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is a significant concern for physicians. Central
2 h# q9 |, d/ b( m0 \precocious puberty (CPP), which is mediated
; |, v h: w: P0 o, p: Z' F6 K4 Bthrough the hypothalamic pituitary gonadal axis, has: B C8 Z6 I. _$ a) _1 r; d0 X
a higher incidence of organic central nervous system
% ]6 N& |& O; A; O# l, d1 D- N; H1 Ulesions in boys.1,2 Virilization in boys, as manifested+ b4 P8 K' X3 G/ x f# `! n
by enlargement of the penis, development of pubic
4 N; k. ^' O! M M8 G+ whair, and facial acne without enlargement of testi-
, t2 P) Q3 n% B9 p, h4 W& Jcles, suggests peripheral or pseudopuberty.1-3 We
/ { R$ E% p) c) g0 ^# X) nreport a 16-month-old boy who presented with the
2 m0 D4 [5 A- \: q. ienlargement of the phallus and pubic hair develop-4 E, i% C# F" u3 p* T+ T
ment without testicular enlargement, which was due% ?) E7 i# ]* h/ _# }2 _; ?
to the unintentional exposure to androgen gel used by
* k% J4 m( v" P/ u M4 nthe father. The family initially concealed this infor-. i; c! ]( X. `7 N& H" \
mation, resulting in an extensive work-up for this: h( R0 t: a3 Z6 Z3 t* d
child. Given the widespread and easy availability of0 {" H4 E. E8 K" p8 f$ L6 [
testosterone gel and cream, we believe this is proba-( J/ W1 u' ?: E1 ]: \5 c; f
bly more common than the rare case report in the
+ T6 C: Y* l$ j4 v" ^! M Pliterature.4! i$ V( e T2 ~7 V. h
Patient Report5 T) `: R8 K S1 k( H1 A; J
A 16-month-old white child was referred to the' b( W& _1 ]0 E/ e/ i5 d: T( K
endocrine clinic by his pediatrician with the concern3 S5 e* T0 q# D' l; }
of early sexual development. His mother noticed& T9 y) z" K$ s. H* ~4 }2 s
light colored pubic hair development when he was
# K8 d# \9 N1 l) L- Z; _! A; JFrom the 1Division of Pediatric Endocrinology, 2University of
: l! P6 l. ~/ V' w9 p: LSouth Alabama Medical Center, Mobile, Alabama.
$ V0 `( i% H! I- x8 ]Address correspondence to: Samar K. Bhowmick, MD, FACE,7 M7 y3 Z, a9 O0 ]. U% N0 \
Professor of Pediatrics, University of South Alabama, College of1 h3 P7 @6 n5 P
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;% }6 e2 t' p% n7 q+ Q& b7 q
e-mail: [email protected].( C$ A2 ?* s; V: w- Q: i
about 6 to 7 months old, which progressively became. V; i, o% H/ b2 D* s4 [6 r" H
darker. She was also concerned about the enlarge-& _: f+ k8 n# U" O: W
ment of his penis and frequent erections. The child
5 p9 g8 J! |# |$ t9 Cwas the product of a full-term normal delivery, with
+ p! \ |; A* ^$ A, Da birth weight of 7 lb 14 oz, and birth length of+ j" J5 Z ?( W7 z, i
20 inches. He was breast-fed throughout the first year( A6 u) i% z7 u- Y
of life and was still receiving breast milk along with
0 N( u3 M5 t% {4 L( m! l8 ?solid food. He had no hospitalizations or surgery,- J2 G1 z, N5 E/ a) W0 n, f; ^' Y$ w
and his psychosocial and psychomotor development
) }: W! t& _8 l" Y1 a, kwas age appropriate.
& o7 G0 _& q8 w# N7 QThe family history was remarkable for the father,
! W" S$ K) g% Q- ?7 V/ v0 Awho was diagnosed with hypothyroidism at age 16,
, W; A/ R" q5 N/ n u0 U4 e2 zwhich was treated with thyroxine. The father’s, i6 @2 E" U" R# Z, y! v6 ?
height was 6 feet, and he went through a somewhat- `+ [) H/ Q7 Z4 P, h
early puberty and had stopped growing by age 14.
