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發表於 2025-1-4 03:25:35 | 顯示全部樓層
Sexual Precocity in a 16-Month-Old
4 o: p' \; K4 `- }Boy Induced by Indirect Topical
3 m8 J. B$ [' V- T5 O( R3 j% I8 tExposure to Testosterone( s% Q+ }2 q/ V4 `  F
Samar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,26 a' O! ]) j( E
and Kenneth R. Rettig, MD1
9 r% M+ D! [# N0 RClinical Pediatrics9 s% g% F4 v6 W. u" A
Volume 46 Number 6" p! X! c: \- v5 t- L
July 2007 540-543+ o7 X9 B. W0 S% Y7 z
© 2007 Sage Publications, E9 Y; g& y1 z" a% a- B
10.1177/00099228062966514 u3 {* M" t! u2 B4 P3 T
http://clp.sagepub.com9 a! V; g; U3 z, m9 ]1 x# O- [
hosted at
. L6 y. L# D$ ?/ f: f, W3 w6 W/ Fhttp://online.sagepub.com
# c8 e  x9 u7 o/ ~4 t  j2 s" |Precocious puberty in boys, central or peripheral,& }5 I0 ~! {* _! [5 s" w' E' \
is a significant concern for physicians. Central
8 \$ @* C$ [# u3 W5 S" p+ {precocious puberty (CPP), which is mediated( N& B% J% o3 Y
through the hypothalamic pituitary gonadal axis, has
  ?' P8 d* x7 ]0 ^: Q( `& A3 ya higher incidence of organic central nervous system
3 c! h  X+ e& Q& K* _lesions in boys.1,2 Virilization in boys, as manifested1 f5 p, t+ d8 k7 ?4 ]9 z. _9 G" c
by enlargement of the penis, development of pubic) N! {2 J' W8 J4 v% o0 ^
hair, and facial acne without enlargement of testi-8 i( {% K1 f2 u) O& N3 h+ i
cles, suggests peripheral or pseudopuberty.1-3 We
3 Y  ]+ X7 A4 q8 P/ T/ T+ ^7 yreport a 16-month-old boy who presented with the
) J8 w- B& m& v$ k  L$ Zenlargement of the phallus and pubic hair develop-" o" F! _, J% n
ment without testicular enlargement, which was due
; C: ^5 j2 l' W" gto the unintentional exposure to androgen gel used by
! ]2 x) U$ P1 Wthe father. The family initially concealed this infor-
- D. n: W, q2 R+ @! j0 Wmation, resulting in an extensive work-up for this
) ]0 F+ _% z) x$ N6 a( Achild. Given the widespread and easy availability of
$ v$ I- ^$ S) y) utestosterone gel and cream, we believe this is proba-
( O# q- n3 ~) K* }bly more common than the rare case report in the$ I- G, t6 J  s1 l- ?. p
literature.4
( [  s% j9 M% J' BPatient Report* m* f' h% s& s$ o
A 16-month-old white child was referred to the
! t2 D8 {" {# \endocrine clinic by his pediatrician with the concern
: j& e, u  r2 X, s/ V2 n" Kof early sexual development. His mother noticed8 a% |5 W9 o2 g8 k9 w3 F
light colored pubic hair development when he was- e) S: ~# M* D3 K8 y
From the 1Division of Pediatric Endocrinology, 2University of# Z( i2 a- w; j$ U# U
South Alabama Medical Center, Mobile, Alabama.. j  G& j+ O( A- x. B8 t: w  x
Address correspondence to: Samar K. Bhowmick, MD, FACE,
' \/ L0 b  W4 j, L7 ZProfessor of Pediatrics, University of South Alabama, College of; H9 A, q# z3 ]- i5 U2 \
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;5 `0 g  j! x  r# y- G
e-mail: [email protected]., V1 l* o# n5 d% J
about 6 to 7 months old, which progressively became# e2 D8 J3 }5 j2 a# t. c" {
darker. She was also concerned about the enlarge-1 S. ~: [( s; o% z4 b/ W6 v5 A& A
ment of his penis and frequent erections. The child
. x  e, ?" s6 V4 ?; Lwas the product of a full-term normal delivery, with
