繁體中文
不翻译
简体中文
English
繁體中文
日本語
한국어
切換到窄版

WK綜合論壇, WK综合论坛

 找回密碼
 立即注册
樓主: wk007

鄉下的妹子太便宜,一次四個都要了[12P]

[複製鏈接]
發表於 2025-1-4 03:25:35 | 顯示全部樓層
Sexual Precocity in a 16-Month-Old  a* [( {& j9 f
Boy Induced by Indirect Topical. }- @  h- k8 S& l' G9 F) \
Exposure to Testosterone, m. p, s2 k: H( Q/ v6 J* ^  n% d
Samar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,26 d$ q( c5 n: B0 n' T
and Kenneth R. Rettig, MD1# Z% M) N1 j6 b
Clinical Pediatrics/ x+ L0 E* w; d+ \) g0 h
Volume 46 Number 61 o; L4 X4 x8 H7 e; G; X! ?
July 2007 540-543
6 e+ p3 `9 }7 Q* }% u© 2007 Sage Publications  Q2 d* w9 [4 h2 Y
10.1177/00099228062966515 y3 E7 X5 a8 ?
http://clp.sagepub.com
; Q9 m' I  P% |/ c& n- C! Zhosted at
# B* R6 e6 @" ?8 g  b: z% }http://online.sagepub.com
9 K- X& U2 B7 APrecocious puberty in boys, central or peripheral,7 s2 D7 o# v1 i% b% [8 j
is a significant concern for physicians. Central$ \6 ~' }: ^- n: n
precocious puberty (CPP), which is mediated
; j  e8 N0 o5 I% [( pthrough the hypothalamic pituitary gonadal axis, has
( P8 b2 @0 \* k6 c8 ?+ D( ~8 Aa higher incidence of organic central nervous system! ?% R5 W5 l% i4 ?" }4 ]
lesions in boys.1,2 Virilization in boys, as manifested. o# M. \- ^/ n. I7 Y6 j( t
by enlargement of the penis, development of pubic
, H3 R# F) ?, Hhair, and facial acne without enlargement of testi-
9 g( ^: o' `+ y- ~cles, suggests peripheral or pseudopuberty.1-3 We
+ \& O+ o2 A: Jreport a 16-month-old boy who presented with the! l0 B$ p$ f" p# D; Y. m9 m6 e
enlargement of the phallus and pubic hair develop-
/ t$ o3 m4 o, A/ x5 `! A% N  lment without testicular enlargement, which was due
# f0 P9 Z- _2 Tto the unintentional exposure to androgen gel used by
* C& n4 E. G+ w& e" ?the father. The family initially concealed this infor-
: o! `5 ^  u0 e0 r) fmation, resulting in an extensive work-up for this# |( q, j! l' L; m9 N  D7 Y! E# P
child. Given the widespread and easy availability of" C% u6 M" p7 f& T3 e/ T
testosterone gel and cream, we believe this is proba-
. m7 c4 P9 C2 x& sbly more common than the rare case report in the
2 l7 l7 G: c5 G* Yliterature.4+ [- z( B. K( Y
Patient Report
8 l# \3 o5 r. [$ E; V) DA 16-month-old white child was referred to the
( L. B0 r4 R; ^, l% N7 R/ u0 n/ S/ ]endocrine clinic by his pediatrician with the concern; T# L- j1 i% L$ p4 w2 b
of early sexual development. His mother noticed
) e4 D& g; U0 Plight colored pubic hair development when he was
  y, Q0 D$ O5 @" JFrom the 1Division of Pediatric Endocrinology, 2University of& V/ I0 b7 B; u0 p  v' ]5 k( p, I
South Alabama Medical Center, Mobile, Alabama.
" T8 N, @/ t0 ?# wAddress correspondence to: Samar K. Bhowmick, MD, FACE,
7 U. k% E1 E( ]6 Q6 r8 F& ]Professor of Pediatrics, University of South Alabama, College of, B1 M8 _4 U: j+ K
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;
' ~+ B. y; c+ c: t" pe-mail: [email protected].# o! ]& l3 ^! {, H. w8 n
about 6 to 7 months old, which progressively became
0 o( i* P5 D5 u9 G  Odarker. She was also concerned about the enlarge-; J2 c3 w8 L) M+ D1 V3 ]( h6 \# F
ment of his penis and frequent erections. The child
3 h! c5 N  f( X$ U2 M; p) s: Vwas the product of a full-term normal delivery, with
# p) T% I" {: G7 Q" H: l' C; Da birth weight of 7 lb 14 oz, and birth length of
3 t  S# K) v& U8 z20 inches. He was breast-fed throughout the first year! g2 ~% q6 Y4 U" k, L' I: c% Y
of life and was still receiving breast milk along with
' a! B) y: |  U( `/ ]8 E6 W' a3 I9 ksolid food. He had no hospitalizations or surgery,1 }% a7 P0 a" ?2 j
and his psychosocial and psychomotor development
9 p) L  f, i, l5 K3 y% e8 Q0 M9 r+ Z" gwas age appropriate.& T% C* p6 G3 A; v% X- Z# V1 ?& T! `
The family history was remarkable for the father,$ M  G2 _/ M5 Y7 t) Z6 ?
who was diagnosed with hypothyroidism at age 16,$ T5 A3 \1 t, m" B/ S
which was treated with thyroxine. The father’s
) G8 d4 a+ v, @# _height was 6 feet, and he went through a somewhat
2 @7 L0 H6 m; Q) |+ v0 ?; \early puberty and had stopped growing by age 14./ A' y8 S' b# l) v8 a4 V
The father denied taking any other medication. The& l7 ^4 c9 ~3 M
child’s mother was in good health. Her menarche2 z( W) f! _8 G
was at 11 years of age, and her height was at 5 feet
2 b/ H7 e3 Y* |6 ?! p1 H: B5 inches. There was no other family history of pre-
$ b' Y$ A* J  d5 [cocious sexual development in the first-degree rela-
8 _$ r! F% A0 N# htives. There were no siblings.3 m7 z/ b8 d1 M6 g" E
Physical Examination# p9 d: f9 x/ f: C, q
The physical examination revealed a very active,+ M. G. w$ q# q+ B  ^  V+ [7 w; r4 M* s
playful, and healthy boy. The vital signs documented4 t& d1 W. t: U0 O5 ~% [
a blood pressure of 85/50 mm Hg, his length was
6 }3 I  i2 t( c7 f90 cm (>97th percentile), and his weight was 14.4 kg
8 N! B  p) s7 Y; w5 i, m: G(also >97th percentile). The observed yearly growth( }! e7 N& s/ L2 L0 h, x
velocity was 30 cm (12 inches). The examination of$ x0 i% s* @7 B* E/ Q! D: `# i/ F
the neck revealed no thyroid enlargement.