5 \( z9 Q( [9 l: b' LThe father denied taking any other medication. The
3 e& E2 d. x# pchild’s mother was in good health. Her menarche
0 S" g( _4 R& b# m; @2 twas at 11 years of age, and her height was at 5 feet
: U3 T" o9 c! w! x& \1 i5 inches. There was no other family history of pre-
- e7 T* f7 s4 r8 i) e* tcocious sexual development in the first-degree rela-
0 Z. }$ N8 q& ]9 r7 e3 Otives. There were no siblings.6 a9 z/ H7 v+ g2 J6 k- ^
Physical Examination
$ G/ \0 Q9 h( TThe physical examination revealed a very active,! a8 q% c* O3 c4 H) B
playful, and healthy boy. The vital signs documented% }5 t- S) j/ u% H
a blood pressure of 85/50 mm Hg, his length was
1 k/ k: L/ _) v90 cm (>97th percentile), and his weight was 14.4 kg
`3 _. v" W4 H) u( C9 j" T(also >97th percentile). The observed yearly growth% | y$ F, ~4 `) ~0 R! N# _" o
velocity was 30 cm (12 inches). The examination of
J/ \& M& F3 Lthe neck revealed no thyroid enlargement.
4 C+ h3 E) H( DThe genitourinary examination was remarkable for; x1 i. @7 `5 M5 d: K2 m
enlargement of the penis, with a stretched length of
- X& P* p- N% \2 H# |. H, |. u( C8 cm and a width of 2 cm. The glans penis was very well
" G8 X& o# h3 ^2 odeveloped. The pubic hair was Tanner II, mostly around8 |/ G8 g& T7 F8 ?2 R0 ^* c
540& W) ~6 Z+ S6 o7 i
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
. C' B4 N* w6 k( Mthe base of the phallus and was dark and curled. The: v4 V! l* \) g% h
testicular volume was prepubertal at 2 mL each.
! a/ y; W3 q4 h! O- x/ E; RThe skin was moist and smooth and somewhat
0 W/ {! B2 J5 [& A/ Roily. No axillary hair was noted. There were no
/ n) r3 N- c+ |% ]$ J0 ~5 eabnormal skin pigmentations or café-au-lait spots.
) k1 W' x9 t) i+ N( qNeurologic evaluation showed deep tendon reflex 2+0 `$ w/ G* q- L7 w, o
bilateral and symmetrical. There was no suggestion n4 ]+ K1 |- s3 e2 ~+ i
of papilledema.: I; E% H; A9 d9 V. Z8 P. ?+ F1 P
Laboratory Evaluation
& S; d0 Y/ P! D- }, x; C3 UThe bone age was consistent with 28 months by
* I. _# f; j5 [& nusing the standard of Greulich and Pyle at a chrono-
$ h$ d7 }5 S) V4 R0 t9 e) _% z! Ulogic age of 16 months (advanced).5 Chromosomal {/ ~' }' {# [$ x
karyotype was 46XY. The thyroid function test
! |( ?' f( ?/ F" |showed a free T4 of 1.69 ng/dL, and thyroid stimu-
0 w* @$ t! q A6 W+ Zlating hormone level was 1.3 µIU/mL (both normal).
s0 ?" ]5 M8 n# xThe concentrations of serum electrolytes, blood
+ B$ S& y* W& Y4 Lurea nitrogen, creatinine, and calcium all were% Y% m3 \+ R1 l8 m
within normal range for his age. The concentration" Z( }, z" [7 e4 X- b
of serum 17-hydroxyprogesterone was 16 ng/dL- f8 J: H: y! b' \" W+ a
(normal, 3 to 90 ng/dL), androstenedione was 20: U8 v* u0 b6 U [1 A
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-" G" V2 J1 Y9 F+ m S
terone was 38 ng/dL (normal, 50 to 760 ng/dL),& }. s& B8 r7 E9 q3 Q
desoxycorticosterone was 4.3 ng/dL (normal, 7 to6 ^! _: {4 ^( j* B
49ng/dL), 11-desoxycortisol (specific compound S)
7 v: _# J& T# \# o' G9 j/ Rwas 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-) K+ o/ h& q* L& O: {: P( ]
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total
9 R: B- T! _9 M2 z' D% {testosterone was 60 ng/dL (normal <3 to 10 ng/dL),6 v6 I( F+ }9 C6 v9 g2 B$ k
and β-human chorionic gonadotropin was less than- I* p+ i& C9 l- m7 J2 m
5 mIU/mL (normal <5 mIU/mL). Serum follicular
# @* i% a% J! C+ bstimulating hormone and leuteinizing hormone$ v, ?; L J+ o0 G# O3 X
concentrations were less than 0.05 mIU/mL
. G1 |: i5 y5 z* i+ l; h(prepubertal).6 g0 G" M6 B, d# D" u1 V U
The parents were notified about the laboratory
/ W' |$ S) m" b! n. p6 A$ Cresults and were informed that all of the tests were
5 s% b% m4 ]( [1 N" Q% Enormal except the testosterone level was high. The+ b8 z) C! A. E9 L+ _2 d4 u
follow-up visit was arranged within a few weeks to
' I4 }, @5 T# v9 Cobtain testicular and abdominal sonograms; how-9 u% k* o# O5 k7 @3 I
ever, the family did not return for 4 months.