; y' o4 w& c- I2 S: c5 V. x9 l- o4 ?a birth weight of 7 lb 14 oz, and birth length of
+ _' g" S; Y% L( D. ]8 u20 inches. He was breast-fed throughout the first year+ m3 d( y; C4 ~' _4 \6 w" S
of life and was still receiving breast milk along with
) j: Q1 w6 j& X$ ^) I; f9 d5 wsolid food. He had no hospitalizations or surgery,; t' s& M5 q& g4 \
and his psychosocial and psychomotor development! J% W0 s, X, j! H
was age appropriate.9 @, z' X/ [& `, u( ^' [
The family history was remarkable for the father,
2 S$ `3 |9 F  ]( C$ p0 E; _who was diagnosed with hypothyroidism at age 16,
! `' d, _; k: W4 _+ `. E9 w7 E0 n2 Jwhich was treated with thyroxine. The father’s, \: M; w  u. z5 E- j5 D
height was 6 feet, and he went through a somewhat. E6 x0 C1 T" a0 F3 o# e
early puberty and had stopped growing by age 14.9 u! R5 e& t0 z% C% q1 s
The father denied taking any other medication. The2 O5 D2 V- W1 T. S( l+ j9 H
child’s mother was in good health. Her menarche
% _0 \$ \- j  Ywas at 11 years of age, and her height was at 5 feet6 ^) o5 }/ q6 d
5 inches. There was no other family history of pre-3 N( y9 N9 C" ]4 N$ n! I
cocious sexual development in the first-degree rela-
) |; a; E; ]7 k4 I0 _8 \tives. There were no siblings.3 Y/ h/ n& q( b7 v4 O; g
Physical Examination
% ^' N- y1 t2 x5 I6 b! ZThe physical examination revealed a very active,+ n& ?0 @9 K$ V8 c& `
playful, and healthy boy. The vital signs documented7 r+ }# |- {, w0 t! C2 X
a blood pressure of 85/50 mm Hg, his length was
+ c5 t, t9 Q, Y4 m3 C" Y; m+ \90 cm (>97th percentile), and his weight was 14.4 kg
% V( {5 s$ ~) x8 Q9 ]. M6 i& S(also >97th percentile). The observed yearly growth
& i' Z: R% p( g# ^- ~velocity was 30 cm (12 inches). The examination of
4 O$ F0 b* z5 r$ B! ?' tthe neck revealed no thyroid enlargement.
$ `- ^- q; Q1 D+ J2 ]( qThe genitourinary examination was remarkable for
9 @1 b3 p% R; Q) n  u! {enlargement of the penis, with a stretched length of
) X. N# O' Z7 M- s8 cm and a width of 2 cm. The glans penis was very well
+ B; t' C4 Y9 q( t6 q6 _% U  Ddeveloped. The pubic hair was Tanner II, mostly around; I1 q6 d  Z" W7 a6 B
540. v( F& ]2 _7 w
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from6 K1 M5 E2 ~1 a( a
the base of the phallus and was dark and curled. The8 u( C6 e. n! e- H- K* D
testicular volume was prepubertal at 2 mL each.
: }9 d3 f+ M+ A5 P9 ^# `- K1 wThe skin was moist and smooth and somewhat- _/ x- Z) n8 H# a* t: `
oily. No axillary hair was noted. There were no
5 g" @4 s% d2 \( O! ^abnormal skin pigmentations or café-au-lait spots.1 A2 f+ D, ^% K6 j1 F: ~
Neurologic evaluation showed deep tendon reflex 2+
1 l- W# Z7 a3 `; Z" w# J% Zbilateral and symmetrical. There was no suggestion
3 G9 t6 \( W0 o7 @" Xof papilledema., S* K, @3 q3 e+ Z6 B8 H8 e
Laboratory Evaluation# S; \+ p* S( v/ h% @. W% Q! o
The bone age was consistent with 28 months by% q( z8 r0 U: y
using the standard of Greulich and Pyle at a chrono-
6 y1 r' i% y2 q2 y4 Llogic age of 16 months (advanced).5 Chromosomal
; h& O& K2 E( W) kkaryotype was 46XY. The thyroid function test
5 c+ d; i  P! w9 v: ?* \showed a free T4 of 1.69 ng/dL, and thyroid stimu-, `; E( ?+ n% i: o
lating hormone level was 1.3 µIU/mL (both normal).
