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is a significant concern for physicians. Central
4 s3 L! j0 q, z- d& q. z6 Nprecocious puberty (CPP), which is mediated6 a0 z0 k! m* n2 J; [ p5 L c r2 c
through the hypothalamic pituitary gonadal axis, has
, L `; J, r( }5 F( Oa higher incidence of organic central nervous system! W; m1 M( P& z
lesions in boys.1,2 Virilization in boys, as manifested
6 c% v5 Z1 h' bby enlargement of the penis, development of pubic
0 v4 g" L; e h4 m9 mhair, and facial acne without enlargement of testi-
: u9 r0 I/ q5 [- s, V8 Ncles, suggests peripheral or pseudopuberty.1-3 We
; u+ M# }* T+ dreport a 16-month-old boy who presented with the
6 O ^$ R8 [9 y- J& |enlargement of the phallus and pubic hair develop-
6 N7 N" g% |* X" N- z0 j% \) W" z' fment without testicular enlargement, which was due
. ]" I: n6 p @. ^to the unintentional exposure to androgen gel used by
& B" S: d+ S( G: l- ?; E9 p- ?the father. The family initially concealed this infor-7 r+ y" i' M9 L9 K5 l4 H
mation, resulting in an extensive work-up for this2 d5 G/ W3 M3 H4 _ t5 G/ F
child. Given the widespread and easy availability of8 E1 N( Q: f1 Y( z
testosterone gel and cream, we believe this is proba-
4 r: \' [8 f& H z- z8 Hbly more common than the rare case report in the! t' C W) H4 h; g* N3 }2 o) v
literature.41 @* P2 I/ q' l: Y: s9 H
Patient Report
1 D+ r; D8 Z+ Y" VA 16-month-old white child was referred to the: I0 N- l3 m+ a
endocrine clinic by his pediatrician with the concern; h* m! A n" U' W3 f) Y
of early sexual development. His mother noticed3 j7 u8 F P2 a2 t/ P& I4 h! G% b9 n
light colored pubic hair development when he was5 D- x/ ]; G, P: N9 _7 F/ b* i
From the 1Division of Pediatric Endocrinology, 2University of, x* ?$ S- c0 @' O% c
South Alabama Medical Center, Mobile, Alabama.
8 Z$ G3 s/ ~3 E' J' D$ NAddress correspondence to: Samar K. Bhowmick, MD, FACE,
' S/ A, e( c$ S3 d0 C2 V, ~2 g+ aProfessor of Pediatrics, University of South Alabama, College of. `, q0 y4 c$ ]* ^9 B2 K
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;
# j3 D* O! _+ e6 je-mail: [email protected].# o1 S8 P* ^* K$ W( l2 M. W# v
about 6 to 7 months old, which progressively became
) `' y! c- S7 J: f+ wdarker. She was also concerned about the enlarge-( R b9 ]' d" |( x$ {# p
ment of his penis and frequent erections. The child" X; G. ~) x* s' m& P: Y+ C2 D1 Y
was the product of a full-term normal delivery, with
4 z( x& q& Y8 O8 K) Z& G/ B( xa birth weight of 7 lb 14 oz, and birth length of
. C2 [7 _4 W* R20 inches. He was breast-fed throughout the first year
; _: q j/ N% ]5 k* C- w. wof life and was still receiving breast milk along with! Z8 \0 C- A: ?- x8 e5 S" X( u
solid food. He had no hospitalizations or surgery,
$ J9 v: ~+ d" e1 b& ?2 Uand his psychosocial and psychomotor development
& x9 P! p7 V5 g. U" z) I9 x _ lwas age appropriate.
& F4 b L4 s/ O/ Y0 t/ ~+ Y. ]! }The family history was remarkable for the father,, ?: G5 X3 S- H7 k+ I
who was diagnosed with hypothyroidism at age 16,
) ~ J% O, J0 x+ ^* ^which was treated with thyroxine. The father’s
9 U! \: U K3 [2 b' Sheight was 6 feet, and he went through a somewhat
, T% Q* z' I1 T+ ^3 yearly puberty and had stopped growing by age 14.