) n! x3 S) M. c3 z7 P4 EThe genitourinary examination was remarkable for
- P- j# y) ~' n( _enlargement of the penis, with a stretched length of
+ U1 K; |& z& U4 n5 M# Q' t! W6 O5 N8 cm and a width of 2 cm. The glans penis was very well9 R( Z* u! o, {, g
developed. The pubic hair was Tanner II, mostly around: M  v) @- M+ u4 F, T# G1 n+ X
540
) |( e! _4 Z+ z3 t- d& }at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from. P7 c$ w( c9 N
the base of the phallus and was dark and curled. The
: D$ t* G- L! _" D9 n1 Stesticular volume was prepubertal at 2 mL each., o! H) X7 x/ r/ y
The skin was moist and smooth and somewhat" a! X. N* }  }1 r+ J  e8 o
oily. No axillary hair was noted. There were no
0 b7 \/ Y+ ^2 H  N8 U5 Oabnormal skin pigmentations or café-au-lait spots.* z5 F5 h& N4 c7 m  d
Neurologic evaluation showed deep tendon reflex 2+- J# g' x+ b$ ~# x8 d  D6 |+ T
bilateral and symmetrical. There was no suggestion/ `: Q6 V; ?4 i2 u9 I& Q
of papilledema.- y0 J3 `% L1 a) g3 I) H/ _
Laboratory Evaluation" K& s$ E2 @- ~* B
The bone age was consistent with 28 months by- ~, ^0 j6 x3 G& o9 C
using the standard of Greulich and Pyle at a chrono-
2 I1 w; Z7 u% Q( z# glogic age of 16 months (advanced).5 Chromosomal- o  ?- J/ o" g6 p) e7 v# K
karyotype was 46XY. The thyroid function test! v- Q- @7 K. m) ~
showed a free T4 of 1.69 ng/dL, and thyroid stimu-" H0 ?; S! R( D1 T0 {
lating hormone level was 1.3 µIU/mL (both normal).: N8 [8 R# m. i5 _
The concentrations of serum electrolytes, blood
4 |+ ?5 l, S# `6 `urea nitrogen, creatinine, and calcium all were
3 O6 l# {+ ~# [* h1 uwithin normal range for his age. The concentration* B, n$ M) J1 w. v0 P
of serum 17-hydroxyprogesterone was 16 ng/dL% ^4 L( B/ t4 C0 X) z
(normal, 3 to 90 ng/dL), androstenedione was 20
. M) f% D( ^$ R7 c9 sng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-
! m% f0 m6 ?1 {3 c/ gterone was 38 ng/dL (normal, 50 to 760 ng/dL),( Y3 j4 c4 m: Z" J
desoxycorticosterone was 4.3 ng/dL (normal, 7 to
! n# D$ s: r3 c0 k5 C  f- h49ng/dL), 11-desoxycortisol (specific compound S)
' ~. P" e) d/ ^/ I6 dwas 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-
5 j/ M  [9 I0 w0 V4 }' o: U! Ktisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total# C! Q! i8 l  B! K
testosterone was 60 ng/dL (normal <3 to 10 ng/dL),+ s# ]4 y9 X( `) C
and β-human chorionic gonadotropin was less than9 x! q- k0 M2 Q: Q: D0 J$ c* h0 _
5 mIU/mL (normal <5 mIU/mL). Serum follicular
) R& B: C* y1 d6 P# ~* Zstimulating hormone and leuteinizing hormone
& [; L6 R  ]% \) \/ ], xconcentrations were less than 0.05 mIU/mL2 `5 c+ X# [, n3 d. E* [
(prepubertal).* v/ A8 f) R: a% v/ @) l: k
The parents were notified about the laboratory- U4 K) i+ A0 T
results and were informed that all of the tests were/ A* e7 z0 ~2 ~6 }! `5 r# Z
normal except the testosterone level was high. The' S* {& E- T- ]- y
follow-up visit was arranged within a few weeks to
4 ^& ?! N) U9 [8 Xobtain testicular and abdominal sonograms; how-
# C1 e9 {1 e; K1 l* J. N/ Bever, the family did not return for 4 months.
6 M2 U% n, S- W3 IPhysical examination at this time revealed that the; a. ^, q$ }3 O
child had grown 2.5 cm in 4 months and had gained
. z  w* B  `. E1 M: C$ _8 a# c2 kg of weight. Physical examination remained
, B0 k9 V2 D9 z& Z# j; iunchanged. Surprisingly, the pubic hair almost com-
  [9 w( r3 O% ~1 W' ^pletely disappeared except for a few vellous hairs at; |7 a* G0 c( o3 l
the base of the phallus. Testicular volume was still 21 n3 i" A6 I0 F( [$ `$ g: }0 M
mL, and the size of the penis remained unchanged." Z- N) ?- H& u
The mother also said that the boy was no longer hav-8 J6 q( p1 i3 `; b
ing frequent erections.
$ |) u4 R' ?# K5 W: S7 d" ZBoth parents were again questioned about use of
* m7 ^# O6 R3 U" r1 W& H% K! kany ointment/creams that they may have applied to/ H" Q, E) x# W* N4 u
the child’s skin. This time the father admitted the6 `2 B* I6 }, w* h; `+ B( X
Topical Testosterone Exposure / Bhowmick et al 541
; b# p( Z* q) Z4 u; juse of testosterone gel twice daily that he was apply-5 s4 a$ A8 y' W, K0 j
ing over his own shoulders, chest, and back area for0 M# w- U1 o1 \# @5 O5 b- J
a year. The father also revealed he was embarrassed
7 h5 C- v; M' J- V, J% Kto disclose that he was using a testosterone gel pre-
/ \  P% B- c7 T' escribed by his family physician for decreased libido& m) i7 _6 s+ U! |
secondary to depression.
  o* [, u8 {/ J1 SThe child slept in the same bed with parents.
, Y% g6 w% D( K7 I: t: O  \The father would hug the baby and hold him on his/ D; @, N, P, ^
chest for a considerable period of time, causing sig-
/ _! q, G8 _3 p5 M/ g5 ~nificant bare skin contact between baby and father.9 u$ v9 `. w  @5 ^8 {
The father also admitted that after the phone call,
9 E- U" \$ f+ X6 Cwhen he learned the testosterone level in the baby
1 x% [2 e; l( Fwas high, he then read the product information
1 t2 ~" O' ^- o9 z6 ^packet and concluded that it was most likely the rea-
# v3 w3 U5 F9 x0 [: Lson for the child’s virilization. At that time, they
0 U6 B0 C. Y6 C( Y1 ldecided to put the baby in a separate bed, and the
  Q* ^- W3 z3 n" Rfather was not hugging him with bare skin and had
- b3 y% L# b9 w3 {- M! Vbeen using protective clothing. A repeat testosterone
2 O4 M# l0 I: q6 ?- I& r0 ?1 ~$ [test was ordered, but the family did not go to the
( F. l# s* C& \" X1 z9 z. @laboratory to obtain the test.
