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is a significant concern for physicians. Central
$ i, q9 t+ w! C7 H5 R8 bprecocious puberty (CPP), which is mediated* g6 W) E+ T2 \. t9 d
through the hypothalamic pituitary gonadal axis, has8 B6 H+ f2 {0 u+ m/ h
a higher incidence of organic central nervous system
5 q, G: w/ ]* F4 Y1 p8 Blesions in boys.1,2 Virilization in boys, as manifested
! t% y2 L, N6 U' O" rby enlargement of the penis, development of pubic2 W3 L, q" b' k! ?+ K; E, _
hair, and facial acne without enlargement of testi-; F( E! Z. d4 l& L p: A8 s$ d
cles, suggests peripheral or pseudopuberty.1-3 We
$ r. p* ]6 s: B% Creport a 16-month-old boy who presented with the( n& V4 M# r* z
enlargement of the phallus and pubic hair develop-
! t7 i- x# t) v, F# V" Iment without testicular enlargement, which was due d( e9 j& S4 a1 o' X7 `( W
to the unintentional exposure to androgen gel used by
2 X9 Y1 l+ ?3 l' d& \0 v# E4 Pthe father. The family initially concealed this infor-6 E) k& ]% V7 S7 v5 V# I3 ~" b1 I& E
mation, resulting in an extensive work-up for this% F* k4 ?% C" ~9 M. {
child. Given the widespread and easy availability of
$ y M' o, ^7 A1 ptestosterone gel and cream, we believe this is proba-9 ]' j9 n2 L/ R6 W! _' J2 @2 X1 ^
bly more common than the rare case report in the. S% Z$ M" _; r3 N+ t
literature.4
( g. C% c# S: I6 y4 PPatient Report
1 \2 G2 N. Z, C- c7 v$ X" UA 16-month-old white child was referred to the
' X% F- n1 L+ |1 }. ~endocrine clinic by his pediatrician with the concern
) `1 j& O0 A, }2 fof early sexual development. His mother noticed# Q- p" V/ n7 w
light colored pubic hair development when he was
~( g; k; K6 v5 g' KFrom the 1Division of Pediatric Endocrinology, 2University of( |* o7 t$ w/ V& Q4 j/ @9 l& t8 R' O
South Alabama Medical Center, Mobile, Alabama.3 s) C2 g6 B6 S) C9 M& `/ K8 d, P
Address correspondence to: Samar K. Bhowmick, MD, FACE,
8 A" Z9 u" Z% w1 H. nProfessor of Pediatrics, University of South Alabama, College of2 D3 X- d' ]; y4 U/ R5 B
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;
; ^0 N% `! a# Y, w6 D# P) _e-mail: [email protected].
8 l$ {4 `& E$ }! G' p1 _$ z" Eabout 6 to 7 months old, which progressively became
$ w. m/ I) g% Jdarker. She was also concerned about the enlarge-' l# g- d! y7 Q( ~3 c6 L$ P
ment of his penis and frequent erections. The child1 ~! m5 }& Q1 g. s, |' J6 `& e) M
was the product of a full-term normal delivery, with
% ?6 {! Y9 Z4 P# K1 x# s% Q: u6 Ea birth weight of 7 lb 14 oz, and birth length of7 g& Y- c/ \' e' ?% M
20 inches. He was breast-fed throughout the first year% t5 K: i/ g1 M" _4 M7 Y: Y% P& s& V
of life and was still receiving breast milk along with
( y( f5 x. \4 Q# |9 T. j5 Csolid food. He had no hospitalizations or surgery,7 L! A) s" `$ [1 g1 c, Z8 n! d% T
and his psychosocial and psychomotor development
( K6 E, D! [8 E1 D) kwas age appropriate.
e3 r- b% K! o+ _The family history was remarkable for the father,8 [* s* b/ f. w( e$ e7 z: K
who was diagnosed with hypothyroidism at age 16,
8 ~: |- l' i7 ~+ Z7 O4 uwhich was treated with thyroxine. The father’s8 \ j% @5 t2 b" q( x1 O( u* U
height was 6 feet, and he went through a somewhat( B9 Q" P, e f
early puberty and had stopped growing by age 14.
