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is a significant concern for physicians. Central
7 b( y0 ?0 @. C8 U% \% R. xprecocious puberty (CPP), which is mediated
' u( s2 q: k8 N, `# pthrough the hypothalamic pituitary gonadal axis, has& Y+ W0 K+ f( A
a higher incidence of organic central nervous system, r' h7 C7 H- P: H9 q' T
lesions in boys.1,2 Virilization in boys, as manifested
. y. t9 S# G* i0 Oby enlargement of the penis, development of pubic' ]( ]8 ?- l) q) ~
hair, and facial acne without enlargement of testi-
7 \! Q9 j _+ l7 F3 z: Ocles, suggests peripheral or pseudopuberty.1-3 We6 ^# y. v5 |3 \4 p. I* I: {
report a 16-month-old boy who presented with the
5 s2 @6 v4 |5 ~enlargement of the phallus and pubic hair develop-
0 n! m& {, N+ k! e8 H |ment without testicular enlargement, which was due
% q: M: U3 r6 y: Hto the unintentional exposure to androgen gel used by
2 [2 H4 d R/ K8 I3 e' {, u: O% P2 Athe father. The family initially concealed this infor-
3 d( Q& p! }. gmation, resulting in an extensive work-up for this
! y* |; B8 `7 A1 |$ k$ ?- _4 Y7 f! Wchild. Given the widespread and easy availability of
& I8 y% r4 _2 I- L" A) gtestosterone gel and cream, we believe this is proba-0 X; e0 s) k" U
bly more common than the rare case report in the
2 a# Z" R8 X) ?$ M4 K' {3 P9 Bliterature.4; D& Q5 Z" B9 p) A9 q' ]
Patient Report
A/ ? R; r4 j8 c* LA 16-month-old white child was referred to the% A0 m3 K- y3 i
endocrine clinic by his pediatrician with the concern
* b0 A# n/ X9 m, O" l2 X9 hof early sexual development. His mother noticed
' Z' C1 @* }6 w. q7 Clight colored pubic hair development when he was
8 Z& v, j A' l9 H" t" A6 z- H' G, ^From the 1Division of Pediatric Endocrinology, 2University of; ^0 P' Z9 x: ~* V' k
South Alabama Medical Center, Mobile, Alabama.- S% d: W% G) ?5 _. r7 [
Address correspondence to: Samar K. Bhowmick, MD, FACE,4 ^7 H0 q: J5 |, C7 ~# @7 h# Z
Professor of Pediatrics, University of South Alabama, College of% L2 {; o7 S7 F8 y9 p& Q ], S7 S
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;5 r$ p# }6 G3 B2 {5 ]7 K1 Y
e-mail: [email protected].
1 J# l* E; I! N+ H0 r3 e5 Jabout 6 to 7 months old, which progressively became
% @* o0 a% c3 d$ Q- ]+ Z3 M Jdarker. She was also concerned about the enlarge-' ^9 a: k% a) K; k
ment of his penis and frequent erections. The child+ i" j6 F! T# P* C1 s
was the product of a full-term normal delivery, with; I3 z( v3 B; k3 j: j* W* ]
a birth weight of 7 lb 14 oz, and birth length of
" n* [% @% R2 h) K! ?% j& ^ p20 inches. He was breast-fed throughout the first year
6 N4 q4 B+ m- r2 @5 q( }of life and was still receiving breast milk along with2 e6 p+ P! a! c( O# \
solid food. He had no hospitalizations or surgery,
% p9 l6 u$ F6 q9 Vand his psychosocial and psychomotor development V9 y7 |4 A, A7 G+ \: j) t7 a6 s( l
was age appropriate.
9 H9 y( {1 i8 o: Q/ f- R7 G$ c qThe family history was remarkable for the father,9 `% v0 u$ b# H) M8 m$ l. H$ t
who was diagnosed with hypothyroidism at age 16,1 m7 v# ^0 J# [- U8 C5 e7 M! M
which was treated with thyroxine. The father’s. v: X# z9 h! h2 e
height was 6 feet, and he went through a somewhat4 T" v7 d/ J i4 {1 T0 G2 | I
early puberty and had stopped growing by age 14.- [) o ~# B4 G
The father denied taking any other medication. The' V, l, X/ z- ]) x4 {" \
child’s mother was in good health. Her menarche% V, d( b5 C& V8 l# \
was at 11 years of age, and her height was at 5 feet: O" a: U$ `) @2 l n4 \1 y d
5 inches. There was no other family history of pre-: M1 w' p) D) T- T9 \
cocious sexual development in the first-degree rela-- y& r1 s8 T) J, Q( Z. o: Q- j- I
tives. There were no siblings.