) \0 F* Y/ M6 M! s7 l- @- f* xDiscussion
$ a8 o4 O+ t6 @6 [8 x6 g6 H" ?Precocious puberty in boys is defined as secondary, A3 h4 `# Q$ @, ]5 r7 k$ i
sexual development before 9 years of age.1,4: v" D( u2 c+ S. ^
Precocious puberty is termed as central (true) when# o% j' o1 m" J. }
it is caused by the premature activation of hypo-. m3 `' P2 c5 I6 m& o2 f
thalamic pituitary gonadal axis. CPP is more com-. B% \# B- ?& f2 T4 ?( T8 D
mon in girls than in boys.1,3 Most boys with CPP
& C" \- Q% u: P6 V$ M  x7 M6 Vmay have a central nervous system lesion that is
  T( o3 r, Z+ C; D! P( d0 [! b1 Fresponsible for the early activation of the hypothal-* B8 X0 ~# J# z
amic pituitary gonadal axis.1-3 Thus, greater empha-
6 H: y) Y+ X8 b% a' ~sis has been given to neuroradiologic imaging in
" A5 \5 n* v8 Bboys with precocious puberty. In addition to viril-
- }% Y) J! F" L$ D, n8 G: ^7 Qization, the clinical hallmark of CPP is the symmet-5 ~8 T% H2 K; x+ J9 E
rical testicular growth secondary to stimulation by
0 s( Z% i* @8 I( d2 e: Q& [, ygonadotropins.1,3; T3 V( [. @6 ]3 l  E! S
Gonadotropin-independent peripheral preco-
$ p8 b6 t9 ^+ P( t" I. rcious puberty in boys also results from inappropriate# j7 H7 A! [  Z2 @2 ?
androgenic stimulation from either endogenous or
" ~* y# }% c  ?+ ?$ l& }1 mexogenous sources, nonpituitary gonadotropin stim-
% _- ~$ l1 |# J( sulation, and rare activating mutations.3 Virilizing9 X  c  A4 x$ P( L6 X+ q
congenital adrenal hyperplasia producing excessive
6 L; Q/ I  R6 Y1 ]6 ~7 Uadrenal androgens is a common cause of precocious
# N" C6 S: ^' M8 C+ Z4 Dpuberty in boys.3,4$ [+ F* [8 p6 Z- x
The most common form of congenital adrenal* X  ~+ W* z1 d9 Y# d
hyperplasia is the 21-hydroxylase enzyme deficiency.
4 J' S5 s# h6 c0 l9 F2 FThe 11-β hydroxylase deficiency may also result in* [4 }" x- c2 Y/ B6 [! h9 L
excessive adrenal androgen production, and rarely,1 o) Q) `- h2 Q) X! v
an adrenal tumor may also cause adrenal androgen
0 _6 m( j; G2 O/ i/ L/ c3 S7 Qexcess.1,30 C* _" t% J- k6 b9 @6 H  n3 |; }
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
4 ]! a: t1 T6 |8 \542 Clinical Pediatrics / Vol. 46, No. 6, July 2007
$ g  t# A% N- d) W- z8 p: uA unique entity of male-limited gonadotropin-4 Y6 H1 M' O6 j
independent precocious puberty, which is also known
3 ~0 Y& W9 @( K( \& I; ]# `as testotoxicosis, may cause precocious puberty at a* J1 y0 M0 F$ x9 J7 k. W
very young age. The physical findings in these boys
8 t. I9 A3 J" _* twith this disorder are full pubertal development,
8 E- q% q6 n' q0 Y5 |including bilateral testicular growth, similar to boys
1 p+ A& l! o' w1 b9 }6 a$ hwith CPP. The gonadotropin levels in this disorder! j3 s3 E, b; r8 l1 h. W: f: f
are suppressed to prepubertal levels and do not show
% N5 F4 {6 L8 Npubertal response of gonadotropin after gonadotropin-
* u- X* Q- u/ R+ F! wreleasing hormone stimulation. This is a sex-linked  z0 `; Y: I, D. k! S: n  U
autosomal dominant disorder that affects only) c/ I0 {! S, H, u1 M. U; j$ o! K6 Z
males; therefore, other male members of the family$ L5 v3 Q  n+ _3 b9 W
may have similar precocious puberty.3, a( n8 x! R# M& w
In our patient, physical examination was incon-
1 p0 V! I& |  `9 |' d; bsistent with true precocious puberty since his testi-
, G" V2 e2 Q4 l' `cles were prepubertal in size. However, testotoxicosis
" w/ g8 j2 M2 R0 iwas in the differential diagnosis because his father
& T) y  u. T4 Y: }- Istarted puberty somewhat early, and occasionally,
6 o. I4 D7 A6 ktesticular enlargement is not that evident in the, L. }( \2 y& o$ l3 E
beginning of this process.1 In the absence of a neg-  r" m1 ^3 ]( y" z* w. O
ative initial history of androgen exposure, our
8 v* A( ~) l- v; G9 y! Q; E( lbiggest concern was virilizing adrenal hyperplasia,
3 m$ r% I% o5 U! P3 S- a& Oeither 21-hydroxylase deficiency or 11-β hydroxylase2 ]: h3 l# S1 }/ S5 L
deficiency. Those diagnoses were excluded by find-
2 r# e' [" f+ Q+ Z& p% M7 sing the normal level of adrenal steroids.: f. y+ I! U% q
The diagnosis of exogenous androgens was strongly9 S" h1 w* W7 Z6 ^+ ?8 q! K
suspected in a follow-up visit after 4 months because2 K6 O0 R5 \! E. v& n
the physical examination revealed the complete disap-. Z/ p) a0 T+ \# W9 q, |0 ^, t! o
pearance of pubic hair, normal growth velocity, and- r1 p; L* [1 G0 r+ B
decreased erections. The father admitted using a testos-
: J4 E' N) ?+ H3 oterone gel, which he concealed at first visit. He was
* T3 N: N0 l8 h3 f4 V+ Z: q" ?, Fusing it rather frequently, twice a day. The Physicians’- i$ `  q1 y( C- _3 v, t6 _
Desk Reference, or package insert of this product, gel or# C& t7 |$ C# k8 `" w
cream, cautions about dermal testosterone transfer to
2 i) Q* C' z# ]# e% p8 C# d2 ?- Wunprotected females through direct skin exposure.