- e7 G) ~% p3 F9 ^1 r$ ]% lPhysical examination at this time revealed that the
6 K8 l8 \8 E r* a) d4 O9 Jchild had grown 2.5 cm in 4 months and had gained
- a& D. K7 o+ Z" h: W1 Z2 kg of weight. Physical examination remained
$ ?; r, e0 f" Vunchanged. Surprisingly, the pubic hair almost com-
" O( F3 @9 h! `pletely disappeared except for a few vellous hairs at
1 j7 Q! A3 p8 A; j5 Ithe base of the phallus. Testicular volume was still 2. ]( B( f$ y% U: m
mL, and the size of the penis remained unchanged.
% j" O3 f7 ]* R* `% T0 I9 W4 f ^7 dThe mother also said that the boy was no longer hav- c; s8 W/ A& s, Z
ing frequent erections.7 Q0 \) p; K8 ^0 F$ L
Both parents were again questioned about use of
, U+ r) O' n! p5 P; V1 l% m" hany ointment/creams that they may have applied to8 V- H7 [# L4 ~" ?4 N$ G4 \
the child’s skin. This time the father admitted the# H3 U9 E& [- ?6 }( Y
Topical Testosterone Exposure / Bhowmick et al 541
3 d/ G7 @, ?. Duse of testosterone gel twice daily that he was apply-8 \ e& W z( T# F2 w1 `
ing over his own shoulders, chest, and back area for. d. m6 k" Z: C! H2 E7 y& c; c
a year. The father also revealed he was embarrassed" S0 O9 Z$ f5 W
to disclose that he was using a testosterone gel pre-; O% f U# K- E( w: e5 n8 x( ~
scribed by his family physician for decreased libido4 B$ }) }% S) ~" ^0 h+ J' j
secondary to depression.
7 c; t; y6 Z2 ]7 C% ]The child slept in the same bed with parents.
% p# ^3 p' R! r2 z, i" n+ O7 eThe father would hug the baby and hold him on his
8 x1 c2 X, q; Wchest for a considerable period of time, causing sig-
# n9 ~' Q& }! X3 B* g& inificant bare skin contact between baby and father.
9 N( l6 Q" H; i% t0 m6 JThe father also admitted that after the phone call,0 `$ f. P& T, ^5 I8 R: j
when he learned the testosterone level in the baby' i$ a3 b9 ]1 u: R
was high, he then read the product information5 v, \9 v3 ]! W8 P- }2 f. Z& B, w! H
packet and concluded that it was most likely the rea-
& E) B1 `8 v$ Q, X9 c/ y( } bson for the child’s virilization. At that time, they
: n, v/ g4 s$ [decided to put the baby in a separate bed, and the. y5 `: n# ]% p: s7 q5 o2 L% T
father was not hugging him with bare skin and had
+ A+ w: [( Q- w. Gbeen using protective clothing. A repeat testosterone
# w3 }4 g2 l) e H4 K2 O% btest was ordered, but the family did not go to the
# m/ {! ~9 j0 }- J% |% @laboratory to obtain the test.
1 l; G8 u7 M: |: Y7 y! ?6 `Discussion- r- [! M( [4 S7 t# ?