3 n/ b! c: _ ?Physical Examination
( G, ?# `& l5 l. U/ aThe physical examination revealed a very active,
) }, r1 J3 X' C& J) oplayful, and healthy boy. The vital signs documented
/ @8 H; A/ ]* E2 N) U2 l2 u/ _a blood pressure of 85/50 mm Hg, his length was
4 p4 M: U. F4 W/ V5 p, @90 cm (>97th percentile), and his weight was 14.4 kg
/ N8 I6 F$ {' J(also >97th percentile). The observed yearly growth" ?1 f) |+ O- k* h: S' S
velocity was 30 cm (12 inches). The examination of
( t {0 l! s+ b; A4 V! c+ ithe neck revealed no thyroid enlargement.! I6 S0 U8 A+ w8 `! M) G: [. [5 [
The genitourinary examination was remarkable for
. O! `. |4 v/ ?; Zenlargement of the penis, with a stretched length of
- Q4 M# w3 U( }9 J) v5 ^# U6 i8 cm and a width of 2 cm. The glans penis was very well
5 S/ }$ W9 @/ W$ r: g$ u$ \! v0 mdeveloped. The pubic hair was Tanner II, mostly around8 z2 ]7 m s) s& [
540( i1 X; k# ?$ O5 G( Q
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from; F: W G' T: j# r7 \: V
the base of the phallus and was dark and curled. The
3 T4 y- }. ?. J' Qtesticular volume was prepubertal at 2 mL each. h) }8 d4 f# J1 ], O4 e& j) l
The skin was moist and smooth and somewhat# D7 r4 Y4 y/ d* a) a6 S
oily. No axillary hair was noted. There were no
2 W W! a/ ? [' eabnormal skin pigmentations or café-au-lait spots.
# @2 \- d. W( ^6 V9 FNeurologic evaluation showed deep tendon reflex 2+
6 }6 C4 S& C# rbilateral and symmetrical. There was no suggestion* r0 \ C: `$ P: G/ T" w8 Y. J) k
of papilledema.2 y' E2 n! R+ z6 L
Laboratory Evaluation1 m, C8 q6 ^5 H: E- N
The bone age was consistent with 28 months by% l: T. Q+ s. r! N) c0 ^6 P* ^
using the standard of Greulich and Pyle at a chrono-7 I' e: I9 k/ w5 L) M$ V
logic age of 16 months (advanced).5 Chromosomal
9 c3 Y. }7 T: g1 Ikaryotype was 46XY. The thyroid function test
& k1 G, S V! G, T1 eshowed a free T4 of 1.69 ng/dL, and thyroid stimu-
: g% E# u/ _/ @ P& ~7 |6 klating hormone level was 1.3 µIU/mL (both normal).
! p* }0 a( p6 xThe concentrations of serum electrolytes, blood7 G$ Q. b* K7 Y& t5 A
urea nitrogen, creatinine, and calcium all were2 ]6 ~) h3 U$ n) s
within normal range for his age. The concentration
! _" T$ ?2 g1 W, m; C$ @of serum 17-hydroxyprogesterone was 16 ng/dL. L/ D: M3 s6 p7 f& x- h4 a
(normal, 3 to 90 ng/dL), androstenedione was 20
: D D; f4 T, P5 h+ |ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-
( m8 a& Y- g, ~ e0 D2 ~terone was 38 ng/dL (normal, 50 to 760 ng/dL),
2 B: h& J \$ f7 z+ q6 C, Zdesoxycorticosterone was 4.3 ng/dL (normal, 7 to! V& x0 E) D& x% S$ r" a( G
49ng/dL), 11-desoxycortisol (specific compound S)
( W. f& k) L' s3 `5 g/ }was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-
$ x" V8 r9 b' b' A, z% D# Ftisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total
" A% R, F" V& @) x! ], h h4 V2 Otestosterone was 60 ng/dL (normal <3 to 10 ng/dL),9 z' ^3 q. f. C, m# J& |, `4 ^$ f
and β-human chorionic gonadotropin was less than
$ f/ Q7 |. _' w$ f T5 mIU/mL (normal <5 mIU/mL). Serum follicular) V5 @/ E6 |) U7 C' g$ l) v3 x
stimulating hormone and leuteinizing hormone1 J% S' a* ?$ A g
concentrations were less than 0.05 mIU/mL
2 [/ M0 q& I( M; p, g7 j(prepubertal).+ S* _7 t! k; A- ]
The parents were notified about the laboratory