7 h2 [$ z& x, Y- J: j! C1 UThe father denied taking any other medication. The/ [. `3 S2 C8 z
child’s mother was in good health. Her menarche/ g' M/ v6 R9 m( T$ N i
was at 11 years of age, and her height was at 5 feet+ M V2 p2 e' ?3 L9 ~) S- T q
5 inches. There was no other family history of pre-
5 \7 |* ~/ Q+ ]cocious sexual development in the first-degree rela-- i; T- D0 v9 ~
tives. There were no siblings.$ r* D. Z* ]8 {, k! s5 ]4 u
Physical Examination7 g5 U$ h3 U- ^8 u! K
The physical examination revealed a very active,
; b6 C$ j2 c1 i; O6 b! Fplayful, and healthy boy. The vital signs documented
6 [0 d, C0 M1 y1 C) y; H/ Xa blood pressure of 85/50 mm Hg, his length was& Z6 h v5 i" I% f
90 cm (>97th percentile), and his weight was 14.4 kg
! G2 u" Q0 x0 V6 K(also >97th percentile). The observed yearly growth" |% |/ w2 M$ d) r5 Q
velocity was 30 cm (12 inches). The examination of
6 q9 j. C; E3 Z& L/ I& i' z8 t# Fthe neck revealed no thyroid enlargement.
( K' u7 \8 z9 Y x! TThe genitourinary examination was remarkable for8 O1 t7 t' ~$ f3 e/ b/ D
enlargement of the penis, with a stretched length of
- K9 F( E' J7 C* _! w, p7 ], V8 cm and a width of 2 cm. The glans penis was very well
! g. S" N4 [ R" W! Qdeveloped. The pubic hair was Tanner II, mostly around5 f$ V: |& X$ k# ]3 [
540
) U) J* K7 O/ A3 ?. _; M; I1 D J Dat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from: G' s! A4 B% p* d$ ~
the base of the phallus and was dark and curled. The+ x# k5 B1 f. D0 c2 h8 v" q& ?
testicular volume was prepubertal at 2 mL each.
r5 t% ]! V( O: w/ K6 HThe skin was moist and smooth and somewhat# F% w2 R6 N7 P6 u$ \2 h# }
oily. No axillary hair was noted. There were no
3 `- r1 e& x9 B" s/ }' V3 Q* D3 labnormal skin pigmentations or café-au-lait spots.
) b: V' r: d/ q% l! `, PNeurologic evaluation showed deep tendon reflex 2+1 l0 z! Q6 e( F9 O
bilateral and symmetrical. There was no suggestion
& U" l# K% \) C% vof papilledema.% }5 D1 U$ q- K+ b/ U& C
Laboratory Evaluation. ^6 k2 |! _, [. R/ r1 p
The bone age was consistent with 28 months by6 S8 l5 s; C, h
using the standard of Greulich and Pyle at a chrono-
8 G% I L! G( Z& |logic age of 16 months (advanced).5 Chromosomal
: y5 t2 C$ ?' _. v- s( x) _karyotype was 46XY. The thyroid function test9 _$ A3 m$ S B/ H6 ?0 ]
showed a free T4 of 1.69 ng/dL, and thyroid stimu-6 ]8 k) Q8 l8 p# G5 U5 n
lating hormone level was 1.3 µIU/mL (both normal).1 e; R5 r* {8 z0 I2 l# U
The concentrations of serum electrolytes, blood- F# F3 @+ v4 Z" ^: ?* x
urea nitrogen, creatinine, and calcium all were
6 u; w5 j: J( {5 ^3 Cwithin normal range for his age. The concentration
$ S) W) d5 @* U- [9 n' f! m: J9 uof serum 17-hydroxyprogesterone was 16 ng/dL$ h4 V3 k+ d% W( p. {4 t/ X
(normal, 3 to 90 ng/dL), androstenedione was 20- {7 \$ o# P: g& y5 h1 S! f( r
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-( a) B. v" \6 U' ^) j! m/ Z$ X
terone was 38 ng/dL (normal, 50 to 760 ng/dL),8 }. B p+ t7 o" w) G
desoxycorticosterone was 4.3 ng/dL (normal, 7 to \6 S) s+ K$ l4 j0 b% s
49ng/dL), 11-desoxycortisol (specific compound S)
- V8 l* d. X8 b% zwas 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-
O& \8 ~/ i Z8 Ftisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total