Precocious puberty in boys is defined as secondary( I6 {5 [4 W0 C( R- b7 |
sexual development before 9 years of age.1,4) h5 F8 _& X$ q9 k- z& Q6 w
Precocious puberty is termed as central (true) when4 {& [- L: m7 _: }
it is caused by the premature activation of hypo-
$ R, z# E; S/ qthalamic pituitary gonadal axis. CPP is more com-
7 B# C! z' N# o6 \! K& M) Wmon in girls than in boys.1,3 Most boys with CPP
+ T8 f. e; x @, B& Umay have a central nervous system lesion that is" q; i+ e' b0 }8 Q( c: S8 T5 Q
responsible for the early activation of the hypothal-& P! q; u$ G( e: p' M
amic pituitary gonadal axis.1-3 Thus, greater empha-0 ?) x+ k) ]3 q' p% ~! j
sis has been given to neuroradiologic imaging in
- F# p9 s6 W1 m' r& I; n: dboys with precocious puberty. In addition to viril-
% u7 d* \8 x/ N# Uization, the clinical hallmark of CPP is the symmet-% b4 a* R0 y) H) d+ X
rical testicular growth secondary to stimulation by
6 H, U$ _& C. A, v7 ggonadotropins.1,3
- |8 M7 m% k6 O" O" X; `Gonadotropin-independent peripheral preco-
- D2 r# E2 g/ E- rcious puberty in boys also results from inappropriate
6 {1 x- {! E( M# v0 F y# a! \! tandrogenic stimulation from either endogenous or
2 g9 G" T _- v: d2 D) [4 X- f+ ?exogenous sources, nonpituitary gonadotropin stim-9 d! X6 t( R; b% s
ulation, and rare activating mutations.3 Virilizing0 y* O6 i3 t+ c4 x3 R; Z! F7 k8 ~
congenital adrenal hyperplasia producing excessive
W# U ~- v i4 Madrenal androgens is a common cause of precocious
q9 s8 p$ n1 g# L% ~puberty in boys.3,4+ E) O6 q( C V& f2 r+ ~! `
The most common form of congenital adrenal
2 b( t$ |2 s- A. L6 T3 `; @hyperplasia is the 21-hydroxylase enzyme deficiency.
2 a" |( }% ~/ o& V9 N7 x2 @. Y% }2 PThe 11-β hydroxylase deficiency may also result in; Y0 t' t6 K) G1 v1 l$ c
excessive adrenal androgen production, and rarely,2 ^. J; {! G! u6 X+ M
an adrenal tumor may also cause adrenal androgen
, l$ k! g" v- }$ Uexcess.1,3
5 t4 i4 E$ J2 `; M) R. S; Gat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
$ N `7 H, B9 I' p* Z% l8 q542 Clinical Pediatrics / Vol. 46, No. 6, July 2007- q$ B: ?: C( |# ~. i. c
A unique entity of male-limited gonadotropin-
. C$ C0 h" Q. T1 V# z/ y; S1 v+ y& L* Vindependent precocious puberty, which is also known' O2 n7 o9 a- i7 k
as testotoxicosis, may cause precocious puberty at a
# f9 E' C" U3 U0 f, @9 Z8 W- Gvery young age. The physical findings in these boys
6 Q4 S9 }* p6 |, f5 H5 w1 J, Cwith this disorder are full pubertal development,! g: `' Q7 f7 a0 N) P
including bilateral testicular growth, similar to boys
0 \0 @5 I% e* n/ t! ^ vwith CPP. The gonadotropin levels in this disorder$ i! Q; t' h& \9 v/ h
are suppressed to prepubertal levels and do not show
' g( {+ P( C# d7 T1 E' spubertal response of gonadotropin after gonadotropin-
; r2 j! H z/ L$ E- j: u4 \. H: T6 qreleasing hormone stimulation. This is a sex-linked
$ b' C8 [# {) Z7 r; k0 Dautosomal dominant disorder that affects only t7 q; g2 F# D% F& b8 h
males; therefore, other male members of the family$ Q0 A& j2 r* E9 s2 p; _
may have similar precocious puberty.3
2 W4 r4 h3 L. `+ rIn our patient, physical examination was incon-
% D. B6 q# E; V5 J+ Fsistent with true precocious puberty since his testi-
; t8 P1 x' q( l# Y {! H+ h) pcles were prepubertal in size. However, testotoxicosis
6 P- ~7 S( d* Q5 T& c- t; Zwas in the differential diagnosis because his father
* d8 f9 R; K8 h4 ]" k( Vstarted puberty somewhat early, and occasionally,
8 p, d2 r: o; q$ V: `testicular enlargement is not that evident in the% v2 M3 G; k5 K5 X ?6 {. v& B
beginning of this process.1 In the absence of a neg-
2 p& o0 R' K5 tative initial history of androgen exposure, our
+ b4 I/ m- e" n; m u& t- v# Fbiggest concern was virilizing adrenal hyperplasia,
' o9 c" M2 y: I* s$ L- q+ m! ^either 21-hydroxylase deficiency or 11-β hydroxylase
8 j3 {8 @: m8 F$ V" kdeficiency. Those diagnoses were excluded by find- F: t. N+ Q; E5 ?& F. f% @
ing the normal level of adrenal steroids.