7 j9 |5 i ]. x4 x$ Bresults and were informed that all of the tests were
9 R5 C1 I7 V& R9 ]normal except the testosterone level was high. The! v3 H' q3 A* }
follow-up visit was arranged within a few weeks to
& j; U. g4 |+ k, }* @7 }/ o+ A* `- wobtain testicular and abdominal sonograms; how-0 A7 w$ z6 l. u Y2 ~/ a5 i
ever, the family did not return for 4 months.- _3 t* v5 j8 B
Physical examination at this time revealed that the
( v- v6 q5 B; M4 Y) L7 | }5 L4 Xchild had grown 2.5 cm in 4 months and had gained
' j" V$ X2 q! \! @9 h2 kg of weight. Physical examination remained; Y$ S$ U& O1 p
unchanged. Surprisingly, the pubic hair almost com-, X" n0 F3 d7 d
pletely disappeared except for a few vellous hairs at
8 v. f* d2 Q* O0 m3 w) fthe base of the phallus. Testicular volume was still 2$ M! P+ N' V- T9 u, r2 O m
mL, and the size of the penis remained unchanged.
$ M8 N2 f4 D! X7 t! b3 qThe mother also said that the boy was no longer hav-7 v; Z9 b$ ~" F% O* F# W
ing frequent erections.0 a8 J; E z6 Z0 a# h
Both parents were again questioned about use of
# ?" q, l- S. h7 i. x* Y2 s% P' vany ointment/creams that they may have applied to5 M# g2 T* O2 K0 L1 J+ ^ ?
the child’s skin. This time the father admitted the( y) X$ K! m& x6 r9 x( g; O
Topical Testosterone Exposure / Bhowmick et al 541
9 J+ n7 N7 \. Q: }+ i. G& l( Xuse of testosterone gel twice daily that he was apply-
- J) Y" c! V8 R+ z' F2 W/ a, L0 l6 ^ing over his own shoulders, chest, and back area for- t6 |9 g/ z# C( z* @( B8 I
a year. The father also revealed he was embarrassed& H" H" R& D6 f: Q. X s) @
to disclose that he was using a testosterone gel pre-
8 Y: e; f( l$ z) ?0 @4 M* l7 i3 {1 Vscribed by his family physician for decreased libido
8 w8 V# x4 B% E2 b1 bsecondary to depression.: ?0 o. p) p( x- p8 l1 J) R: v3 I
The child slept in the same bed with parents.
2 d6 L, m) F4 C ~- i& R, x/ cThe father would hug the baby and hold him on his
: H' V! O4 ~) H7 I; ~+ K, q$ Xchest for a considerable period of time, causing sig-) S+ X/ W. m9 @
nificant bare skin contact between baby and father.. p1 }2 n4 R- d& E& R. ~4 R A
The father also admitted that after the phone call,
U: s) b0 C/ G; Y6 k% ]- q- [when he learned the testosterone level in the baby
8 b# H! Q) k& \ awas high, he then read the product information
! |( Y8 C" W2 q! R7 H* spacket and concluded that it was most likely the rea-+ T4 z% ]; P1 v8 z4 f' L
son for the child’s virilization. At that time, they. T$ D" R+ }8 g- {/ P6 G/ H8 Z
decided to put the baby in a separate bed, and the' F% l6 t) L% H. W4 j( r5 u& ]
father was not hugging him with bare skin and had
8 v3 M" w, d: D3 abeen using protective clothing. A repeat testosterone0 _1 L3 A& W7 U+ J9 h, I4 V* B
test was ordered, but the family did not go to the! F- o; d$ v) X0 C0 D. N
laboratory to obtain the test., s# E. U- d; X5 a1 K+ L
Discussion
( C5 H4 Q6 U& y1 \: `! dPrecocious puberty in boys is defined as secondary, ?* P7 y! S5 o* [2 Z
sexual development before 9 years of age.1,4$ Q* \6 P) D! M/ v
Precocious puberty is termed as central (true) when; _5 G$ D# ^; f! P
it is caused by the premature activation of hypo-
+ o2 B" g: K* @ W2 s: {1 Ythalamic pituitary gonadal axis. CPP is more com-
8 l3 c+ ?5 t' t+ j N* Omon in girls than in boys.1,3 Most boys with CPP* c+ {( d4 W3 b1 ` n' \: G( p0 I. a