+ A% Z# V6 k: fThe father denied taking any other medication. The1 @+ i* K1 R! p- W: Q0 `, l
child’s mother was in good health. Her menarche* |* ?0 i& i7 }( U- ^
was at 11 years of age, and her height was at 5 feet0 H' z- g9 J( f, @5 W- X
5 inches. There was no other family history of pre-
4 ~4 B4 j. b2 Ycocious sexual development in the first-degree rela-
0 F5 f) F5 _2 z4 u% r" Ctives. There were no siblings.
$ x: o- V4 e% U. \8 m, tPhysical Examination
! z, y/ H' f( w% dThe physical examination revealed a very active,9 c/ J( C: K# h- }$ [. n- S2 P: |
playful, and healthy boy. The vital signs documented0 |% J- J8 |! I
a blood pressure of 85/50 mm Hg, his length was' }( r4 V6 `# l
90 cm (>97th percentile), and his weight was 14.4 kg
0 L% [/ h- x. W( s# _(also >97th percentile). The observed yearly growth6 B6 }5 x: T& f1 F' a$ ?, g) R
velocity was 30 cm (12 inches). The examination of
' ?' \' |9 }" ]" d/ R& [, K3 Tthe neck revealed no thyroid enlargement.0 a. _) V, A% I
The genitourinary examination was remarkable for
5 R& ^9 L$ ~2 m2 F; t, uenlargement of the penis, with a stretched length of
7 ]; w: E9 E4 p2 L6 c0 Y0 A8 cm and a width of 2 cm. The glans penis was very well9 o, ?! R) g# a! w/ e2 Z5 s
developed. The pubic hair was Tanner II, mostly around
4 C! R' O& W' ~6 q. v+ s5 l) q540 [& \+ q' Z0 y. F; w- U( m, k
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
1 T7 Y9 \8 e* s' Othe base of the phallus and was dark and curled. The+ Z6 w: O8 R# d2 b% ^: V/ a4 j' H
testicular volume was prepubertal at 2 mL each.& u9 k t, }6 x7 A0 T- H& L" W/ l
The skin was moist and smooth and somewhat- s) I. M$ \# c. C4 f7 _
oily. No axillary hair was noted. There were no% q& T& X4 P" x' v9 f. o" Y+ I
abnormal skin pigmentations or café-au-lait spots.
! W/ ~/ u0 M9 O- M3 L4 VNeurologic evaluation showed deep tendon reflex 2+2 g0 _1 }) Y4 |! X$ {. g
bilateral and symmetrical. There was no suggestion1 [$ q/ o- d; a' l1 t' c1 V
of papilledema.
, [- ~. s; _3 l; R1 aLaboratory Evaluation
. Z3 ], K) W. N- M# @& [: o9 LThe bone age was consistent with 28 months by
1 y* z. P7 ^3 P; y- F7 e' iusing the standard of Greulich and Pyle at a chrono-( v* L$ t4 A+ U+ f! p" e" C
logic age of 16 months (advanced).5 Chromosomal
/ \" G* ^* A9 y$ |- s+ U7 E) Rkaryotype was 46XY. The thyroid function test$ P, J2 d( y( @6 T) F- g
showed a free T4 of 1.69 ng/dL, and thyroid stimu-
" S% }1 |1 i; e s* z8 P8 z: blating hormone level was 1.3 µIU/mL (both normal).
' @( W. Q) }6 G' S* y7 n% x mThe concentrations of serum electrolytes, blood
6 G3 E* L$ E; T$ [/ purea nitrogen, creatinine, and calcium all were5 x3 w, ?6 ^& s4 F. G
within normal range for his age. The concentration* l) C6 H! `/ h) G# V% T
of serum 17-hydroxyprogesterone was 16 ng/dL
- k$ x( x. ?# r(normal, 3 to 90 ng/dL), androstenedione was 20# O' w3 ?7 |* f9 _3 ?' H
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-
6 R/ i7 ]2 u) w1 jterone was 38 ng/dL (normal, 50 to 760 ng/dL),
0 o& X2 n/ H7 Mdesoxycorticosterone was 4.3 ng/dL (normal, 7 to' x) @! P! y+ h% }0 N
49ng/dL), 11-desoxycortisol (specific compound S)
: {5 a7 q# }' O X* qwas 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-0 C/ O1 D4 D0 v$ Y6 q: T, S
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total
4 K4 A* z! g1 \& i* o7 ttestosterone was 60 ng/dL (normal <3 to 10 ng/dL),
3 A* H) U- R; jand β-human chorionic gonadotropin was less than" }; Y: @3 p7 I) M/ L- r
5 mIU/mL (normal <5 mIU/mL). Serum follicular+ v) U! N' K) @! e