f% \& H0 a) P5 Z5 P6 |The diagnosis of exogenous androgens was strongly& P" Z4 U$ [4 y0 j" B4 y
suspected in a follow-up visit after 4 months because8 ~5 n+ v3 ^: {& ?# [
the physical examination revealed the complete disap-/ L/ O. n p' O& W
pearance of pubic hair, normal growth velocity, and
6 C2 }& h+ C5 T, F0 `7 Tdecreased erections. The father admitted using a testos-
) h6 B+ A1 ]" l5 E8 kterone gel, which he concealed at first visit. He was$ w2 ]) W! d" J( y2 R
using it rather frequently, twice a day. The Physicians’1 ]' K6 Z$ s X. \0 e
Desk Reference, or package insert of this product, gel or2 D* \. k$ H+ k+ I$ @9 O, Q" T3 g
cream, cautions about dermal testosterone transfer to
3 E, \$ C5 i% V. X; Z6 f# }& `unprotected females through direct skin exposure.( |' m6 W/ n: M# ]
Serum testosterone level was found to be 2 times the* z. K( ?) R5 ?
baseline value in those females who were exposed to4 n9 e2 N# }5 c- j
even 15 minutes of direct skin contact with their male! |0 _& g+ R+ l9 Q* ?5 ]: {6 I
partners.6 However, when a shirt covered the applica-1 D" G& u0 u* \0 ]' W. e. w" O
tion site, this testosterone transfer was prevented.
9 A; w! y: [5 GOur patient’s testosterone level was 60 ng/mL,
1 A, w9 v: Q& E& t. t0 awhich was clearly high. Some studies suggest that
; @. g1 j: F; O# q0 Ndermal conversion of testosterone to dihydrotestos-9 E2 i* U: i# x) N1 R
terone, which is a more potent metabolite, is more
5 C/ N0 q9 k# k5 D" Xactive in young children exposed to testosterone
2 A( v' X6 N6 d$ @$ sexogenously7; however, we did not measure a dihy-
$ r+ ~& z, a8 b4 I( z- _drotestosterone level in our patient. In addition to" e- ?* p, I4 e+ d# k/ y. f2 q" V6 f: q
virilization, exposure to exogenous testosterone in
7 N6 Q9 w% w, X+ S+ Achildren results in an increase in growth velocity and
( J' H$ A/ g* Q9 _advanced bone age, as seen in our patient.3 g; n. {! v# b B/ |
The long-term effect of androgen exposure during$ z- {1 g' b0 d O. S$ I
early childhood on pubertal development and final, k9 X0 `* ~! }4 P+ C+ p
adult height are not fully known and always remain7 m1 ~3 m$ h1 `
a concern. Children treated with short-term testos-
# Q( T! g$ j m0 h4 [$ zterone injection or topical androgen may exhibit some
9 @1 |6 r2 ?2 h8 ]9 y9 P% eacceleration of the skeletal maturation; however, after
# ?* V- k9 d9 Icessation of treatment, the rate of bone maturation2 w1 K4 B3 P6 _" {; R7 [# X
decelerates and gradually returns to normal.8,9( g( O) k5 f9 n( R4 @
There are conflicting reports and controversy2 ?! _4 I0 ^7 {- ], p$ P8 ]
over the effect of early androgen exposure on adult
3 V: T$ {6 D8 h$ F$ [% Lpenile length.10,11 Some reports suggest subnormal6 q4 n2 n" F* w# }. ~% p* U2 Q9 O+ v6 y
adult penile length, apparently because of downreg-1 ?% O7 w% u: q% e
ulation of androgen receptor number.10,12 However,
2 ^. }& r! Q8 r+ xSutherland et al13 did not find a correlation between
& j$ I8 R$ e% G7 P, Pchildhood testosterone exposure and reduced adult
2 S6 O4 P% B2 O7 @3 `: qpenile length in clinical studies.
K8 Q2 V$ S. w9 Q" p* \1 B. L9 rNonetheless, we do not believe our patient is
# `# ~8 A- b$ G4 egoing to experience any of the untoward effects from3 K! z& {9 G( U0 Q ^. `1 K
testosterone exposure as mentioned earlier because
( g/ y6 k0 i" Y& ?! kthe exposure was not for a prolonged period of time.