may have a central nervous system lesion that is0 m3 X$ H' Q8 h4 e0 |
responsible for the early activation of the hypothal-0 R, R; [. i; e) ]6 f6 [
amic pituitary gonadal axis.1-3 Thus, greater empha-8 J) o8 M+ j1 O5 a7 Z
sis has been given to neuroradiologic imaging in
E, v. D9 r4 lboys with precocious puberty. In addition to viril-+ g: M" L" s- k% k% r" U; i
ization, the clinical hallmark of CPP is the symmet-8 m2 R. t; f1 `
rical testicular growth secondary to stimulation by3 B1 T3 u6 h% J0 P) A( V8 `) T7 C- K6 e
gonadotropins.1,3
6 Z4 r+ O, ~. m# H) }' f+ LGonadotropin-independent peripheral preco-
6 U% T0 ? s1 B4 W: X9 gcious puberty in boys also results from inappropriate
! K7 {9 y6 V1 uandrogenic stimulation from either endogenous or$ o4 c# t, i8 K% U6 w) e! j
exogenous sources, nonpituitary gonadotropin stim-- ?$ ?& y# d: |
ulation, and rare activating mutations.3 Virilizing
9 Q, Z* t8 h( R q8 H% Q; Y1 Wcongenital adrenal hyperplasia producing excessive! b; f& U& h$ S* ?. a
adrenal androgens is a common cause of precocious
; J% K" e; X' w$ ]: {* [8 Ppuberty in boys.3,4+ x7 R2 j& R! l) t
The most common form of congenital adrenal
8 H# a% T5 m1 s3 Hhyperplasia is the 21-hydroxylase enzyme deficiency.
# ]: `+ {$ u |+ z2 kThe 11-β hydroxylase deficiency may also result in
6 Y# }: b; y2 O fexcessive adrenal androgen production, and rarely,' e K' e4 ]- R" r/ r0 O9 O
an adrenal tumor may also cause adrenal androgen
3 ~3 Y( e1 }; n* M. k0 F% Aexcess.1,35 s) ^$ _0 L, H d) `
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from) W V6 F$ [& i8 p" J! l6 X
542 Clinical Pediatrics / Vol. 46, No. 6, July 2007
* n2 L" b0 d% i" p5 ^- q/ m9 EA unique entity of male-limited gonadotropin-$ E' f1 p% j, A0 k6 j
independent precocious puberty, which is also known
1 X" ?7 v2 o2 c3 A* ?- P) t: Kas testotoxicosis, may cause precocious puberty at a. q" S8 M: {: b5 a) P4 V9 ~ y
very young age. The physical findings in these boys
# k o4 z0 [: {) @. e4 i0 b% Ywith this disorder are full pubertal development,
7 h! K2 v1 D. `# W8 Xincluding bilateral testicular growth, similar to boys' j( u3 c2 `) x: i" S+ A
with CPP. The gonadotropin levels in this disorder/ O. C% g4 E. n+ S5 N
are suppressed to prepubertal levels and do not show
: {1 u. u! G& p& B" Z% e4 {; Hpubertal response of gonadotropin after gonadotropin-6 e" Z; w2 r- \2 U: k1 @
releasing hormone stimulation. This is a sex-linked
* g# U/ q/ L* X \& ]+ A+ {autosomal dominant disorder that affects only" Q$ e$ e8 r- v' [8 |
males; therefore, other male members of the family
# Y7 U7 [) r, t! s. \3 rmay have similar precocious puberty.3
" D7 P! x3 u; R$ @) D, c5 _5 x) nIn our patient, physical examination was incon-
`: P f3 w9 r/ e) j6 t6 |9 m) M: ]sistent with true precocious puberty since his testi-
|/ P, c3 X9 ]- Ocles were prepubertal in size. However, testotoxicosis
; w2 e' D* V6 r& V0 X2 Lwas in the differential diagnosis because his father0 p/ C% f" m( q- \' Y+ V
started puberty somewhat early, and occasionally,3 x7 @( J+ J, E4 t; t
testicular enlargement is not that evident in the) O# f- F: C* p' J- l" w
beginning of this process.1 In the absence of a neg-; h- _+ _" V9 ~( s+ C M- ]; K* F5 M
ative initial history of androgen exposure, our% Z. i2 {0 A# N2 Q0 |4 {9 }8 g
biggest concern was virilizing adrenal hyperplasia,