9 t! Q) C" L* s- R! }6 }2 MThe concentrations of serum electrolytes, blood
$ q1 c; C5 U0 N8 n* N1 ourea nitrogen, creatinine, and calcium all were
! ~9 ]$ l$ x4 S3 r8 L- }; ~within normal range for his age. The concentration, z0 a) Z6 T% t" t5 c
of serum 17-hydroxyprogesterone was 16 ng/dL
: M( ~% F* U7 e; G9 V(normal, 3 to 90 ng/dL), androstenedione was 20
, I7 d5 e& ]# V6 n# Y4 [ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-
1 s* V! q0 S5 c& G8 \- ~- B" Lterone was 38 ng/dL (normal, 50 to 760 ng/dL),
3 Y. e1 E  Z, X. R: }, ddesoxycorticosterone was 4.3 ng/dL (normal, 7 to0 r7 ]# I+ p4 ^0 j
49ng/dL), 11-desoxycortisol (specific compound S)
. W1 u2 R4 X7 y1 _8 P2 ~was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-9 P9 B* \7 z% v: p! i2 ]6 d
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total3 Y) k: T  a; {) o8 D8 w8 Y/ ]' Z
testosterone was 60 ng/dL (normal <3 to 10 ng/dL),. R6 M5 ?- S3 b8 f0 q+ ~: L& K
and β-human chorionic gonadotropin was less than
8 Q. k# i7 {6 d) }8 ^5 mIU/mL (normal <5 mIU/mL). Serum follicular
& R7 \1 j# |) K5 rstimulating hormone and leuteinizing hormone
2 I7 y% X: a. b4 H% Q# Gconcentrations were less than 0.05 mIU/mL
: i- \4 o4 w( Q7 B(prepubertal).; V! {1 R# z4 c, m- a$ `- p
The parents were notified about the laboratory
! m4 l- E. D: r  b4 o! Tresults and were informed that all of the tests were
+ I9 r' E/ l5 Lnormal except the testosterone level was high. The
5 }3 V" G2 W2 D. z: K5 Ifollow-up visit was arranged within a few weeks to% o6 P; T' j* J
obtain testicular and abdominal sonograms; how-
4 `6 M+ @, C3 D0 }1 h1 ]  d# hever, the family did not return for 4 months.
7 N: q( \. A% A7 r- s0 u$ w! `5 W2 ePhysical examination at this time revealed that the
4 A- b1 E* q! N, v9 _: t8 @child had grown 2.5 cm in 4 months and had gained5 w$ a# V9 i' `
2 kg of weight. Physical examination remained& T6 H" u4 `9 Z+ C* x
unchanged. Surprisingly, the pubic hair almost com-, p6 ?7 j0 y/ L5 s! r$ p
pletely disappeared except for a few vellous hairs at
; r" S7 B, Z- C, Q6 c! e. kthe base of the phallus. Testicular volume was still 2: Y0 G! ]* `: j5 B; G, b$ U3 ~
mL, and the size of the penis remained unchanged.
7 [" Z4 n+ H7 b: L, aThe mother also said that the boy was no longer hav-
- s( U! P9 T- V* ^( d  \& `1 Zing frequent erections.  g2 G( ]$ F5 |7 _
Both parents were again questioned about use of
) b- a" a1 n% L2 D, w( n5 F; c; {any ointment/creams that they may have applied to3 d- ]9 C9 A7 A) `6 {* G
the child’s skin. This time the father admitted the, S# `, W& k( I9 Y5 ]0 v" C: d% |
Topical Testosterone Exposure / Bhowmick et al 541
: _- }( W; f) F) ~8 t5 g+ @0 ^0 Tuse of testosterone gel twice daily that he was apply-
* z& L& G5 b; _2 v8 j- qing over his own shoulders, chest, and back area for
7 S" c4 v( H; E9 N3 F0 t) ea year. The father also revealed he was embarrassed
; C) m" r+ N+ t' dto disclose that he was using a testosterone gel pre-% L5 E- x; W' h) L
scribed by his family physician for decreased libido8 b2 A) Z! n+ n
secondary to depression.3 ?' V# s4 P3 O, f& `8 n
The child slept in the same bed with parents.% l8 h; |7 e$ R; {- P' \
The father would hug the baby and hold him on his
7 [4 m1 B7 M! H, S$ n) [4 L' q$ [chest for a considerable period of time, causing sig-
- q) E# \+ W. s/ I+ a) G  _4 Xnificant bare skin contact between baby and father.