stimulating hormone and leuteinizing hormone; s) I5 a/ x" }" K" ]& ~* d0 k% T
concentrations were less than 0.05 mIU/mL) Y4 o9 s3 m, n. z2 g8 ^
(prepubertal).4 {; y7 N4 H5 F) p: t \! }
The parents were notified about the laboratory
* q* f; v' E# W% r( m' Xresults and were informed that all of the tests were- |9 @8 y- W. E
normal except the testosterone level was high. The
; S. N+ v @7 L) D4 ?follow-up visit was arranged within a few weeks to
5 C+ M- I$ l3 E5 O* fobtain testicular and abdominal sonograms; how-
7 ~8 Q' N) ~/ d7 @9 Hever, the family did not return for 4 months.% ~! @: f* {0 K* Y0 Q
Physical examination at this time revealed that the
/ b0 w5 B7 \5 J# p" I7 Wchild had grown 2.5 cm in 4 months and had gained4 F) q+ N) D/ [0 F& u5 m
2 kg of weight. Physical examination remained
U* C% g4 f( |6 L6 ^' M Nunchanged. Surprisingly, the pubic hair almost com-
* X: k1 z+ T5 g! [3 g7 gpletely disappeared except for a few vellous hairs at: X) s- \7 p0 }4 Z* |1 J m
the base of the phallus. Testicular volume was still 2& p( s5 E7 o1 l9 \
mL, and the size of the penis remained unchanged.1 b6 Y" q" R# k6 X; F
The mother also said that the boy was no longer hav-4 x( P q) T3 \6 P4 t# I# q- o
ing frequent erections.; Q" K2 K7 t, l0 @" w
Both parents were again questioned about use of- S5 f7 q2 ?0 o* p0 r3 `
any ointment/creams that they may have applied to
1 J0 S9 y3 ?' X, g7 q |* @the child’s skin. This time the father admitted the
+ t/ @. e. S- o% GTopical Testosterone Exposure / Bhowmick et al 541- \; I, Q9 V) s0 s' W- r' j6 b; k; W
use of testosterone gel twice daily that he was apply-: ^! M3 E* X& [7 I/ Z
ing over his own shoulders, chest, and back area for
% F' ^& Y0 g0 q4 j* \9 Aa year. The father also revealed he was embarrassed
$ S* R4 C* N; q; U4 Q& ?to disclose that he was using a testosterone gel pre-( Q. \" o9 U6 u6 K4 W7 f9 @
scribed by his family physician for decreased libido# V) l1 L/ T+ d% d/ H9 s7 y9 J1 m
secondary to depression.0 B) a/ o' B& S( n( u7 A( a
The child slept in the same bed with parents.
: I: A( |9 ]9 r# ?8 i/ L& MThe father would hug the baby and hold him on his
( m" {, Q, o0 n1 G" i8 w. i, y. Dchest for a considerable period of time, causing sig-
6 F5 ~2 p, S' h0 lnificant bare skin contact between baby and father.3 E9 g2 h# e' A; J3 O
The father also admitted that after the phone call,
5 p2 N, J g. f! D8 d. iwhen he learned the testosterone level in the baby* ` @+ I: x u y& J& q5 |. L
was high, he then read the product information+ w0 U" ]/ x5 O0 R1 b+ z& p3 @6 F
packet and concluded that it was most likely the rea-5 J* K5 h' W& [; J7 }+ O
son for the child’s virilization. At that time, they
0 S+ J" o" d/ tdecided to put the baby in a separate bed, and the8 H |/ ^4 d9 |! M4 K; R
father was not hugging him with bare skin and had+ B; o- l( c% C* Q: L; }, L
been using protective clothing. A repeat testosterone
) l. S; V; \+ s& ], K8 V$ s; V8 {1 otest was ordered, but the family did not go to the% ]3 u% \ U& i* T9 }5 j
laboratory to obtain the test.! r4 w% Y/ H/ M$ }# A6 j$ l: L, |
Discussion
& t& ^8 G4 Q/ u9 N, YPrecocious puberty in boys is defined as secondary
9 [! y. Y: R9 Z% J( @sexual development before 9 years of age.1,4: b3 D, w2 t/ U4 v$ ^9 |$ X9 Y R
Precocious puberty is termed as central (true) when
! S; k* P8 {! }5 [6 R' @7 Jit is caused by the premature activation of hypo-
& A. b+ H9 q4 f5 ^% lthalamic pituitary gonadal axis. CPP is more com-
8 \" D- z& [3 m* d0 r0 w) A! u& Rmon in girls than in boys.1,3 Most boys with CPP; f( S% e4 C6 ]# v