) z, `7 [3 R: i( O. ?6 |either 21-hydroxylase deficiency or 11-β hydroxylase
" x. {: Y2 Y6 G" x3 V# z) Q0 J$ `deficiency. Those diagnoses were excluded by find-
( {) ]" i, ?( R5 e6 e" l: s" S( Q0 H: xing the normal level of adrenal steroids.$ A& X( L; i! b: f7 ?: }* A
The diagnosis of exogenous androgens was strongly
/ a: W, z" P* e7 S9 q9 ysuspected in a follow-up visit after 4 months because' _) Y0 W9 J+ S( I! X& B
the physical examination revealed the complete disap-
2 F) a, j# h, S/ b2 fpearance of pubic hair, normal growth velocity, and) \' f% r2 D# K/ l, P6 I9 i
decreased erections. The father admitted using a testos-; b, H& r5 K. S2 H
terone gel, which he concealed at first visit. He was
$ L1 X' k( R% ^" jusing it rather frequently, twice a day. The Physicians’ S) U3 L7 m/ O. T* G( X
Desk Reference, or package insert of this product, gel or
+ O) }* n j; R) s/ z; mcream, cautions about dermal testosterone transfer to
8 x. v6 B; C% i; z; funprotected females through direct skin exposure.! W; r/ n% v+ _. W, J
Serum testosterone level was found to be 2 times the" a w4 _ z: v( P& p
baseline value in those females who were exposed to
, W3 {2 \) @! U; ?- ~even 15 minutes of direct skin contact with their male# p z( J: K7 E
partners.6 However, when a shirt covered the applica-
7 @! X l* K, ?+ E$ ^# L# etion site, this testosterone transfer was prevented.
( F% D, P: W3 EOur patient’s testosterone level was 60 ng/mL,
$ q, X$ h7 k7 Swhich was clearly high. Some studies suggest that+ ]. K+ A. |: x j/ j/ f, @
dermal conversion of testosterone to dihydrotestos-. b4 m- ^8 b8 v6 O
terone, which is a more potent metabolite, is more
3 Q4 _5 N# q! ]6 ]7 A" gactive in young children exposed to testosterone3 X: t+ G. K) q. ]3 i/ z
exogenously7; however, we did not measure a dihy-
: l3 S" j. F& G" \drotestosterone level in our patient. In addition to* I; C& G% M0 r
virilization, exposure to exogenous testosterone in* M8 O3 s: N: T! Z' p* e
children results in an increase in growth velocity and# Y+ n$ u) W) f; @& f i7 g. s9 Q
advanced bone age, as seen in our patient.* O! c; Y* t1 V( V
The long-term effect of androgen exposure during
5 z! f6 z* |) J% n" m& O' dearly childhood on pubertal development and final% ~" k8 c: b6 Y
adult height are not fully known and always remain4 w9 z. S, Y5 x1 Y
a concern. Children treated with short-term testos-
! s3 |8 e }9 n% P+ @# a: A$ sterone injection or topical androgen may exhibit some. \4 L' o6 g: j* r1 F% `4 K
acceleration of the skeletal maturation; however, after0 |9 b2 T5 w$ Z9 V; {, f
cessation of treatment, the rate of bone maturation: G1 q) |8 l$ U* e4 p1 [# a3 q* |* z
decelerates and gradually returns to normal.8,9: J; p) W; [: b+ M P( r( y
There are conflicting reports and controversy
3 o1 a$ [8 j& Nover the effect of early androgen exposure on adult
8 \* K+ z7 d$ ?4 spenile length.10,11 Some reports suggest subnormal
% [+ K8 s- G; r: B! ^7 x. tadult penile length, apparently because of downreg-5 [. h+ o9 Y# n( }
ulation of androgen receptor number.10,12 However,2 G! m4 y; _, u: {; C# ]4 v. j# Y
Sutherland et al13 did not find a correlation between' }1 a3 c3 R8 k [) E" j0 ?
childhood testosterone exposure and reduced adult/ B! l: E' ~ M' F2 J5 ?' g: U* R
penile length in clinical studies.