4 c' R( k- U. I2 z7 @5 ~The father also admitted that after the phone call,
, G# e+ |1 h5 W; j  r- |when he learned the testosterone level in the baby
5 S% D1 X/ x0 L4 b! V  ~was high, he then read the product information3 E5 z% t( I! z2 s
packet and concluded that it was most likely the rea-5 N9 X2 z3 P5 V7 M# L% Z  }( u8 V% A
son for the child’s virilization. At that time, they0 v) w5 P  I% g+ {3 ~; R2 r3 X
decided to put the baby in a separate bed, and the
3 H9 T: C) F9 F1 `' d( Tfather was not hugging him with bare skin and had7 h% c# W/ t2 L& T, e- |
been using protective clothing. A repeat testosterone& H( G+ C' s( n: a) c" P+ o
test was ordered, but the family did not go to the
5 X2 U# r, T# ?& Z% xlaboratory to obtain the test.- ]9 \( k+ V. v( E
Discussion/ @* B* ]3 O: g
Precocious puberty in boys is defined as secondary! |( T# N' L: x8 R
sexual development before 9 years of age.1,4
5 o  {  _( a  h( e6 APrecocious puberty is termed as central (true) when" J- u7 E: f6 J. k- {; }
it is caused by the premature activation of hypo-
( W; h% B% v! s8 U- a& mthalamic pituitary gonadal axis. CPP is more com-
8 v* {  l: W0 J1 X1 S+ Emon in girls than in boys.1,3 Most boys with CPP5 a8 W- Z. \1 p% m# U, U$ n/ ^0 N2 h
may have a central nervous system lesion that is
! h9 a) C+ e3 ~' D9 V+ V4 n" rresponsible for the early activation of the hypothal-
- Z% n, F6 k& `amic pituitary gonadal axis.1-3 Thus, greater empha-4 g" O  n! t. k" }+ l& s
sis has been given to neuroradiologic imaging in
) A! i* d0 Y! p% Hboys with precocious puberty. In addition to viril-4 O; m0 f. P% a% f7 e
ization, the clinical hallmark of CPP is the symmet-
. ~1 a. n& d$ c+ ^rical testicular growth secondary to stimulation by/ q; G0 L' I# F3 z0 e
gonadotropins.1,3& S' u; k* C' J4 J; j' s
Gonadotropin-independent peripheral preco-
4 y3 ^! T* X! G' s5 d% v  bcious puberty in boys also results from inappropriate
& W" F9 f+ ^: L* t" D+ Jandrogenic stimulation from either endogenous or
0 F) A4 @, ^6 zexogenous sources, nonpituitary gonadotropin stim-( A. N( C1 ~/ v3 A, F8 W
ulation, and rare activating mutations.3 Virilizing
: E: C. x5 I1 S+ ~% ^# |. ]congenital adrenal hyperplasia producing excessive
( L# k' p6 H# z% oadrenal androgens is a common cause of precocious
) Y7 N' M5 @! s7 Npuberty in boys.3,4
6 H! g9 j: V' e! |# _: B9 N/ v7 cThe most common form of congenital adrenal$ V4 k# l: L- e! Q4 h' i
hyperplasia is the 21-hydroxylase enzyme deficiency.
, u& v+ J- I5 @8 H! i" RThe 11-β hydroxylase deficiency may also result in
) q; v. b, l) Z5 w7 @% z, b) rexcessive adrenal androgen production, and rarely,
& _# p# w8 d* V* L' x2 San adrenal tumor may also cause adrenal androgen8 v9 y! u: X7 j3 v
excess.1,3
# M+ [) P# J4 ^* b' lat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from7 V+ O( T% N. o7 H9 \
542 Clinical Pediatrics / Vol. 46, No. 6, July 2007& P8 A# c( W( _$ u
A unique entity of male-limited gonadotropin-
2 J- f' f9 d3 G, l% windependent precocious puberty, which is also known
. ~8 h* @8 }& C$ P0 g0 i7 m  Q7 uas testotoxicosis, may cause precocious puberty at a8 f* u9 X; e/ l9 G7 X' f
very young age. The physical findings in these boys  W, R3 ^. a. R4 D$ a  K
with this disorder are full pubertal development,
2 Y2 o8 U3 a/ q  `, u# @; u" e0 ?4 x+ Bincluding bilateral testicular growth, similar to boys- @+ Y7 @- I, V( c
with CPP. The gonadotropin levels in this disorder
$ G/ ~( \& D/ L' C  q9 X+ ^5 Rare suppressed to prepubertal levels and do not show8 C1 N+ d# X/ j. \9 l; _
pubertal response of gonadotropin after gonadotropin-
/ Z7 C8 ~! v& i, g6 g0 rreleasing hormone stimulation. This is a sex-linked