0 n- A m0 Q/ S4 @4 w1 X# y3 a$ \8 l3 u7 stestosterone was 60 ng/dL (normal <3 to 10 ng/dL),
2 K/ ~+ ~- e' o( [and β-human chorionic gonadotropin was less than
7 U$ \ b6 k( f" L, K% J5 mIU/mL (normal <5 mIU/mL). Serum follicular2 C3 K. \' w3 M3 a! K
stimulating hormone and leuteinizing hormone
- l& V0 m' P. k- p! U# t' sconcentrations were less than 0.05 mIU/mL
`3 i9 v8 G" Q0 V' Z5 t2 M(prepubertal).6 s$ f+ I& t" n% {, O1 @
The parents were notified about the laboratory0 ~ ~- e7 e! K8 A0 |* J m
results and were informed that all of the tests were+ H& Q3 @) _( [9 x
normal except the testosterone level was high. The
! }9 O' O) z% q ^6 u+ f( M- Qfollow-up visit was arranged within a few weeks to Q7 g+ {" ?3 G C9 d$ x
obtain testicular and abdominal sonograms; how-
5 Y# e2 j& f" B: u5 wever, the family did not return for 4 months.* k/ ]7 r$ B9 ^5 C
Physical examination at this time revealed that the
, L: Q, T/ \7 w7 ] I' kchild had grown 2.5 cm in 4 months and had gained6 W- A8 @$ B- _8 Q# x
2 kg of weight. Physical examination remained
( i( X: \9 A1 S2 C& n6 x: yunchanged. Surprisingly, the pubic hair almost com-
6 ], S, ^( [" t/ i2 X4 Gpletely disappeared except for a few vellous hairs at
" q: z: ?2 a3 ^4 W$ B! q. n1 q4 athe base of the phallus. Testicular volume was still 22 v" _( L' | ^7 c/ D
mL, and the size of the penis remained unchanged. g7 O: C6 J. O8 o& P& \5 d3 h$ N
The mother also said that the boy was no longer hav- p! q: o, Y. z7 O+ B" a) v
ing frequent erections.
3 i7 F7 y: S, ]( |1 zBoth parents were again questioned about use of
1 O; D! ]5 i3 t! K" Hany ointment/creams that they may have applied to
( N# f( w0 y6 K- Z* ~the child’s skin. This time the father admitted the B1 M; r7 J8 @8 i2 A/ r- s
Topical Testosterone Exposure / Bhowmick et al 541
# v$ x0 ?# @9 l# G. c: v! ~$ zuse of testosterone gel twice daily that he was apply-
- P6 ?9 m6 g' _2 s. F! Aing over his own shoulders, chest, and back area for6 J8 D! j* n# E: d
a year. The father also revealed he was embarrassed
" ~: @# e: u2 x! N' pto disclose that he was using a testosterone gel pre-
* ]4 Y# `5 c0 I( k- N7 U; e. zscribed by his family physician for decreased libido
8 V& U p$ {8 a. t+ Osecondary to depression.+ }7 @" `' f: J& z2 e
The child slept in the same bed with parents.! g4 v* z+ C0 ]6 L
The father would hug the baby and hold him on his
, `/ {! N( {2 a: n5 Pchest for a considerable period of time, causing sig-1 y1 N& t8 T8 x* {+ r6 l
nificant bare skin contact between baby and father.
1 D) a) K' t! _The father also admitted that after the phone call,
; t" N: a0 |8 P. s# M* L, E) wwhen he learned the testosterone level in the baby
3 {" u2 H; e+ w) Ywas high, he then read the product information
9 W- V6 x, r" l0 f V7 r$ B* [1 t8 zpacket and concluded that it was most likely the rea-2 t* d9 d5 o- ?# `8 f ]% b: K
son for the child’s virilization. At that time, they$ [, f5 h- z, b6 _1 j; O4 d/ L
decided to put the baby in a separate bed, and the7 m, F, R$ k) v( n! G
father was not hugging him with bare skin and had% U; H5 D: v2 Y$ ^
been using protective clothing. A repeat testosterone& A8 y* Z- L; o6 K0 m! M
test was ordered, but the family did not go to the. _+ ?6 P. l/ D; X" ` b4 w
laboratory to obtain the test.