0 W( M+ n$ @* p' `3 J2 A$ cNonetheless, we do not believe our patient is* o; _* d( G4 Q% _0 m# M6 m
going to experience any of the untoward effects from* k9 V8 B4 R; M$ @) E. P" o
testosterone exposure as mentioned earlier because
/ x2 H7 J; m) g$ G$ T5 Fthe exposure was not for a prolonged period of time.
4 A" \4 R7 R4 v; B0 e# s7 y ]# YAlthough the bone age was advanced at the time of
4 L( [! o7 x, g% Y* {9 M; t1 ndiagnosis, the child had a normal growth velocity at. B* h7 v& h8 C
the follow-up visit. It is hoped that his final adult
) k9 H* v/ o( o5 c- D8 s2 Iheight will not be affected.2 e7 p3 @! w9 M. L( P
Although rarely reported, the widespread avail-
+ O% \( C2 x: P$ A! R9 R) Zability of androgen products in our society may. T s4 }8 u) K3 G/ S( T) g
indeed cause more virilization in male or female
7 R/ [# [+ G% |1 B& f- \# f* ~children than one would realize. Exposure to andro-" `3 I- [3 S' |3 I) k
gen products must be considered and specific ques-) @' j. F6 G" B7 y( m) E+ T1 B
tioning about the use of a testosterone product or1 N; H: u1 o+ i/ k
gel should be asked of the family members during! B5 \* B+ _& a. ?9 t; u5 f M5 f
the evaluation of any children who present with vir-$ F5 j& J; G$ _" n5 O
ilization or peripheral precocious puberty. The diag-
; [2 n" B O6 s8 R9 O. K! Fnosis can be established by just a few tests and by5 a6 X" A, X- T( U5 u+ ]& O
appropriate history. The inability to obtain such a
5 W7 m& O" U# u+ Dhistory, or failure to ask the specific questions, may- I" W+ |2 ~9 y9 {- T1 c
result in extensive, unnecessary, and expensive8 E7 C8 `1 h& s5 b
investigation. The primary care physician should be
$ h; _8 a! u+ Y9 g3 Daware of this fact, because most of these children
- G2 T" ]# T% s3 G9 O. K1 E: zmay initially present in their practice. The Physicians’
8 N+ Y% B4 _8 @3 o* {& ~9 `% DDesk Reference and package insert should also put a8 L8 F4 I2 d! c p6 t& d
warning about the virilizing effect on a male or8 C5 i3 J1 l1 E/ E
female child who might come in contact with some- G% A* ]5 X' X4 H/ |7 z
one using any of these products.
7 I4 j" N- m- K, U; ZReferences
# v/ e( ]5 G0 ] K8 H, R3 h$ s$ i1. Styne DM. The testes: disorder of sexual differentiation
) h! g/ u7 \6 m* K! ~2 H3 Hand puberty in the male. In: Sperling MA, ed. Pediatric
1 w! x/ ~; ?( y& V' w1 e3 hEndocrinology. 2nd ed. Philadelphia, PA: WB Saunders;5 f9 m9 i+ _; p, g9 R% y# h3 I3 A) K
2002: 565-628.
, y9 S+ t& E8 V) f% E$ I! B* S2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious
* A( G5 a$ T2 c& T# b: S" upuberty in children with tumours of the suprasellar pineal
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4 c7 J' K1 }9 @& Y; t! VTopical Testosterone Exposure / Bhowmick et al 543
: k; I/ Y7 V( G2 x# Iareas: organic central precocious puberty. Acta Paediatr.6 Y9 w X' u1 x( g; \, P
2001;90:751-756.8 I) [; y7 \7 ? X5 A; M. m
3. Lee PA. Puberty and its disorders. In: Lifshitz F, ed.
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4. Yu YM, Punyasavatsu N, Elder D, D’Ercole AJ. Sexual% t/ j7 c* Q [0 ~: a* L
development in a two-year-old boy induced by topical
G. a* x1 [" t4 L% m! [exposure to testosterone. Pediatrics. 1999;104:e23.
% R' {- O6 N w5. Greulich WW, Pyle SI, eds. Radiographic Atlas of
2 X% W" H7 E; B4 qSkeletal Development of the Hand and Wrist. 2nd ed.
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