0 ]7 y6 [7 z x& a* nAlthough the bone age was advanced at the time of9 P3 `0 T! t* ]" [. v: N* _
diagnosis, the child had a normal growth velocity at
* d( N0 q$ G" G6 Bthe follow-up visit. It is hoped that his final adult' T) }2 e3 \" h; e7 L6 k
height will not be affected.
6 o" X. W1 ^" a) dAlthough rarely reported, the widespread avail-
4 ]5 F$ f- Q+ B: G8 D- ~0 K3 j/ fability of androgen products in our society may
& y1 W/ b7 `1 B6 ]7 vindeed cause more virilization in male or female# G+ G' i# M' C- d; d+ q2 G% d/ Z
children than one would realize. Exposure to andro-
/ r+ @: J2 f+ Y3 L% e2 n+ g4 }, pgen products must be considered and specific ques-
# r- _& c) U9 K/ E( L) stioning about the use of a testosterone product or
+ C- ~ }) J2 l, U" Jgel should be asked of the family members during0 _) F W7 D1 V7 f6 T
the evaluation of any children who present with vir-# |/ l+ i5 C+ P% A9 }: w
ilization or peripheral precocious puberty. The diag-8 ?8 w5 x, Z: R; l' T4 Q& m
nosis can be established by just a few tests and by, I* l- d. d0 }/ A% h& J* p4 W
appropriate history. The inability to obtain such a
* O, x* t6 H' ?4 F v' Xhistory, or failure to ask the specific questions, may
0 n5 y) q& K ~8 M4 Eresult in extensive, unnecessary, and expensive5 Q8 P- b. P2 v3 O6 u
investigation. The primary care physician should be
" c0 F: `" S) l; uaware of this fact, because most of these children0 Y- q- N% L+ @. s8 |
may initially present in their practice. The Physicians’
& Z2 W# f6 i6 |6 _Desk Reference and package insert should also put a
5 p& K3 u9 m3 q& E7 Y! w3 S: Pwarning about the virilizing effect on a male or
: u) C2 o) [( N9 u" G: E/ x- Tfemale child who might come in contact with some-: E V2 G. c2 P; [- L- \
one using any of these products.
3 [' G5 q. s/ k& W: N2 ^References
& l5 N7 A7 |2 P) h; }( d6 `4 }! B1. Styne DM. The testes: disorder of sexual differentiation
/ n# F8 {/ Q6 l9 T* F! Gand puberty in the male. In: Sperling MA, ed. Pediatric
' j# Z# ?2 Q3 g4 b- iEndocrinology. 2nd ed. Philadelphia, PA: WB Saunders;
2 [/ c/ Q/ Z- |& Z4 L7 ?2002: 565-628.
( `$ ~& l; c/ n4 |# \/ Z$ P2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious5 h% s: Q0 R0 \6 G* L2 w' V I
puberty in children with tumours of the suprasellar pineal
9 I) P( X, ?* i6 S- _4 T0 Pat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
5 \( c w0 n' ZTopical Testosterone Exposure / Bhowmick et al 543$ r$ @$ f' v$ U; ?1 K
areas: organic central precocious puberty. Acta Paediatr.. t2 A& L3 Z4 B- v3 n
2001;90:751-756.* } G9 N$ p. |
3. Lee PA. Puberty and its disorders. In: Lifshitz F, ed.
. r, e; J7 k( C$ `, `Pediatric Endocrinology. 4th ed. New York, NY: Marcel. e e2 s3 x% U$ M! r
Dekker Inc; 2003:211-238.0 j$ E2 A% y4 A- H# t) Y5 V+ s
4. Yu YM, Punyasavatsu N, Elder D, D’Ercole AJ. Sexual5 H1 J- Z: P9 p: \: n% O$ p. n, |4 `
development in a two-year-old boy induced by topical9 \% S* N! C* O6 u. G
exposure to testosterone. Pediatrics. 1999;104:e23.
+ b- U$ {3 a: p; i+ O5. Greulich WW, Pyle SI, eds. Radiographic Atlas of- R7 v& A1 N1 m [! \' S0 [; S
Skeletal Development of the Hand and Wrist. 2nd ed.6 ~& _, O* m" p* z1 j$ A! X( z
Stanford, CA: Stanford University Press; 1959.
" |: Z. c. \* c% q6. Physicians’ Desk Reference. Androgel 1% testosterone,$ V/ ]0 s- w# F: r( y
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