" Q/ w6 ]" o* }( HSerum testosterone level was found to be 2 times the6 S! B8 u2 |8 r8 O
baseline value in those females who were exposed to" _, r3 t9 {& x; |3 E8 I% h1 R  Q
even 15 minutes of direct skin contact with their male8 o3 R" Y+ h/ ~
partners.6 However, when a shirt covered the applica-6 J* y8 A, T- P
tion site, this testosterone transfer was prevented.
9 S6 f  r; ^% y  B1 V, F" yOur patient’s testosterone level was 60 ng/mL,
2 S+ X* x8 L0 mwhich was clearly high. Some studies suggest that
. [; w$ `. m. ^5 U) e+ z: Zdermal conversion of testosterone to dihydrotestos-& }0 F. L' F9 Y' t$ g2 C4 G: [2 w
terone, which is a more potent metabolite, is more% M$ o2 ?! w$ T* n$ i! M
active in young children exposed to testosterone# n5 w$ z( @& K/ @
exogenously7; however, we did not measure a dihy-6 N( u( O& U& x) f) ^/ F! i
drotestosterone level in our patient. In addition to& F; ^( C; @! h) z( L/ f' Q
virilization, exposure to exogenous testosterone in- u+ I' I- x/ A( [& M* Q; o
children results in an increase in growth velocity and
6 V2 k1 ?- j/ R/ k* R" Z1 T( ^advanced bone age, as seen in our patient.
  Y' {; x2 d) n* F( Y- I8 cThe long-term effect of androgen exposure during
8 \: c. N3 ~- `% g9 Rearly childhood on pubertal development and final
; j( {, m6 }) Radult height are not fully known and always remain
& q- m5 u9 O; I& g, B" d7 ?* Ea concern. Children treated with short-term testos-! {% H* }. [# M5 a/ \. v/ o
terone injection or topical androgen may exhibit some
/ N& N. a/ F1 N, K5 |" _1 |acceleration of the skeletal maturation; however, after
; b- ]9 s* |1 O( F% qcessation of treatment, the rate of bone maturation
# x" _8 x" _' e8 S/ Ldecelerates and gradually returns to normal.8,9- m/ l9 L# P% ?
There are conflicting reports and controversy! D( |& a2 }  Y' T) E+ F& L) D( q
over the effect of early androgen exposure on adult9 j* z, Z4 T' \. C
penile length.10,11 Some reports suggest subnormal7 ^. j6 i9 z0 \' l/ I: ^
adult penile length, apparently because of downreg-
( i' R/ `5 W; Y- w# Aulation of androgen receptor number.10,12 However,
: V1 w. w) M9 G1 x- aSutherland et al13 did not find a correlation between
6 n" s7 ^6 J2 W  [# N, |( bchildhood testosterone exposure and reduced adult
1 S2 F6 @1 B  Y# N7 L: Qpenile length in clinical studies.) Z* w$ m2 Z, E% A
Nonetheless, we do not believe our patient is
/ E  F, {3 r/ r. X/ q5 fgoing to experience any of the untoward effects from
: W! e2 f$ L/ }9 o( ^% Mtestosterone exposure as mentioned earlier because; h( p- N+ u  z! C3 s
the exposure was not for a prolonged period of time.6 H3 F6 `) }5 G+ ]6 P, q. H
Although the bone age was advanced at the time of
! h4 M& y; D5 I: h; Ndiagnosis, the child had a normal growth velocity at+ d( y/ `+ i6 @1 D- ?9 ]. M
the follow-up visit. It is hoped that his final adult
; u9 k$ ^. ]! \1 qheight will not be affected.
, C. M- U: u) E& G& c! sAlthough rarely reported, the widespread avail-* {3 X; Q% K$ l0 ?" Q
ability of androgen products in our society may
, A/ U; ]4 D4 a, T0 E4 }% hindeed cause more virilization in male or female
3 f7 z% v2 j9 x. r' nchildren than one would realize. Exposure to andro-; g$ m9 c6 ?8 G- a( ^* C% c9 ^# F
gen products must be considered and specific ques-
' \9 V9 D, |7 A# R' p$ `9 otioning about the use of a testosterone product or
7 }% [( _& Y' ~' agel should be asked of the family members during
) p- [, @: T" w$ nthe evaluation of any children who present with vir-
% A" p" c! R% c: \" r8 P0 H% Jilization or peripheral precocious puberty. The diag-
( y. q  W% P3 V+ Qnosis can be established by just a few tests and by
: C2 t0 [" l# r5 _  q% Nappropriate history. The inability to obtain such a
$ t* }  I  g( r( z" Mhistory, or failure to ask the specific questions, may! c8 E: G7 `, {+ T5 G3 z+ Q
result in extensive, unnecessary, and expensive
4 T" \, W# u% C; Winvestigation. The primary care physician should be
0 g5 A& v2 ?% w( F# X$ ~aware of this fact, because most of these children
: W  y4 F# O# ~$ Wmay initially present in their practice. The Physicians’. w+ ~9 k, m) y) z6 x( D' |
Desk Reference and package insert should also put a
; ?" i8 u3 q2 R- Awarning about the virilizing effect on a male or
/ t7 [- I8 o" X) z+ hfemale child who might come in contact with some-' x& z) [) ~" g' q! g+ Z0 c/ U
one using any of these products.
6 ~* L' O0 c! Q* g3 F- N  r3 t) }References2 {. \8 a. M, ]3 g* H
1. Styne DM. The testes: disorder of sexual differentiation# y+ C/ K8 o) I( w: N  b) b$ g; }
and puberty in the male. In: Sperling MA, ed. Pediatric
" w/ e* f0 i3 Y/ \. o% REndocrinology. 2nd ed. Philadelphia, PA: WB Saunders;
% t; o% ~, O$ Y1 ?+ g( p+ Y, k' @2002: 565-628.
