm in 4 months and had gained
! S& s5 _( w( } n2 T2 kg of weight. Physical examination remained
6 U/ }$ O# m' E/ ^9 c2 |unchanged. Surprisingly, the pubic hair almost com-0 a! M- K9 L9 o! W; P
pletely disappeared except for a few vellous hairs at
. |0 I( s- X2 Y4 O$ f; Y6 ^the base of the phallus. Testicular volume was still 2+ N# ]; _0 M, j* X
mL, and the size of the penis remained unchanged.
1 s8 \, c2 \1 i6 lThe mother also said that the boy was no longer hav-9 ?' ^- {% ~( Y! k3 u3 ]# X$ a4 a8 |
ing frequent erections.
H" N: E, Q B3 BBoth parents were again questioned about use of m7 w7 u( v- S7 _7 J
any ointment/creams that they may have applied to: k1 u8 A k6 q _
the child’s skin. This time the father admitted the
7 k* E- |- L4 b: y- {Topical Testosterone Exposure / Bhowmick et al 541
, o* {8 V2 h' I+ wuse of testosterone gel twice daily that he was apply-
% z7 b, s e, ~ing over his own shoulders, chest, and back area for
$ f; Z( _+ F+ |- L8 L7 M: n6 Ka year. The father also revealed he was embarrassed
9 L9 k% d& r$ Bto disclose that he was using a testosterone gel pre-
4 [1 v4 I9 y9 ^# r% hscribed by his family physician for decreased libido/ l/ K* o/ O2 q0 F! [
secondary to depression.
9 a7 P& E e! o' k9 ZThe child slept in the same bed with parents.
# ^8 b( m$ e3 f4 V6 }The father would hug the baby and hold him on his8 |. K9 ]# V; B3 b/ `/ q$ |2 ~
chest for a considerable period of time, causing sig-! T( Q" s1 n$ U; d' W9 k1 W1 C
nificant bare skin contact between baby and father.. b7 m* o( V3 A u! J6 R9 J+ p
The father also admitted that after the phone call,
- [) ?( n! y7 v* n9 N) rwhen he learned the testosterone level in the baby
7 E) [- H9 ]. r7 Swas high, he then read the product information* P' ^5 D+ z, P3 e# V! I
packet and concluded that it was most likely the rea-$ _. a) R {5 A9 `& ^$ e4 h9 |% B
son for the child’s virilization. At that time, they
( N% h# j7 r% F7 R, f8 S. M& F; Hdecided to put the baby in a separate bed, and the: [$ u1 U( f( B9 n( b' |" ^
father was not hugging him with bare skin and had7 y1 c& z' Z1 ?* a
been using protective clothing. A repeat testosterone
- I! Y' K4 d1 t: K# Ptest was ordered, but the family did not go to the
& Q+ t) p2 h6 O6 m6 S9 mlaboratory to obtain the test.