- h+ Z9 h( e' |, }- v. J1 V, qDiscussion% I7 A% s% m- m' x8 S% x; n
Precocious puberty in boys is defined as secondary
! Y1 M; z7 a2 o' K. O: C% `sexual development before 9 years of age.1,4& M P3 v8 v0 `! M p% Z7 B
Precocious puberty is termed as central (true) when' }! F6 t6 p1 M. E2 N: h) v! D( k
it is caused by the premature activation of hypo-, W2 V& d2 A2 d
thalamic pituitary gonadal axis. CPP is more com-
2 z$ q0 C; i8 c L, c# Qmon in girls than in boys.1,3 Most boys with CPP
! ~% ~0 C W. }' xmay have a central nervous system lesion that is
* R' S7 I) d) T! Hresponsible for the early activation of the hypothal-
$ n8 g( R% m- Wamic pituitary gonadal axis.1-3 Thus, greater empha-1 y$ R. g7 H1 y3 ?: E# C) Y
sis has been given to neuroradiologic imaging in% ~& x4 b3 f) A2 f$ \
boys with precocious puberty. In addition to viril-
1 i$ I0 ?& X/ a7 Uization, the clinical hallmark of CPP is the symmet-
S% E# P& t- S' k; N- h1 arical testicular growth secondary to stimulation by/ X8 x% v/ k+ B) a3 W# D
gonadotropins.1,3
0 g2 W: r, E: I! W$ gGonadotropin-independent peripheral preco-3 H" \' t* J q% z3 `% v5 o# L) U
cious puberty in boys also results from inappropriate
% a- |6 R5 B4 q; oandrogenic stimulation from either endogenous or
$ b3 b- z7 {/ Texogenous sources, nonpituitary gonadotropin stim-$ G0 ~: K" U1 C9 a( `3 K6 H
ulation, and rare activating mutations.3 Virilizing6 j; @% R0 p: D. K) _5 i* j
congenital adrenal hyperplasia producing excessive
* a, g6 n5 q5 Y2 Z/ H& Q1 j0 zadrenal androgens is a common cause of precocious8 o8 n+ N* s) U2 g/ M+ Z H
puberty in boys.3,42 z q% }8 m$ @7 e
The most common form of congenital adrenal
; @3 F2 r2 u' a7 p: r1 [# y4 chyperplasia is the 21-hydroxylase enzyme deficiency.+ V; W' L! z' o' w! m. F V- [$ @
The 11-β hydroxylase deficiency may also result in
) j) k# x& H/ n7 j3 Zexcessive adrenal androgen production, and rarely,7 F: V. D+ L! r! _( R3 g1 |
an adrenal tumor may also cause adrenal androgen
9 y7 {$ ^. C1 @- k$ |1 cexcess.1,3
8 }5 t. t/ I+ `! X' yat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
8 J3 H6 V! A# G7 w. d/ m! j( C542 Clinical Pediatrics / Vol. 46, No. 6, July 20071 s1 i9 @% `5 q, L% L _5 S! `% a! F
A unique entity of male-limited gonadotropin-/ j# z) v6 N8 m! D$ v' i, y
independent precocious puberty, which is also known
: {" |; }( v4 r' r7 Das testotoxicosis, may cause precocious puberty at a
- z: s1 J0 M& C$ Lvery young age. The physical findings in these boys
$ N' z3 v, _: Ywith this disorder are full pubertal development,5 s" s: Q! m# G8 F6 Z1 ?' p
including bilateral testicular growth, similar to boys6 k! n6 z; @' e% R) R; B! H- v
with CPP. The gonadotropin levels in this disorder, y0 J) \4 A& H
are suppressed to prepubertal levels and do not show5 |* b s- n9 f& D7 D- \
pubertal response of gonadotropin after gonadotropin-
% [" }9 w( |$ W1 }8 Rreleasing hormone stimulation. This is a sex-linked2 @( M2 y& N, w$ \
autosomal dominant disorder that affects only% E4 K% L/ x; ~9 ?