% [, w2 V7 @4 |2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious
" h+ U; T( s5 L( V+ j: m! N. tpuberty in children with tumours of the suprasellar pineal
發表於 2025-1-4 03:27:02 | 顯示全部樓層
Sexual Precocity in a 16-Month-Old' ]# w0 B, r' r4 B. k# z& F+ T
Boy Induced by Indirect Topical7 m0 S! G6 \1 K
Exposure to Testosterone
* L, ]% q! q4 Z0 Y# W& t* A/ QSamar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,2
2 {* y! J& E% Q8 k" }and Kenneth R. Rettig, MD1- M. m3 Y5 F; i, E6 p/ c" U# n* \
Clinical Pediatrics
& D1 v# O0 W" N- a* N3 x1 WVolume 46 Number 6. b  Z4 |2 r1 {, w1 g" p& V1 s
July 2007 540-543! Q' }/ x+ ]# M! h) _$ [. k# F
© 2007 Sage Publications, u! i( F4 y. O: M  R
10.1177/00099228062966517 c" u/ k* u; h' b" r
http://clp.sagepub.com) H& @& B' z4 {$ x
hosted at/ W' O- K7 q( |) _% i9 {/ V
http://online.sagepub.com
; R$ p, @6 M- S5 d) SPrecocious puberty in boys, central or peripheral,
5 I: Y5 y3 `. o% S" H- Yis a significant concern for physicians. Central. F* l. L2 o( v# W
precocious puberty (CPP), which is mediated
4 ?# h& Z+ a( w7 T9 X3 _! g8 u9 F  ^through the hypothalamic pituitary gonadal axis, has
# n% a( }: ~& Q6 c& n6 R* w9 Q' _a higher incidence of organic central nervous system
5 V+ L  Z& c# s. n! Z# K4 u, T8 Ilesions in boys.1,2 Virilization in boys, as manifested
& m6 t- f" k% ]3 q2 Yby enlargement of the penis, development of pubic
- }% X$ T1 p" ^& A) G$ d; {$ q& Xhair, and facial acne without enlargement of testi-4 N; G6 w9 A# L/ p
cles, suggests peripheral or pseudopuberty.1-3 We# o( B4 s. X" F" S
report a 16-month-old boy who presented with the# ]/ K" d" k/ w- U( I1 ^9 n
enlargement of the phallus and pubic hair develop-1 |$ F4 b, y/ V' s$ w: W6 Y
ment without testicular enlargement, which was due- f+ w. E9 }! ?! z) h2 p8 u& A
to the unintentional exposure to androgen gel used by! R, K% y8 R) h/ H3 @
the father. The family initially concealed this infor-
, d7 @+ M2 g+ W; Q) mmation, resulting in an extensive work-up for this/ _' M8 P( B4 a. `* }* T" u, d
child. Given the widespread and easy availability of. G& J& W0 D% Y4 p% I
testosterone gel and cream, we believe this is proba-
3 ?, ^* a8 a' `8 ]3 Vbly more common than the rare case report in the9 C" d8 F5 T0 P1 b& Y. d
literature.4
/ Z. ]' V; k, f) A) Y( mPatient Report# o7 B- a) b1 W; Q7 m6 M
A 16-month-old white child was referred to the
$ L- A3 r5 B" s7 i  C2 Eendocrine clinic by his pediatrician with the concern% ^% A3 u! w4 q( F  |6 k
of early sexual development. His mother noticed
3 {5 V2 b7 y7 clight colored pubic hair development when he was* t& t2 g3 l% ?9 }% K* Y
From the 1Division of Pediatric Endocrinology, 2University of* r8 c. n& X5 H) e/ u
South Alabama Medical Center, Mobile, Alabama.) m7 O2 N( h1 n
Address correspondence to: Samar K. Bhowmick, MD, FACE,# x  I& y) \4 [( k
Professor of Pediatrics, University of South Alabama, College of
- w* ~4 {2 ?) a0 H9 V6 s7 H8 g5 q- eMedicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;
2 K$ Z" q  m( X. B" ?e-mail: [email protected].! d  d: e1 G3 S' M' R( x, \5 B2 v
about 6 to 7 months old, which progressively became  I0 ?/ R1 e8 M5 @9 P- j* d+ l$ i% S
darker. She was also concerned about the enlarge-1 K  F& z6 w1 \6 F
ment of his penis and frequent erections. The child
$ V# d! {/ E) k! |: jwas the product of a full-term normal delivery, with
; ~' q( Q# [2 Ja birth weight of 7 lb 14 oz, and birth length of
9 t2 y" s9 b4 p3 E6 Q) H- B20 inches. He was breast-fed throughout the first year" \7 J5 `# ]/ I4 v& G9 K
of life and was still receiving breast milk along with
- a; H& H  q( J; T7 g4 lsolid food. He had no hospitalizations or surgery,' V, o/ o$ }) _1 Z* B$ D
and his psychosocial and psychomotor development
# S! A( l% K4 Ywas age appropriate.% |+ s$ `; k# {
The family history was remarkable for the father,. ^+ E) ?9 R% W. \
who was diagnosed with hypothyroidism at age 16,
# |. `9 w3 P0 y0 [6 g) {which was treated with thyroxine. The father’s) `. w  o) c2 ?3 t* I
height was 6 feet, and he went through a somewhat
* t" H: _% K8 |0 A+ B2 {. s1 Nearly puberty and had stopped growing by age 14.+ w$ Q+ M/ T- D5 o5 \
The father denied taking any other medication. The. L8 A5 @% ~/ z
child’s mother was in good health. Her menarche6 O& [# X5 w, N! b6 ]) O
was at 11 years of age, and her height was at 5 feet
6 m+ `+ }  l" |5 inches. There was no other family history of pre-
- ]* o5 O6 s$ H  qcocious sexual development in the first-degree rela-
) ?4 v5 \$ s' r+ vtives. There were no siblings.
% M! U  Z1 n* t- B: l, L/ OPhysical Examination! A$ c5 M& Y9 L+ r( t. }
The physical examination revealed a very active,2 n. d! A- K% K* R
playful, and healthy boy. The vital signs documented4 y, S$ s  r3 D% l/ q% Y3 y
a blood pressure of 85/50 mm Hg, his length was
" R, B% u1 }; y$ `90 cm (>97th percentile), and his weight was 14.4 kg* \6 m4 Z3 }* u! N& ?" w% n+ V
(also >97th percentile). The observed yearly growth
8 {3 w; |6 u+ U/ r+ M; F% Rvelocity was 30 cm (12 inches). The examination of( s! @6 Q0 T& B3 I- u5 C
the neck revealed no thyroid enlargement.
7 l, M2 @) t' A5 X: g6 zThe genitourinary examination was remarkable for
# {  w# B# N# \- O5 n& w* H' Y% Denlargement of the penis, with a stretched length of2 l) C9 V( K8 l
8 cm and a width of 2 cm. The glans penis was very well! }! G, I7 O# F2 V8 q$ D
developed. The pubic hair was Tanner II, mostly around5 @$ R$ ~2 z4 \
5407 Z0 {8 n( V* \( y
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from  z: z6 |# O# J4 v9 b. m. `
the base of the phallus and was dark and curled. The
$ J4 ^- Z! G0 V, T2 Xtesticular volume was prepubertal at 2 mL each.