may have a central nervous system lesion that is' k( p9 W$ Y, U
responsible for the early activation of the hypothal-5 n1 O7 z2 }+ L. G, I
amic pituitary gonadal axis.1-3 Thus, greater empha-
! `, m% ~0 X8 B7 i7 A. h; O& ~3 B5 Esis has been given to neuroradiologic imaging in
! T* |2 F& w6 Qboys with precocious puberty. In addition to viril-
) a/ G+ x- D; jization, the clinical hallmark of CPP is the symmet-, r. L5 W0 ]1 @. f) ]- e% L% d* V
rical testicular growth secondary to stimulation by
2 h: n5 J; I3 ]+ \; z0 fgonadotropins.1,3- E1 V# `3 }. V& T- h
Gonadotropin-independent peripheral preco-, G( B7 F( x& [0 `8 A: C# e4 g
cious puberty in boys also results from inappropriate& a: O: { J4 t/ d$ S/ P+ {
androgenic stimulation from either endogenous or
" \4 B% X0 I9 z Q' s1 Y' m( eexogenous sources, nonpituitary gonadotropin stim-
9 y9 Z- Q& k/ x* L! w8 ~( xulation, and rare activating mutations.3 Virilizing8 R; J" e9 k& N, f! x
congenital adrenal hyperplasia producing excessive
0 I z3 l; q$ s Yadrenal androgens is a common cause of precocious
$ q( _% L4 X. M6 Q3 L) Wpuberty in boys.3,4
" U6 L3 r X8 }The most common form of congenital adrenal f+ \0 c5 P: y2 K7 u
hyperplasia is the 21-hydroxylase enzyme deficiency.! |8 h2 K$ @ h3 ]: x- O$ t# V
The 11-β hydroxylase deficiency may also result in$ ?5 C0 ?' o) D& n6 o
excessive adrenal androgen production, and rarely,& r+ j7 c9 T/ R2 x9 t7 w( w
an adrenal tumor may also cause adrenal androgen
" }( B( L% A# M1 Zexcess.1,3
/ K0 O! `0 L5 bat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from4 a# ?( f2 |, b A
542 Clinical Pediatrics / Vol. 46, No. 6, July 2007
1 @: J- p( c+ q& |8 t' ~A unique entity of male-limited gonadotropin-2 W( N3 x" h: y
independent precocious puberty, which is also known
, p* D5 R: g8 M1 K$ ias testotoxicosis, may cause precocious puberty at a8 B: b3 l8 E0 D$ N5 Q9 w x$ N
very young age. The physical findings in these boys: u$ u- `4 y3 F: R3 o4 O! [ X
with this disorder are full pubertal development,
) |( U6 L% |. B7 p$ U9 iincluding bilateral testicular growth, similar to boys8 P( I8 b% h7 I! P2 e" e
with CPP. The gonadotropin levels in this disorder1 F0 L% N Q& T6 A# N0 P* q
are suppressed to prepubertal levels and do not show
$ g4 a2 A+ I. W; d- Upubertal response of gonadotropin after gonadotropin-
) {4 w! L, t6 ^7 q8 v+ breleasing hormone stimulation. This is a sex-linked' l0 u. p2 N7 G0 W- c8 Z
autosomal dominant disorder that affects only
' I% y. [/ `4 R: @2 Zmales; therefore, other male members of the family+ l# ~9 N8 _/ D' z3 k: J# d! p
may have similar precocious puberty.3
6 |7 p; ~; m: Y6 D8 b" f O9 Z) oIn our patient, physical examination was incon-
' d4 l" W, k0 d" F9 _* U( Zsistent with true precocious puberty since his testi-
1 `- V, ~, Y$ U3 N. mcles were prepubertal in size. However, testotoxicosis
; v4 Q6 ~5 \) s7 v7 e& m( Xwas in the differential diagnosis because his father
, p9 f4 ]! K% w8 F% Z" Ostarted puberty somewhat early, and occasionally,2 T( _8 \2 }& U. v% P! u' M9 Z* ^0 N
testicular enlargement is not that evident in the
& g9 f5 h5 F9 N g) x) t8 wbeginning of this process.1 In the absence of a neg-8 }8 r9 T7 ^% c7 r$ K
ative initial history of androgen exposure, our* b# W* Y0 L. W0 \' N
biggest concern was virilizing adrenal hyperplasia,0 e7 V) b4 J4 I i" b; q. m4 {, N
either 21-hydroxylase deficiency or 11-β hydroxylase
$ q& M l- ~1 q) J% \9 T% adeficiency. Those diagnoses were excluded by find-9 q& ~* t9 H2 O/ A: s
ing the normal level of adrenal steroids.