3 a! p( @" |/ A" {8 t( {autosomal dominant disorder that affects only
6 v; t, b* I# lmales; therefore, other male members of the family
! ~" n' n) i* Y& F) }/ wmay have similar precocious puberty.3
7 h& e* y3 L" A8 j1 MIn our patient, physical examination was incon-- @1 O1 ~9 `) F% @8 y- q
sistent with true precocious puberty since his testi-
3 C( Z  ^1 F! p/ u6 W2 h$ ecles were prepubertal in size. However, testotoxicosis! K8 G- ~2 g( ~* L9 l* k7 x. M
was in the differential diagnosis because his father
: z0 U( o8 l3 x. ~/ U0 x7 x% dstarted puberty somewhat early, and occasionally,
- U/ s, w" [8 F) `: P) I- ptesticular enlargement is not that evident in the
1 o0 l! L4 F4 b$ Mbeginning of this process.1 In the absence of a neg-; M5 x$ P! A+ g9 v* a* J
ative initial history of androgen exposure, our& M% h4 c  d1 L, g) {6 Z+ P
biggest concern was virilizing adrenal hyperplasia,
7 v, R. }4 c& K: o% w/ d8 Eeither 21-hydroxylase deficiency or 11-β hydroxylase
6 F+ x5 t! G. m6 u, N# s2 Hdeficiency. Those diagnoses were excluded by find-% C) A& u2 n' D& a5 O
ing the normal level of adrenal steroids.0 n: O+ q# Q( t4 A
The diagnosis of exogenous androgens was strongly: C0 _; k! {7 x/ ^: K, I4 K, R
suspected in a follow-up visit after 4 months because1 a4 Y6 `# C/ j) \
the physical examination revealed the complete disap-
1 Q6 `: @1 U5 D9 P8 b( O( d- W9 Upearance of pubic hair, normal growth velocity, and' ^. q- C9 N9 O( o, c# S* o; v' U. X
decreased erections. The father admitted using a testos-' L. {. \& f3 @/ }
terone gel, which he concealed at first visit. He was
0 d5 v& O0 }7 N* H- c+ }using it rather frequently, twice a day. The Physicians’
, V5 n1 V. Y8 N; rDesk Reference, or package insert of this product, gel or
/ R6 ~0 ~- u9 A4 Dcream, cautions about dermal testosterone transfer to+ f1 ]$ ]( Z) \  _: }
unprotected females through direct skin exposure.
4 |( [: S' @/ b9 ASerum testosterone level was found to be 2 times the
0 s9 H9 h$ _9 d/ Y' jbaseline value in those females who were exposed to3 S3 h9 P5 D* Y- P% C- |
even 15 minutes of direct skin contact with their male
/ @! |9 M& ]) `0 hpartners.6 However, when a shirt covered the applica-
. O5 v5 ^/ [/ s- k$ {5 Xtion site, this testosterone transfer was prevented." W' D8 ^4 Q, U
Our patient’s testosterone level was 60 ng/mL," ^0 Z# _* J0 {
which was clearly high. Some studies suggest that3 w% b+ f, e( A0 _
dermal conversion of testosterone to dihydrotestos-
9 {( v8 k8 K3 ^  fterone, which is a more potent metabolite, is more: y4 R) j& r' |4 ^
active in young children exposed to testosterone" G! H0 g+ G0 U3 k. v$ C  V
exogenously7; however, we did not measure a dihy-
$ q7 \' q( B  v: C7 j( E' u# f5 Q! x$ wdrotestosterone level in our patient. In addition to
& R) N3 T4 b4 D" t1 Tvirilization, exposure to exogenous testosterone in  G6 T2 x$ J* v. |# t/ L
children results in an increase in growth velocity and! Y6 P& G$ e: o7 O" L- x# p7 M7 B
advanced bone age, as seen in our patient.: R& @, Y- B& y1 \! Q3 |
The long-term effect of androgen exposure during0 I0 ~7 X2 R3 P
early childhood on pubertal development and final
: S/ c: [$ O. ^# L$ C8 ~1 Radult height are not fully known and always remain2 M1 j' f0 Y9 S5 l  H
a concern. Children treated with short-term testos-
7 J$ c( k) {  qterone injection or topical androgen may exhibit some3 Y( ?6 f; `5 t* M
acceleration of the skeletal maturation; however, after
4 ?" P1 H: C. ^8 [. @. J9 z4 ~cessation of treatment, the rate of bone maturation
6 N7 A; x& j) ~0 q: X9 C- Sdecelerates and gradually returns to normal.8,9* H8 a5 z" g: n( N6 }$ e8 G
There are conflicting reports and controversy