males; therefore, other male members of the family, ]8 t: b1 O( i! r- |5 u1 X
may have similar precocious puberty.3
1 N7 P% `! }; @: ]# M* [# KIn our patient, physical examination was incon-; r& |3 o8 H, ]7 u
sistent with true precocious puberty since his testi-2 M/ p5 [! ?0 Q6 c# m& J- C9 P
cles were prepubertal in size. However, testotoxicosis
: |1 Q" P# N5 A' r, `9 I0 W* Qwas in the differential diagnosis because his father
6 H5 X* s9 t* t# Z5 H' }2 Cstarted puberty somewhat early, and occasionally,
R2 k; u1 N$ ^testicular enlargement is not that evident in the
9 X k. R2 ^& y3 }beginning of this process.1 In the absence of a neg-
2 C4 T& B& \4 f3 \7 f! Iative initial history of androgen exposure, our
( @9 {& l; [* `7 l& ?5 Xbiggest concern was virilizing adrenal hyperplasia,3 k# {+ N; x; U& [
either 21-hydroxylase deficiency or 11-β hydroxylase! L# l' x/ d, C
deficiency. Those diagnoses were excluded by find-. V' T* M+ C1 b' w( ?) A* P+ W! e
ing the normal level of adrenal steroids.* Y. I# S6 U. r! ]3 {
The diagnosis of exogenous androgens was strongly
( X) R/ _0 j+ T1 M/ Fsuspected in a follow-up visit after 4 months because
' T, H. E& Z# O# Qthe physical examination revealed the complete disap-
0 Y% [- f2 U3 @1 f6 V: W& \. b" b0 xpearance of pubic hair, normal growth velocity, and
: p+ o2 w9 h ^+ [. Gdecreased erections. The father admitted using a testos-
5 M: K% G" g: L9 Y! E: i$ pterone gel, which he concealed at first visit. He was: D+ n2 v% Y, T' P& R5 u3 |
using it rather frequently, twice a day. The Physicians’
! _; ~$ f% K# H: E8 D8 x0 g; DDesk Reference, or package insert of this product, gel or
0 X2 \, i% K! p( A! g' Lcream, cautions about dermal testosterone transfer to+ c: S1 Q2 {. m) }6 k) P+ N4 c
unprotected females through direct skin exposure.
' p) W! p, I: J% a( LSerum testosterone level was found to be 2 times the) ]! e' V; P* Q7 Q- \# z3 ?3 z
baseline value in those females who were exposed to
{' E0 V6 j& ^& [$ y$ @even 15 minutes of direct skin contact with their male
7 N, ^! p% A) j+ ~3 k$ @7 Bpartners.6 However, when a shirt covered the applica-8 m0 D3 D, i2 Q5 G. F( a2 G- E
tion site, this testosterone transfer was prevented.% R1 h U- c# S" _" \( y
Our patient’s testosterone level was 60 ng/mL,& A/ p# ?! [# w X' Y
which was clearly high. Some studies suggest that
$ G* I! Y) [$ m" y; a5 Q) V" Q/ l9 ?dermal conversion of testosterone to dihydrotestos-
C' }- K* |0 y( H" m% I$ Bterone, which is a more potent metabolite, is more
$ g8 n8 @5 o3 r' K0 wactive in young children exposed to testosterone# ~) Y3 j2 _9 h6 |2 D
exogenously7; however, we did not measure a dihy-; q: {3 z' \ {0 h/ V4 N2 X; b
drotestosterone level in our patient. In addition to8 O/ w5 o) H. ?
virilization, exposure to exogenous testosterone in
: S1 U5 F# K C! t! M2 c4 S" |children results in an increase in growth velocity and
/ l6 j% f4 ~% |% Q ?0 D% a0 B: W4 f2 dadvanced bone age, as seen in our patient.5 E$ x* y# K3 s) m; o% E
The long-term effect of androgen exposure during
: z5 C0 o* `1 s7 T% ]. b, b" ~/ K: \early childhood on pubertal development and final/ q+ m; `/ G5 s% B
adult height are not fully known and always remain' e5 |. X; Y9 E$ }
a concern. Children treated with short-term testos-
: K, L, F' j7 p" F% S- Cterone injection or topical androgen may exhibit some
! x* p7 V; `( y/ pacceleration of the skeletal maturation; however, after" R# z3 t% X' l# q$ o
cessation of treatment, the rate of bone maturation
! L! Y2 _0 V3 X/ o( r4 Pdecelerates and gradually returns to normal.8,9, }3 T& m% w6 F. q" i; s5 t$ Q% t
There are conflicting reports and controversy
& O9 R7 t1 q1 [: [6 k- \1 sover the effect of early androgen exposure on adult
L8 h* ^; X1 {- |7 U) e5 G$ ]+ L$ u. Gpenile length.10,11 Some reports suggest subnormal
% x* t, z# l) H% yadult penile length, apparently because of downreg-- o: p9 ~; U/ P; U, I
ulation of androgen receptor number.10,12 However,5 _3 L( V; i9 x) g2 `$ n- I7 Q V
Sutherland et al13 did not find a correlation between6 m g$ O6 g* K( }6 r9 {! h+ O
childhood testosterone exposure and reduced adult6 C5 v+ {# ~- z
penile length in clinical studies.5 ]# w# A0 _+ s9 `6 g
Nonetheless, we do not believe our patient is( c7 Z: q7 n/ `; n% X5 a
going to experience any of the untoward effects from- L" Q- S7 |% _# Q: X8 O5 F3 M
testosterone exposure as mentioned earlier because" p3 Q! t+ C( o) D* `" u
the exposure was not for a prolonged period of time.