+ ~$ T/ _* M mThe diagnosis of exogenous androgens was strongly
% ]9 l: k8 `: Q% p! o6 csuspected in a follow-up visit after 4 months because, M; }; ]" X- b# S2 m0 i% w6 H
the physical examination revealed the complete disap-8 Q& O9 e4 l% T+ C6 }
pearance of pubic hair, normal growth velocity, and# a( x" N* l, F! S$ v, Q6 K
decreased erections. The father admitted using a testos-
/ }9 g3 \: G% p, z) K+ hterone gel, which he concealed at first visit. He was
% m9 K. h, f6 m/ @, N8 busing it rather frequently, twice a day. The Physicians’
7 w2 L' M* _8 JDesk Reference, or package insert of this product, gel or, f+ k8 o1 m& r
cream, cautions about dermal testosterone transfer to
; K; y7 p+ ]: n% Z1 D6 uunprotected females through direct skin exposure.- m8 g* l! u" k
Serum testosterone level was found to be 2 times the* P) t! g6 C$ j! j" c
baseline value in those females who were exposed to
, v* P1 z" s) Q: c0 x$ `! Ieven 15 minutes of direct skin contact with their male
$ h# H; q8 r. g* Jpartners.6 However, when a shirt covered the applica-
% M( U4 Q: |. {$ Otion site, this testosterone transfer was prevented.2 O7 {: c5 h7 t$ |) L
Our patient’s testosterone level was 60 ng/mL,7 E$ g. q3 R+ s
which was clearly high. Some studies suggest that
9 Z, B4 T* c @dermal conversion of testosterone to dihydrotestos-5 }8 p8 p) a D. d/ x2 d
terone, which is a more potent metabolite, is more
4 q% ]- L# O7 R+ a; B: ^9 Bactive in young children exposed to testosterone
, Z+ p. _4 Q6 {exogenously7; however, we did not measure a dihy-$ Y; B' H! ^+ m( O; t7 t- E
drotestosterone level in our patient. In addition to
5 P5 c3 H% M' }# P& t+ q' ~" _virilization, exposure to exogenous testosterone in! d& a. i/ m( K% I% Y5 [
children results in an increase in growth velocity and
5 o/ r0 [4 s" z0 Madvanced bone age, as seen in our patient.4 L& z/ q1 y3 k/ l9 Z9 c7 l: P
The long-term effect of androgen exposure during' O6 `4 Y3 P" L/ b! w; H: P
early childhood on pubertal development and final/ X7 C; R8 s& [0 A
adult height are not fully known and always remain
" N' |1 S. n) i* ]" f# g. Ka concern. Children treated with short-term testos-
/ M* |. c' }0 E1 I) t% gterone injection or topical androgen may exhibit some2 _, B2 C+ C, h ~9 o! r7 K
acceleration of the skeletal maturation; however, after
" C9 k( U, A) p4 z3 u: M3 G% R! @$ lcessation of treatment, the rate of bone maturation8 T" ^7 \* ^6 E6 v
decelerates and gradually returns to normal.8,9. ~. x6 C: q. o- v) O$ }& n
There are conflicting reports and controversy i1 h/ O8 ~3 \: ?% t3 d
over the effect of early androgen exposure on adult
( p' H) r6 W2 z. N1 [penile length.10,11 Some reports suggest subnormal/ y0 B& B6 o1 j0 D6 q
adult penile length, apparently because of downreg-" H& h- {% V5 G; M/ _! ?9 y% @
ulation of androgen receptor number.10,12 However,
+ J l* B) k9 k4 t/ ^, H nSutherland et al13 did not find a correlation between. m( k2 d- k4 K9 r) h" n& [$ n
childhood testosterone exposure and reduced adult
/ a, S) ~/ ]7 e9 Lpenile length in clinical studies., G I$ w# I o
Nonetheless, we do not believe our patient is% [1 r8 d0 Z0 e8 e: n3 r
going to experience any of the untoward effects from2 l6 M2 {- x- w. L1 i0 U) e
testosterone exposure as mentioned earlier because
/ [* q5 \) ~2 z" Y# f5 @8 Z! G4 y9 Qthe exposure was not for a prolonged period of time.* c* ^7 k: y; g1 ~) f n