2 ~1 a6 i! s1 g5 V! l: m, jover the effect of early androgen exposure on adult
( M1 x# y" t  ?penile length.10,11 Some reports suggest subnormal
# L, d8 H% o: f2 B" {: W( wadult penile length, apparently because of downreg-3 E: _. }0 \& m' M/ i9 |
ulation of androgen receptor number.10,12 However," ?& E& Q" e* @+ O
Sutherland et al13 did not find a correlation between3 H3 p3 T; r* F8 N, w7 ~, W0 Y
childhood testosterone exposure and reduced adult
* ^. V1 q6 G! @6 ?( vpenile length in clinical studies.% z, j* A/ ?0 r' c  U1 u* D! J
Nonetheless, we do not believe our patient is
$ M; z$ K( |" g! tgoing to experience any of the untoward effects from: h9 ]$ Q" Y/ V$ Q' N8 D
testosterone exposure as mentioned earlier because4 M5 J! ^$ M3 k# z7 |+ `+ \
the exposure was not for a prolonged period of time.- C# ]9 Y1 y9 o* [+ [9 q  M
Although the bone age was advanced at the time of
) d# `" v; f6 c/ D) s2 D4 Sdiagnosis, the child had a normal growth velocity at* R0 A8 c% d  T$ r% P
the follow-up visit. It is hoped that his final adult
% G8 k0 i& m# Y/ T' h" xheight will not be affected.: D9 z1 [1 q# y/ V# ?0 c
Although rarely reported, the widespread avail-
6 v! M$ H: ]; Yability of androgen products in our society may, P, h4 ?: i: e) V6 f
indeed cause more virilization in male or female/ v( R" f+ A8 y2 w5 T/ }8 b  N" v  h7 C
children than one would realize. Exposure to andro-
0 p# r" |2 g1 Z: i+ ]gen products must be considered and specific ques-
( {. m$ p5 A/ q" g; d# Ytioning about the use of a testosterone product or
% h5 n8 K; b  c$ S' E( {6 Ygel should be asked of the family members during+ a1 b- N5 I7 V" n/ H4 q
the evaluation of any children who present with vir-
0 i: ~" ~( Y/ Iilization or peripheral precocious puberty. The diag-; J( h1 u" L, G0 K# {& l4 A
nosis can be established by just a few tests and by6 _+ h7 K* M2 `7 E* Y: r
appropriate history. The inability to obtain such a
0 a1 I8 F, ]6 X. t( R4 J3 _history, or failure to ask the specific questions, may0 v3 d2 Z8 c2 f/ T3 V- {
result in extensive, unnecessary, and expensive" c: y: _0 t" z+ Q$ u
investigation. The primary care physician should be
; d5 o% e" u' aaware of this fact, because most of these children
9 G  o5 S- [3 i- Z8 ]7 t- _$ imay initially present in their practice. The Physicians’! l' {: a) c. i% s) ?* \
Desk Reference and package insert should also put a
2 l. T" L. o  ^warning about the virilizing effect on a male or
3 k5 v- C# @% {* p2 t: G# {female child who might come in contact with some-
: I) C; U& O, \one using any of these products.
5 E8 _0 }4 B3 Q- I( YReferences8 `9 v+ v3 P, x
1. Styne DM. The testes: disorder of sexual differentiation
1 [$ M: c5 J: j$ [2 A5 Wand puberty in the male. In: Sperling MA, ed. Pediatric
, z$ F# }% O* v5 d2 l% O1 bEndocrinology. 2nd ed. Philadelphia, PA: WB Saunders;$ D8 D, W4 X/ ~
2002: 565-628.4 M6 e. N" |* C
2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious
2 u+ p, \' K0 Z+ c5 n( Wpuberty in children with tumours of the suprasellar pineal
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Sexual Precocity in a 16-Month-Old
) E* e; `  Y8 K1 }, y4 ?$ f; H* XBoy Induced by Indirect Topical* ~, p; @! o4 l1 |1 r$ j$ Y2 Z
Exposure to Testosterone7 O/ N# }. v# n* V4 c
Samar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,2# C% B, Y* x; Q, b/ I" @
and Kenneth R. Rettig, MD1
' {! Z; `! f1 x7 s8 zClinical Pediatrics
2 b, E. ]" _5 D9 O' w# c3 iVolume 46 Number 6
% p! x! G! Z% j" p! _  Y! gJuly 2007 540-543. A" U6 n9 t" _' |
© 2007 Sage Publications
8 `7 Y/ g$ l4 \2 D% X, x: ~3 Y10.1177/0009922806296651
- f9 R% X. N# z6 C, dhttp://clp.sagepub.com
0 h' j; d; X8 {: a4 Rhosted at