5 H! ?, }# P7 w HAlthough the bone age was advanced at the time of, Z9 r( C' z' L1 s
diagnosis, the child had a normal growth velocity at8 n2 S) d. n; A; H3 V0 ~9 {
the follow-up visit. It is hoped that his final adult
7 F9 x' z+ X4 C' rheight will not be affected.* ` B0 D3 o% N$ R: \1 K
Although rarely reported, the widespread avail-' F5 H3 u6 S% m: Z
ability of androgen products in our society may- s/ C# M: h# U* n! m$ L$ c& F
indeed cause more virilization in male or female9 e- S8 V' q/ J5 P% s" S- Z. h
children than one would realize. Exposure to andro-1 A4 P+ R7 f a
gen products must be considered and specific ques-
% c9 a7 e0 S5 |; h, Gtioning about the use of a testosterone product or& n+ `" v7 v2 i7 X, F% y! L$ o
gel should be asked of the family members during y9 I1 V1 L3 d1 N% p, d
the evaluation of any children who present with vir-
' t9 B: i) `+ r6 [& qilization or peripheral precocious puberty. The diag-9 a" t- p/ l: ?+ B0 X0 ?# |
nosis can be established by just a few tests and by
, [5 o E l* ?) w3 ? @# a1 J9 ]appropriate history. The inability to obtain such a
! G- ~* S$ c) P$ Phistory, or failure to ask the specific questions, may
) Q! t5 e# z8 a/ t4 U7 Xresult in extensive, unnecessary, and expensive
/ h! h F' x% g! Q! m9 P& Q$ ]6 minvestigation. The primary care physician should be
7 _% f7 b4 r& E3 t! B3 saware of this fact, because most of these children5 ]+ T- K! `6 d$ G# F
may initially present in their practice. The Physicians’
9 `$ Q: X: Q- |% y1 b* SDesk Reference and package insert should also put a$ e7 S8 @6 a4 L
warning about the virilizing effect on a male or
2 p: Q- s( G, `" {5 ufemale child who might come in contact with some- M/ _8 V, B5 ?
one using any of these products.
3 S" e, ~) ?. H8 F7 G- d3 \: L, F6 @References
$ V4 w; Q; m' o4 g( U' ]: Q0 }1. Styne DM. The testes: disorder of sexual differentiation' @0 h& @ ^- _! f9 L7 Z
and puberty in the male. In: Sperling MA, ed. Pediatric0 p q. S' O; |1 p' G1 n( B6 M+ N
Endocrinology. 2nd ed. Philadelphia, PA: WB Saunders;1 W; t) u) ]$ t" O" F1 P% a1 N
2002: 565-628.* T: H t/ ]6 x" h: I7 q# M
2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious
7 m' Z+ ^$ k0 Wpuberty in children with tumours of the suprasellar pineal
- q9 D1 h, n2 I' o: z) ^, x2 {: uat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
8 B. e, O# K o2 F0 zTopical Testosterone Exposure / Bhowmick et al 543
" A/ X/ N+ ]; \" R. z* R0 sareas: organic central precocious puberty. Acta Paediatr.
- ]; h: R, j4 ~# [- ]2001;90:751-756.% U7 ?' _1 _; S# n
3. Lee PA. Puberty and its disorders. In: Lifshitz F, ed.
1 ^: R* y; k. d; K( d g: {Pediatric Endocrinology. 4th ed. New York, NY: Marcel7 U0 V" p! F9 @3 e4 A
Dekker Inc; 2003:211-238.( w" {% G: w: P2 ~: U% O
4. Yu YM, Punyasavatsu N, Elder D, D’Ercole AJ. Sexual/ g$ F" q* T0 `5 m# p. L5 P r
development in a two-year-old boy induced by topical6 ~& b0 Y+ F% g, m' m
exposure to testosterone. Pediatrics. 1999;104:e23.7 [# c* R% l% q9 J# a0 _' q
5. Greulich WW, Pyle SI, eds. Radiographic Atlas of9 ?; W% b) l" Z% @ h8 H" E o
Skeletal Development of the Hand and Wrist. 2nd ed.! T* Z( l3 }9 a7 N- x
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