Although the bone age was advanced at the time of
) ^1 d6 m, ]# Q3 S5 c; ldiagnosis, the child had a normal growth velocity at9 |: {. _1 O, z3 C: V) a
the follow-up visit. It is hoped that his final adult. t; r% R$ ] f7 I. J6 l* `. ?6 ^( j1 r
height will not be affected.8 o# }. N8 l$ ^% ^$ n" r' O
Although rarely reported, the widespread avail-; A# i; Y; k" ~% A3 `* s5 q
ability of androgen products in our society may4 I4 ]* i1 Z4 k( S, X1 d
indeed cause more virilization in male or female
. n$ ^* I w. y9 g0 O2 Mchildren than one would realize. Exposure to andro-
; C* \ j! L( _5 tgen products must be considered and specific ques-
% z; o: M G" Z, @! `6 \* @tioning about the use of a testosterone product or- Y5 G4 {1 `* q% ~, ~) s5 `& I
gel should be asked of the family members during0 i; \8 y) ~$ H2 y. v+ u
the evaluation of any children who present with vir-' u: }0 G6 y* [- k" T
ilization or peripheral precocious puberty. The diag-/ |0 H2 u2 O& D' b
nosis can be established by just a few tests and by
% R; p J( A9 j- w1 x. b4 \6 _appropriate history. The inability to obtain such a
1 I% a: i2 {4 B7 V$ e9 U% Nhistory, or failure to ask the specific questions, may
0 ^4 }$ `9 M" k: ]. jresult in extensive, unnecessary, and expensive {7 V) k0 _# V8 |/ Q. ]8 i
investigation. The primary care physician should be9 y' u/ O/ d0 [/ g- y& |* w
aware of this fact, because most of these children
$ p7 ~. |. B l' \$ q* vmay initially present in their practice. The Physicians’
8 K# p$ n" \" ]" i' [2 x' H3 K" \ B& ZDesk Reference and package insert should also put a/ d% Q6 ]' g- E4 Z/ [, [% D, r4 B
warning about the virilizing effect on a male or
( s. G2 ?+ J# ]female child who might come in contact with some-) r* S* R! u" X9 b! p
one using any of these products.
- L' q9 \. H7 R' S% RReferences
) y5 c0 [1 p9 J, S* \- p5 g: I0 r1. Styne DM. The testes: disorder of sexual differentiation
! ~, b# f' A! X2 \+ {and puberty in the male. In: Sperling MA, ed. Pediatric
1 T7 y; ?- ?# c+ a) REndocrinology. 2nd ed. Philadelphia, PA: WB Saunders;
, V' I( Y, M! Z. L- r" v1 a J6 o2002: 565-628.8 N7 T& Q0 v" B3 @$ |
2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious
+ g! G: j1 J+ W& u( s3 H' H, Opuberty in children with tumours of the suprasellar pineal
8 q- ^* T$ K; ~' Lat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from' a1 J* h) d! z* O. i
Topical Testosterone Exposure / Bhowmick et al 543
* d/ L r. F) T2 m$ n0 @9 Qareas: organic central precocious puberty. Acta Paediatr.
( Z2 ~5 D% l @+ S2 f) r* O2001;90:751-756.
/ [9 ^- x, X, y. A: q+ R3. Lee PA. Puberty and its disorders. In: Lifshitz F, ed.
0 q8 t; n6 D6 P9 VPediatric Endocrinology. 4th ed. New York, NY: Marcel7 u7 L6 s+ S6 _& G
Dekker Inc; 2003:211-238.
! R( l4 P, `( g7 b \4. Yu YM, Punyasavatsu N, Elder D, D’Ercole AJ. Sexual0 L( A3 H O8 Q) T8 J. X, `: V
development in a two-year-old boy induced by topical( `, h# X& w: [5 M) p7 z' v7 b
exposure to testosterone. Pediatrics. 1999;104:e23.2 i" f+ l2 Q0 H
5. Greulich WW, Pyle SI, eds. Radiographic Atlas of7 d: E9 O) _" x
Skeletal Development of the Hand and Wrist. 2nd ed.
& c0 N7 f$ a: g& D1 B9 kStanford, CA: Stanford University Press; 1959.
# m; A5 D% ^, Z+ o3 U8 F9 a5 v6. Physicians’ Desk Reference. Androgel 1% testosterone,# J3 o& S% I* `
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