# l" v+ L' n: j4 z: {, cThe skin was moist and smooth and somewhat  g0 H* u+ G- F) e
oily. No axillary hair was noted. There were no( [0 Q$ A+ L( e5 h" u; y
abnormal skin pigmentations or café-au-lait spots.
% z9 X& o6 i! s/ H$ ?Neurologic evaluation showed deep tendon reflex 2+
$ c% |- q$ |* K0 [; O/ Pbilateral and symmetrical. There was no suggestion$ A# e/ q. S& _
of papilledema.
  f; h0 U8 s- d# Y5 L; cLaboratory Evaluation6 @1 U/ e9 Z4 l9 F* J9 G2 @: _
The bone age was consistent with 28 months by
' K3 z( V' s$ wusing the standard of Greulich and Pyle at a chrono-
  u2 l- a! Q3 Slogic age of 16 months (advanced).5 Chromosomal
' d/ \2 [/ q- W9 G: Rkaryotype was 46XY. The thyroid function test  O5 N) M3 J- z! S  Z# h
showed a free T4 of 1.69 ng/dL, and thyroid stimu-' ?- P$ g+ H! D# T! ~, M$ E
lating hormone level was 1.3 µIU/mL (both normal).( X0 V( ^0 ^: Z# a9 s0 Q
The concentrations of serum electrolytes, blood
: ~2 [; d$ E/ J/ M. k4 Rurea nitrogen, creatinine, and calcium all were# X  \. O- i" V6 v+ {5 F# d
within normal range for his age. The concentration
) l! f+ `3 g' o6 f0 Fof serum 17-hydroxyprogesterone was 16 ng/dL1 C0 F7 J7 Q2 v
(normal, 3 to 90 ng/dL), androstenedione was 20, T2 m4 e8 ?! _4 R$ {6 G
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-
5 E9 k4 T9 S5 T8 H$ \9 [terone was 38 ng/dL (normal, 50 to 760 ng/dL),
- k: }1 |+ ?! }desoxycorticosterone was 4.3 ng/dL (normal, 7 to
' I  b  ~4 X9 w6 _49ng/dL), 11-desoxycortisol (specific compound S)9 z7 h: i8 P7 ?1 p
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-; @5 h: i9 n9 R  W) u/ b" b5 C% ~
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total6 t- v& }  ~* \8 m" p
testosterone was 60 ng/dL (normal <3 to 10 ng/dL),$ R: O; }' n! e6 R( m
and β-human chorionic gonadotropin was less than3 ^3 y1 U, f8 A/ {' X! H* |/ d
5 mIU/mL (normal <5 mIU/mL). Serum follicular
$ E" Q6 U7 b# nstimulating hormone and leuteinizing hormone
) `0 ^& Z  i9 gconcentrations were less than 0.05 mIU/mL+ ~# X( w2 q: B9 q. O
(prepubertal).
' p* E. p" m5 l: i7 mThe parents were notified about the laboratory4 H; u/ @! U2 W/ b  ^
results and were informed that all of the tests were
" b" \) p3 O& Anormal except the testosterone level was high. The
5 X( T' I( I. q3 T/ X- i' `0 _follow-up visit was arranged within a few weeks to
- y' V  W$ p: U4 f/ k, vobtain testicular and abdominal sonograms; how-
( Q4 ^2 _" `% w3 m- S3 xever, the family did not return for 4 months.. [7 G( Z: J9 z) W; X2 H
Physical examination at this time revealed that the
3 S8 r# k$ O1 H) C: ychild had grown 2.5 cm in 4 months and had gained
8 u" H3 S) e* S# D- ^6 J, o8 O2 kg of weight. Physical examination remained8 U5 t% W+ S1 ~$ x4 ?7 e
unchanged. Surprisingly, the pubic hair almost com-( D# R. y. ^  U: d. f
pletely disappeared except for a few vellous hairs at/ e( o$ w$ E, b  q, i
the base of the phallus. Testicular volume was still 2
$ G- f* l, [( m$ x! Z4 P# I1 z8 gmL, and the size of the penis remained unchanged.
; f* ]/ V3 y. pThe mother also said that the boy was no longer hav-0 z, N5 ?6 k9 d9 |1 ?  Z
ing frequent erections.
9 d/ M: f1 U# r5 n8 o: L. CBoth parents were again questioned about use of6 f. g6 x5 y+ |) ~% ?. a( d
any ointment/creams that they may have applied to
! X5 G: }& C  e% A; a& Nthe child’s skin. This time the father admitted the
" F7 h/ N5 f$ B* Z8 o: VTopical Testosterone Exposure / Bhowmick et al 541
% m* _$ t8 u  euse of testosterone gel twice daily that he was apply-* c9 D) d8 d3 p# `3 ]1 d6 M
ing over his own shoulders, chest, and back area for7 w2 y$ c# X; ~& H, c, X1 h2 N8 n" o
a year. The father also revealed he was embarrassed* j8 L) A3 B1 N
to disclose that he was using a testosterone gel pre-' I9 O+ |) I  s# t$ f, E
scribed by his family physician for decreased libido  N9 p! Y; a; r  z( D. k- \+ n( A$ i) t
secondary to depression.
* X3 z: ]0 K- p  t* l# f4 G7 H2 VThe child slept in the same bed with parents.
8 D/ {& U8 t3 @7 S6 g) M" q% SThe father would hug the baby and hold him on his
4 w4 I/ L0 P& z% E1 F# A' Vchest for a considerable period of time, causing sig-
1 ^$ q( e7 O7 ?2 [9 H$ m! D9 x4 e; anificant bare skin contact between baby and father.% `8 F- B3 Q2 {/ Z* a. d
The father also admitted that after the phone call,) q5 X4 L4 P' Q9 O. _* M4 O! {1 I. y
when he learned the testosterone level in the baby8 v. O( c- f+ A, V: H2 p
was high, he then read the product information& ~2 x6 h* A+ x5 o/ u' R
packet and concluded that it was most likely the rea-  p% ^  H/ r0 P* c" e, Q
son for the child’s virilization. At that time, they8 Y6 Q; t: T. r) q) m, h; I3 N
decided to put the baby in a separate bed, and the
1 w3 u( q8 ?9 ^/ jfather was not hugging him with bare skin and had
  ^, ?) x, c0 ^6 N6 [been using protective clothing. A repeat testosterone, i- }4 T0 M; e& b2 I2 j0 I
test was ordered, but the family did not go to the
$ U! h- e- t+ [" M4 k7 \0 ?( {9 Elaboratory to obtain the test.