4 P% X! ^: T# N. s8 g1 L4 XDiscussion) i# z/ l- u! s1 x
Precocious puberty in boys is defined as secondary3 R7 V: f" g! r/ \9 u
sexual development before 9 years of age.1,4: p& ^* X8 s' {4 N* d
Precocious puberty is termed as central (true) when/ ?5 O( l" i1 l/ _6 F2 m3 @
it is caused by the premature activation of hypo-
5 c# f) R7 Y# gthalamic pituitary gonadal axis. CPP is more com-
2 R+ C" L$ [/ s/ Fmon in girls than in boys.1,3 Most boys with CPP3 b7 \- r3 J7 l7 i1 B! j7 b
may have a central nervous system lesion that is! W; f6 X) S v$ d0 Q( I5 a
responsible for the early activation of the hypothal-2 a7 j$ B$ u) x, o' T+ O
amic pituitary gonadal axis.1-3 Thus, greater empha-
# U5 Q' `9 ], Q) Q7 x! zsis has been given to neuroradiologic imaging in
# E$ j: `0 r/ f# |& O K8 qboys with precocious puberty. In addition to viril-
- _4 |8 u, E2 \6 k% N& T* d0 zization, the clinical hallmark of CPP is the symmet-& C# T+ j7 u2 t; ?6 G0 P+ }6 l8 ]
rical testicular growth secondary to stimulation by
8 B2 Y4 l+ \$ M$ T/ t9 Qgonadotropins.1,33 a+ x& N9 ?5 I# ~8 i9 |0 B
Gonadotropin-independent peripheral preco-
/ E/ }* b3 v! K# p0 P0 dcious puberty in boys also results from inappropriate8 f) f8 C9 `7 B6 a
androgenic stimulation from either endogenous or
( u! Q2 j/ S, P0 x$ v. }( c' Sexogenous sources, nonpituitary gonadotropin stim-
) t5 p4 l, U; p! r: J) z) uulation, and rare activating mutations.3 Virilizing
" k! P' Z6 w. t! o0 {- wcongenital adrenal hyperplasia producing excessive; z( z4 v* L9 ]2 ~4 f; _9 {+ b
adrenal androgens is a common cause of precocious
! \7 Z' y$ B$ s+ Lpuberty in boys.3,46 x( ^) @! g: u, B: ^
The most common form of congenital adrenal
" }% d' {; [9 P7 ? f; H8 N, v8 P7 uhyperplasia is the 21-hydroxylase enzyme deficiency./ q* d+ X8 S; Q1 J0 [7 i
The 11-β hydroxylase deficiency may also result in- v5 X6 \6 p% F; q8 N2 c
excessive adrenal androgen production, and rarely,/ T' I2 |1 a% |8 j; }1 g
an adrenal tumor may also cause adrenal androgen
0 Y0 \( i! l( o4 E' o/ L. Dexcess.1,3
+ f- [- q3 q9 s/ i- n! T6 zat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
8 t! f4 c- {7 v. W W542 Clinical Pediatrics / Vol. 46, No. 6, July 2007
0 n, ~; F' \. h$ W. S5 ?- RA unique entity of male-limited gonadotropin-
- u; e3 _+ Z4 s- o% m/ Z5 b8 q) H( Y) @independent precocious puberty, which is also known
5 C5 d/ }$ I/ A) l' z" f5 bas testotoxicosis, may cause precocious puberty at a) b- Q% M0 J6 u+ t2 X% c" T6 y% a$ y$ B
very young age. The physical findings in these boys; e4 Z% K- i& c3 Q W
with this disorder are full pubertal development,
& q% Y8 j- u8 h3 t' f/ Wincluding bilateral testicular growth, similar to boys: y% n% v; {# m# l
with CPP. The gonadotropin levels in this disorder0 v/ z9 _" h5 F6 K i6 l4 C
are suppressed to prepubertal levels and do not show
0 k* c% Y6 b) l3 j/ l( R% r. lpubertal response of gonadotropin after gonadotropin-
/ B1 W) K Y0 zreleasing hormone stimulation. This is a sex-linked
; ]4 z) l, n+ W+ G5 Yautosomal dominant disorder that affects only
; _( @* G! l& f% Jmales; therefore, other male members of the family
8 S3 Z& }7 O2 c, Tmay have similar precocious puberty.3
6 c; l* d: g1 q0 c5 }7 ^5 l# c: ~In our patient, physical examination was incon-
# O# W) A- G0 ksistent with true precocious puberty since his testi-
/ x5 e6 Y8 x. ]4 [6 l6 Y- {" Qcles were prepubertal in size. However, testotoxicosis
9 \$ Q4 f! F5 L3 y2 T3 y; o$ n; J! ]was in the differential diagnosis because his father( a1 ^( O' k$ Z9 \# w
started puberty somewhat early, and occasionally,
0 u& [! H, d- _+ D( y1 k6 r! ^( O7 Ctesticular enlargement is not that evident in the- }8 C& i# `+ c \' p
beginning of this process.1 In the absence of a neg-4 i( J! M' P# {* W
ative initial history of androgen exposure, our
! q7 q# {& D; Zbiggest concern was virilizing adrenal hyperplasia,9 N$ U6 l: }3 T# M; T
either 21-hydroxylase deficiency or 11-β hydroxylase
F9 ^& {( [7 v# j# ~# s6 ?( r+ |deficiency. Those diagnoses were excluded by find-% X. d( k1 V1 b# F: o' W) V/ q9 B
ing the normal level of adrenal steroids.6 }9 `& `+ h0 ^# ?