* `/ M. T2 k1 Q; D% Chttp://online.sagepub.com) I" p8 W' r- n
Precocious puberty in boys, central or peripheral,8 t1 x0 c! ?4 T6 @, d+ I
is a significant concern for physicians. Central
$ y: Z! P, R& o" T' Uprecocious puberty (CPP), which is mediated! [, G6 P* x2 L& g0 e* X( e& h
through the hypothalamic pituitary gonadal axis, has
; n, o( s( n6 f9 \& {a higher incidence of organic central nervous system
  t6 k0 f7 Z! Y. {2 U# rlesions in boys.1,2 Virilization in boys, as manifested6 T& H6 A' t7 W* x) e
by enlargement of the penis, development of pubic' J5 D" F1 T7 \8 Y
hair, and facial acne without enlargement of testi-1 M0 {7 X; b( J) l$ Z! A( k
cles, suggests peripheral or pseudopuberty.1-3 We, P7 @: G' I: W& E
report a 16-month-old boy who presented with the
& e; E  P; H8 z. N1 w8 p" e" Penlargement of the phallus and pubic hair develop-
* `; @" @6 K/ X' E' Cment without testicular enlargement, which was due; X7 Q1 _- {( y2 T
to the unintentional exposure to androgen gel used by& S3 O( A3 r' W( B2 z- M3 N$ k
the father. The family initially concealed this infor-8 G- \3 H- x  b: ]
mation, resulting in an extensive work-up for this
) z$ J, Y. u0 Q" }child. Given the widespread and easy availability of
0 F4 |0 T; \9 B7 j6 q; x& Etestosterone gel and cream, we believe this is proba-! \" i! z$ _* I/ P! X
bly more common than the rare case report in the0 s2 N6 \1 q' X! X+ W+ i
literature.4
  ]- l' Y3 a( q. hPatient Report
$ L" ]7 z! v* GA 16-month-old white child was referred to the0 J2 |- _3 j! Z. N" r+ A" L
endocrine clinic by his pediatrician with the concern4 ]1 H. M6 ]1 ?7 E  D  i! G  r
of early sexual development. His mother noticed+ c6 i. C& D2 y& O: j( u
light colored pubic hair development when he was3 I$ j" J3 z0 A" F! x
From the 1Division of Pediatric Endocrinology, 2University of
! J+ L, U5 l1 E! d' USouth Alabama Medical Center, Mobile, Alabama.' \: g9 f% F" a6 a" G
Address correspondence to: Samar K. Bhowmick, MD, FACE,' U; ], H9 r: f2 w! P( |# H
Professor of Pediatrics, University of South Alabama, College of
  r8 P% j; m2 w9 n2 @6 eMedicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;$ H5 d0 A" l" r/ J) d
e-mail: [email protected].; E1 W- Z! N5 L$ v" `6 g! Y: x
about 6 to 7 months old, which progressively became
1 q: D7 S: _: C$ Mdarker. She was also concerned about the enlarge-
7 \/ h; b% n  Ument of his penis and frequent erections. The child0 o+ ^5 N. w3 C, k: D. q
was the product of a full-term normal delivery, with8 y" a$ `  M2 H  P
a birth weight of 7 lb 14 oz, and birth length of
2 Y% {( x4 ~, q/ e0 p2 Y20 inches. He was breast-fed throughout the first year! o" q: |  v( {2 U9 q
of life and was still receiving breast milk along with
- ^* z) @2 a( Msolid food. He had no hospitalizations or surgery,; H# o' @6 P9 l# F# Z( a' {/ e
and his psychosocial and psychomotor development
  \% q6 N  C' Rwas age appropriate.
* A- l* T: w( {' E3 \The family history was remarkable for the father,
  p% D5 o9 f! M8 P3 owho was diagnosed with hypothyroidism at age 16,4 @# C1 ~* t( @8 `% ~
which was treated with thyroxine. The father’s
- ?2 i& O/ |# _  }# ]height was 6 feet, and he went through a somewhat: J. F5 l; d2 t
early puberty and had stopped growing by age 14.
1 x! _5 E5 V& k. |) s1 p- tThe father denied taking any other medication. The
6 X, q5 F1 ?* m0 M4 o: h, Cchild’s mother was in good health. Her menarche3 M' G3 v) m% j3 e7 f2 |! A
was at 11 years of age, and her height was at 5 feet: s/ |$ j7 J5 {: Q" E" S9 T
5 inches. There was no other family history of pre-
# v5 c5 L" ?- `7 P+ K; @cocious sexual development in the first-degree rela-
7 r0 g6 d7 [' J  \. Mtives. There were no siblings.