! R6 C/ U% ^- G% }Discussion5 b* `% v8 X; O' p0 E$ D% d
Precocious puberty in boys is defined as secondary
8 K6 a0 d* ^( rsexual development before 9 years of age.1,43 B* s% x0 E( q4 q
Precocious puberty is termed as central (true) when
- o3 A  c2 S# l- q. ?" pit is caused by the premature activation of hypo-) k/ ?% O; A% D6 D- S3 D$ W
thalamic pituitary gonadal axis. CPP is more com-
5 n( A+ {) @7 f0 ?7 J/ z- \mon in girls than in boys.1,3 Most boys with CPP- e# @( d: p. A) R( |+ \; V- f
may have a central nervous system lesion that is% a8 I9 n/ C7 X  {. K
responsible for the early activation of the hypothal-/ E1 N% Q$ ?% d, j
amic pituitary gonadal axis.1-3 Thus, greater empha-: M5 [2 {+ n. n6 V1 H2 k
sis has been given to neuroradiologic imaging in
- D! r3 f: h: \$ G  S* X# z* zboys with precocious puberty. In addition to viril-
$ k5 S+ R/ `) o" ?$ R7 V) u) x9 C+ Cization, the clinical hallmark of CPP is the symmet-3 Y$ o# y. U* Q( @0 n5 u' S
rical testicular growth secondary to stimulation by
: O! }* d  P& y, a& b7 P& t7 jgonadotropins.1,3
" V: a7 {1 e' SGonadotropin-independent peripheral preco-
/ o0 _2 f" q/ J, L/ l6 I3 {cious puberty in boys also results from inappropriate9 S9 U2 y3 z. m4 ~3 d/ h
androgenic stimulation from either endogenous or
) I- Q3 J: x, j1 O; z( yexogenous sources, nonpituitary gonadotropin stim-0 g( O8 v( e% z7 K+ X: Q; S8 u
ulation, and rare activating mutations.3 Virilizing
8 ?. L- M/ p  v! l1 D+ X& kcongenital adrenal hyperplasia producing excessive. W# L; `, p9 n# |, u( ~$ d
adrenal androgens is a common cause of precocious
9 V/ M" v; D5 Y! s' \puberty in boys.3,4
( K% E6 w, }' w7 h1 f2 F; qThe most common form of congenital adrenal1 D- Y: z( _+ k  F( I" R3 u
hyperplasia is the 21-hydroxylase enzyme deficiency.
: s& @- t$ a9 B  q1 mThe 11-β hydroxylase deficiency may also result in
5 c8 t$ h: \  B. s$ M9 _0 }excessive adrenal androgen production, and rarely,
. a/ w1 H" ~7 ran adrenal tumor may also cause adrenal androgen
" a! f1 ?9 F- ^4 R7 z* hexcess.1,3
, x% U; N$ Y# V" C5 xat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
7 ]7 I5 V7 e" b8 ~( l# E8 _542 Clinical Pediatrics / Vol. 46, No. 6, July 2007
1 `* ]& ^5 X# e1 f) aA unique entity of male-limited gonadotropin-
8 p! K+ O( f/ c; q/ f( d5 Y" Cindependent precocious puberty, which is also known
4 h4 I- u. J0 Pas testotoxicosis, may cause precocious puberty at a
7 B3 Y6 A' E6 w" bvery young age. The physical findings in these boys
- p0 U; ]1 ^4 o5 ~' W$ Hwith this disorder are full pubertal development,+ q' h5 h7 F4 b/ {1 X
including bilateral testicular growth, similar to boys
! E6 a" ~; U" ~0 ]/ uwith CPP. The gonadotropin levels in this disorder
: a$ s4 ^5 Q! n. Kare suppressed to prepubertal levels and do not show) s3 C% a% j8 i' G
pubertal response of gonadotropin after gonadotropin-
7 n1 K- v% A" O" v& e! g8 x# e" sreleasing hormone stimulation. This is a sex-linked
# a7 s$ ?- w/ M! Z2 s, iautosomal dominant disorder that affects only
4 B0 o/ L7 Q" V& ?; _3 d3 [, hmales; therefore, other male members of the family
7 ~* S; F; U4 J0 Q4 w; Umay have similar precocious puberty.3/ `& }; H  a  T  C7 [9 k9 h
In our patient, physical examination was incon-
# n2 \/ H0 [. B) J" s/ ^+ ~sistent with true precocious puberty since his testi-2 _- y3 ]8 {$ w+ q. l; }+ I" u
cles were prepubertal in size. However, testotoxicosis# `% e  \3 J- I+ a/ Y
was in the differential diagnosis because his father0 a! W7 ~  l+ |, r  C. v5 f
started puberty somewhat early, and occasionally,
! a7 {1 w( r! C3 Z! `- P1 jtesticular enlargement is not that evident in the
* V! n0 F9 @* Xbeginning of this process.1 In the absence of a neg-, g1 f, S, w' h+ E, ?/ G6 h
ative initial history of androgen exposure, our4 N( F- s) C8 R0 M7 O
biggest concern was virilizing adrenal hyperplasia,* i6 H4 Z/ ?' ?0 U
either 21-hydroxylase deficiency or 11-β hydroxylase
' W8 \4 o% X+ \: ]/ ~. z( adeficiency. Those diagnoses were excluded by find-
$ T9 x4 Z, G1 ^8 c% Ring the normal level of adrenal steroids.* u, @: R: z* s, U- a% T4 P
The diagnosis of exogenous androgens was strongly
7 h9 t7 r9 M, [. e: Jsuspected in a follow-up visit after 4 months because
8 ?6 m' k+ `# L  [the physical examination revealed the complete disap-
& S8 A; ~2 s( i5 a1 {$ hpearance of pubic hair, normal growth velocity, and( i1 ?8 S6 U5 A; v# Z0 Y6 @  A
decreased erections. The father admitted using a testos-
( P3 \: y: v+ n% p" ]3 Dterone gel, which he concealed at first visit. He was
1 A  _& s% C8 S9 t1 T5 \1 ausing it rather frequently, twice a day. The Physicians’
- n, m2 q+ R* x8 fDesk Reference, or package insert of this product, gel or
5 L# m0 G. C$ Q" u9 l5 {cream, cautions about dermal testosterone transfer to
5 j# Q: O! e! e7 I- kunprotected females through direct skin exposure.1 ^8 `# m* g- g( C# m. x( ?4 n
Serum testosterone level was found to be 2 times the5 j% n# b* [. z3 K& K1 P/ G) ~
baseline value in those females who were exposed to
3 S) g0 }! ^6 R/ F+ ]# ]0 Teven 15 minutes of direct skin contact with their male: R% e5 }0 \. k+ w% k! s1 B
partners.6 However, when a shirt covered the applica-
: d* k  q# d; u5 ]6 q* e7 Ztion site, this testosterone transfer was prevented.