The diagnosis of exogenous androgens was strongly
* G$ G5 y: r. }suspected in a follow-up visit after 4 months because. Q2 D% c. m& e. z7 e7 {2 |# g/ U
the physical examination revealed the complete disap-2 ^5 @$ ^1 X/ L% s: z
pearance of pubic hair, normal growth velocity, and
2 H/ [( A4 F( j# |decreased erections. The father admitted using a testos-
0 d5 U' A! r' g( Nterone gel, which he concealed at first visit. He was
) \7 X/ Q P. I( U7 K3 J4 u) D8 {using it rather frequently, twice a day. The Physicians’2 I- Y' C! j, \0 u
Desk Reference, or package insert of this product, gel or
" ^; K' C) _$ @$ b, ccream, cautions about dermal testosterone transfer to% {! C D {* V* t" K: g
unprotected females through direct skin exposure.4 [% F# ]% S8 e1 K$ s
Serum testosterone level was found to be 2 times the8 w% _4 L w9 X# f4 }
baseline value in those females who were exposed to( {: W6 W/ K; [% d! E, M
even 15 minutes of direct skin contact with their male4 s: R6 s+ P9 N- @
partners.6 However, when a shirt covered the applica-7 T% A$ z- |; G
tion site, this testosterone transfer was prevented.; o4 D' \7 S+ m8 o' c+ |8 _
Our patient’s testosterone level was 60 ng/mL,
) i2 q8 r- _4 r/ P4 Q- kwhich was clearly high. Some studies suggest that
) f$ M E6 @+ [$ Z6 G l9 C' f& ddermal conversion of testosterone to dihydrotestos-* r3 H: a5 p. Y2 k) f7 q
terone, which is a more potent metabolite, is more# D- u( r0 P4 y# V6 \) T9 p
active in young children exposed to testosterone
1 J) A2 ^* u- W4 n1 q3 t8 W) {exogenously7; however, we did not measure a dihy-, I' }& i s I1 c! F
drotestosterone level in our patient. In addition to
q/ f( J6 w4 n3 h( [ |0 Z4 Wvirilization, exposure to exogenous testosterone in
: I* \# \! o( |! E7 s' m' r+ @children results in an increase in growth velocity and; j+ ^3 D( X! {3 k# C7 i
advanced bone age, as seen in our patient.5 S+ D! d$ a$ P, F% i0 e1 ~ S
The long-term effect of androgen exposure during
- {( r* j, v3 E& u; fearly childhood on pubertal development and final4 V9 h& L, z3 S# O
adult height are not fully known and always remain
- Z$ s, g, b0 i* L2 L7 V% E5 c; Na concern. Children treated with short-term testos-
G! {1 j4 y. o! ]terone injection or topical androgen may exhibit some
% C$ }/ A* c& I9 R! g- a2 T, Eacceleration of the skeletal maturation; however, after
3 q0 l6 S& n; d3 Ycessation of treatment, the rate of bone maturation
* ^% @. o$ S, Ydecelerates and gradually returns to normal.8,9
6 A5 U' S& k2 k% \There are conflicting reports and controversy
, a; S: m, i- i" w+ nover the effect of early androgen exposure on adult* [ \/ ~8 Y+ h5 F
penile length.10,11 Some reports suggest subnormal* i/ ]. `4 `+ l F4 D
adult penile length, apparently because of downreg-
* m9 w# B9 K" y) ^" D4 y$ sulation of androgen receptor number.10,12 However,- z* u; P+ X5 [: j/ H
Sutherland et al13 did not find a correlation between
, b+ [8 Y5 V' c. a% tchildhood testosterone exposure and reduced adult. n" Y8 K* T6 d3 z6 Z, X
penile length in clinical studies.
0 T: f! m' a. }) p t7 J$ G! d# DNonetheless, we do not believe our patient is
) Q' W0 D* _# J& I7 Z" hgoing to experience any of the untoward effects from
; A$ K7 B2 z$ k: c( K0 c5 itestosterone exposure as mentioned earlier because2 M7 X* F/ _9 X& W9 E& P6 s
the exposure was not for a prolonged period of time.3 H; A$ H! W8 i) ?
Although the bone age was advanced at the time of
- j4 m1 H, o5 C, Sdiagnosis, the child had a normal growth velocity at" u1 ]' \) e& D3 ]7 Y$ ^
the follow-up visit. It is hoped that his final adult
( Q0 s/ J2 w' ~* K) Theight will not be affected.; H3 L, @9 }6 d& E6 W' ^( i
Although rarely reported, the widespread avail-5 S8 b& d4 k/ I8 ~
ability of androgen products in our society may
8 ?" s Z5 }8 [; U0 findeed cause more virilization in male or female
6 v$ ^9 S6 m/ v3 Qchildren than one would realize. Exposure to andro-. X9 \: E7 Z& @& ?3 b F
gen products must be considered and specific ques-$ t: N1 @! `! O& y+ Q$ [2 x
tioning about the use of a testosterone product or
3 p# M J/ K% J0 g6 dgel should be asked of the family members during
/ h4 e$ j. Y( L- F6 uthe evaluation of any children who present with vir-
: K, a0 `5 I6 t( a: iilization or peripheral precocious puberty. The diag-
) K& o, u( l1 C P2 gnosis can be established by just a few tests and by
2 o2 s; S4 Z$ [1 w0 Yappropriate history. The inability to obtain such a5 ]( n3 X% Q R( ?. N4 R( w
history, or failure to ask the specific questions, may5 W) o. t2 u% P$ f
result in extensive, unnecessary, and expensive% V+ I' z) P+ s i2 F# K
investigation. The primary care physician should be% y6 {% G( z5 v' Z
aware of this fact, because most of these children
4 y9 _: Z$ g& e4 lmay initially present in their practice. The Physicians’
% z, s. _, a9 u& |Desk Reference and package insert should also put a& w% f6 h `8 E2 D. [6 P! f6 | n
warning about the virilizing effect on a male or/ o* j5 A0 M5 P5 Q' |% @* |. a
female child who might come in contact with some-
0 Q- ?) z0 D wone using any of these products.4 o1 {% Y! h9 N) O1 ]/ x/ s, u
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! ?5 z2 ]$ P0 f4 q( t2002: 565-628.
0 e0 @ D \, M. Z+ G5 F7 |* A2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious
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3. Lee PA. Puberty and its disorders. In: Lifshitz F, ed.
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+ F' v, }( s0 E4 J3 u! ^Dekker Inc; 2003:211-238.
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development in a two-year-old boy induced by topical
! @+ g1 y: H! w! @exposure to testosterone. Pediatrics. 1999;104:e23.9 o, t0 i( ^- ^4 I
5. Greulich WW, Pyle SI, eds. Radiographic Atlas of
+ u+ w2 V4 k& d2 [% vSkeletal Development of the Hand and Wrist. 2nd ed.. a5 S% i; R8 ^) d
Stanford, CA: Stanford University Press; 1959.' z7 R8 }7 g# w/ P: S2 ], m8 l
6. Physicians’ Desk Reference. Androgel 1% testosterone,2 X3 W3 G. w( \4 z2 y
Unimed Pharmaceutical Inc. Montvale, NJ: Medical
3 C9 G. d- t0 N5 j9 |; dEconomics Company, Inc; 2004:3239-3241.; p/ t) l) _ H- V6 P- }/ K! S
7. Klugo RC, Cerny JC. Response of micropenis to topical
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