6 D  V5 X" `* m* kOur patient’s testosterone level was 60 ng/mL,8 g, p, M  k) M1 l/ j; v. }2 K0 o
which was clearly high. Some studies suggest that
) R4 E9 Y$ L, h$ |, @5 g0 xdermal conversion of testosterone to dihydrotestos-
4 W  ~# k; Z6 z+ \terone, which is a more potent metabolite, is more) f9 g* s/ X& b1 |, \
active in young children exposed to testosterone
4 R. t* q4 |% M" p$ I+ ]exogenously7; however, we did not measure a dihy-
# ~( n7 H3 N4 ~5 c4 }drotestosterone level in our patient. In addition to
! l6 [6 b$ B% ovirilization, exposure to exogenous testosterone in
6 R9 z2 L9 x9 v! ~) C7 achildren results in an increase in growth velocity and
" }4 U4 V0 y( `2 b8 ]5 U- Hadvanced bone age, as seen in our patient.6 U/ j& L* Q' Y  u5 j8 H# }
The long-term effect of androgen exposure during
% O) O! ^7 {/ j* e1 Aearly childhood on pubertal development and final( \4 t  V1 n7 W- b
adult height are not fully known and always remain( y  W$ E1 J( q- @
a concern. Children treated with short-term testos-
3 A' F3 ~% b& u3 `: e* jterone injection or topical androgen may exhibit some
! A: C, j8 S9 ]acceleration of the skeletal maturation; however, after
. T! [4 D$ A9 J1 a* w9 J5 Bcessation of treatment, the rate of bone maturation
& X, ?8 g! U( v& P7 Ldecelerates and gradually returns to normal.8,9- {3 B, W- z$ d+ n7 w; q" V2 N- M* y
There are conflicting reports and controversy4 t7 w, i# U% D3 q4 z
over the effect of early androgen exposure on adult3 J" N/ A$ H3 \6 N
penile length.10,11 Some reports suggest subnormal4 [9 q, y! o  C1 U& O7 a
adult penile length, apparently because of downreg-1 l/ ?* g- r  q3 P1 Z% e
ulation of androgen receptor number.10,12 However,5 a, U! n% E* g
Sutherland et al13 did not find a correlation between3 B  `: g+ k- l- G
childhood testosterone exposure and reduced adult
0 ~3 k1 q# V4 R: Ipenile length in clinical studies.
' H* g7 }- S! x" LNonetheless, we do not believe our patient is
4 \/ |, @2 P# w# c& egoing to experience any of the untoward effects from
' R- i; ?3 }5 Stestosterone exposure as mentioned earlier because
8 b3 h+ e$ B) kthe exposure was not for a prolonged period of time.0 e) j; @  h0 P7 C( M& ]
Although the bone age was advanced at the time of
" ]9 Q4 _0 _" r# g! a% E/ jdiagnosis, the child had a normal growth velocity at+ i( O9 N2 k2 ~& d1 X; w
the follow-up visit. It is hoped that his final adult
9 m( J3 j  C( N4 |$ Vheight will not be affected.5 D. [$ k5 j" G% I# u( H* f" }# {4 @
Although rarely reported, the widespread avail-
7 [  b: H: |% e" U2 n+ x  S3 F7 Lability of androgen products in our society may
! p$ o+ J4 Y; l3 kindeed cause more virilization in male or female
1 v+ W  b" R' zchildren than one would realize. Exposure to andro-
7 q( Q+ E8 T+ ]0 Tgen products must be considered and specific ques-! p1 U: \) R( Y4 v- B  N& ^+ C
tioning about the use of a testosterone product or6 Q7 h: H, K! F8 y
gel should be asked of the family members during
7 K: a* c9 A: p7 I0 S6 q4 Othe evaluation of any children who present with vir-
" V4 Z. E( |. }- Eilization or peripheral precocious puberty. The diag-: x* N- K  r% x4 m! F
nosis can be established by just a few tests and by* N. Z: V+ z4 R2 W) d
appropriate history. The inability to obtain such a
. I" b0 r9 k0 ^# G) d. x1 Y4 {/ S0 `8 |history, or failure to ask the specific questions, may9 X5 e6 j- A8 l  h$ e7 j
result in extensive, unnecessary, and expensive
5 h3 v% g+ u% J8 W4 O+ ~9 b+ l) pinvestigation. The primary care physician should be
/ X/ {, f% P7 ]& Gaware of this fact, because most of these children
* H. X. z- v- V" ]) Pmay initially present in their practice. The Physicians’6 _# x9 l* ?; F/ B  E8 O2 I0 L2 H$ K# \
Desk Reference and package insert should also put a5 z4 F2 ?3 z: W% T. w. y, g
warning about the virilizing effect on a male or: B  i! b  h9 k! q1 B
female child who might come in contact with some-4 h* ?3 F# y1 A4 K- [" u
one using any of these products.
5 B" J0 B, |- sReferences9 ~4 f2 J! g3 s/ Y* z
1. Styne DM. The testes: disorder of sexual differentiation
7 x0 c! c  ~, j9 J9 J5 P. q( a1 xand puberty in the male. In: Sperling MA, ed. Pediatric) D' l, u( q( Z+ y9 d
Endocrinology. 2nd ed. Philadelphia, PA: WB Saunders;6 V$ v# K/ z2 ?, L
2002: 565-628.
2 L  V2 e8 ?4 v2 M2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious
' g% z$ Q1 h; ?& v" xpuberty in children with tumours of the suprasellar pineal
發表於 2025-1-11 22:18:01 | 顯示全部樓層
女厕偷拍辅导班主任尿尿老师的逼很嫩还有一点
發表於 2025-1-17 16:31:39 | 顯示全部樓層
4个什么样的?
發表於 2025-1-19 02:41:05 | 顯示全部樓層
4 `1 y6 W  p/ @% q) A: q* R1 a
精妙絕倫的精品,感謝啊!期待你更多更好的創作哦!
發表於 2025-3-11 12:31:56 | 顯示全部樓層
么好吧v进化过程就回国参加发uft成就和;哦i回来就好v科技股份兄弟人的 路由公开vu个v库每年b
發表於 2025-4-8 11:10:25 | 顯示全部樓層
精妙絕倫的精品,感謝啊!期待你更多更好的創作哦!
您需要登錄後才可以回帖 登錄 | 立即注册

本版積分規則


快速回復 返回頂部 返回列表