2 W0 M& L3 S+ ^- N( T0 |) SPhysical Examination6 H9 n+ }: V4 R  A: S
The physical examination revealed a very active,
" \$ u6 i5 r% P7 A: L7 b4 G% Q2 xplayful, and healthy boy. The vital signs documented$ h/ ^: |9 k9 c: E6 ^/ A% P
a blood pressure of 85/50 mm Hg, his length was
: L  I7 D9 j/ H; M  P9 O  Z% Y0 n, \! [90 cm (>97th percentile), and his weight was 14.4 kg- m, k" P+ M( A7 V3 F
(also >97th percentile). The observed yearly growth  V& q/ E3 J+ v# {5 l
velocity was 30 cm (12 inches). The examination of/ x9 x* k! e$ E* M, @) ]
the neck revealed no thyroid enlargement.! A# X. i% \/ L/ m( ]% g
The genitourinary examination was remarkable for& C) m: B' [6 M! _
enlargement of the penis, with a stretched length of
3 S' A6 i; `; F% A* ^$ S8 cm and a width of 2 cm. The glans penis was very well
) w. I8 M0 ~( s8 {' Fdeveloped. The pubic hair was Tanner II, mostly around9 L/ _; f$ [( b. I2 Z
540
( v  n- b# q, O4 H% ^  Fat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from3 d! @$ i' l4 E: ]% v6 c% m3 x
the base of the phallus and was dark and curled. The
8 J' T1 u& y3 Dtesticular volume was prepubertal at 2 mL each.! ?! C# I  N! O: P% Z
The skin was moist and smooth and somewhat! U8 X  W1 i* W0 K5 I3 y3 n) t8 U
oily. No axillary hair was noted. There were no$ h% i0 l9 ~' J9 h+ R
abnormal skin pigmentations or café-au-lait spots.5 a% v- h. n3 H
Neurologic evaluation showed deep tendon reflex 2+
& W: ?% }" I4 i* [! [bilateral and symmetrical. There was no suggestion
' x, {9 {, m' |1 j6 Nof papilledema.
' _8 p# j; o$ ~. V9 o: v4 gLaboratory Evaluation; Y3 {1 u, P3 _
The bone age was consistent with 28 months by
# }7 I4 D: L2 N/ b  ^using the standard of Greulich and Pyle at a chrono-$ r. `) r  m1 h! j* L
logic age of 16 months (advanced).5 Chromosomal8 D; `/ \/ ?& d# D4 A: _
karyotype was 46XY. The thyroid function test1 c4 a$ H" W5 l/ D, G
showed a free T4 of 1.69 ng/dL, and thyroid stimu-
% J- ?+ s( ]6 s/ a3 ~: c; F8 q5 P  clating hormone level was 1.3 µIU/mL (both normal).. n- I" A# C5 @  v/ R
The concentrations of serum electrolytes, blood
1 `$ G) m* Q1 l$ _# F( A6 Kurea nitrogen, creatinine, and calcium all were# r9 A6 S- T# p' f) {3 T+ V
within normal range for his age. The concentration1 c! ~9 `6 ~. s( p
of serum 17-hydroxyprogesterone was 16 ng/dL
% `2 b% y; X, T7 F6 c(normal, 3 to 90 ng/dL), androstenedione was 209 m+ X, W: v, l  l( Q
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-
* ?; t; _  t' O' Y5 ?- [/ Hterone was 38 ng/dL (normal, 50 to 760 ng/dL),+ l8 [$ ~6 b. E& _- j9 g
desoxycorticosterone was 4.3 ng/dL (normal, 7 to
1 _9 d" [3 M4 O0 R% I" M& q4 J49ng/dL), 11-desoxycortisol (specific compound S)5 {! ~# v* n! s6 _- t/ [8 S
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-
3 I; l( C: F# ~6 o$ ^  j" q2 Otisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total
2 V) `7 }! E/ g8 b* Otestosterone was 60 ng/dL (normal <3 to 10 ng/dL),
6 R+ C7 g- S# P4 ~8 k: R$ ^0 sand β-human chorionic gonadotropin was less than
. b0 c( ?; m' C# @: G; z5 mIU/mL (normal <5 mIU/mL). Serum follicular
# V+ l' c7 R4 I( n1 z# O, ustimulating hormone and leuteinizing hormone8 K  _2 ?/ e& }
concentrations were less than 0.05 mIU/mL( h. @, @3 \& t. c2 _) S
(prepubertal).
5 @4 w% l! l  H3 ?* MThe parents were notified about the laboratory
% x0 ^& U2 ?& M, M1 tresults and were informed that all of the tests were
, G% H7 {8 L7 d& N5 `1 l; lnormal except the testosterone level was high. The
; P4 [1 T$ E( ]/ n. }; ffollow-up visit was arranged within a few weeks to8 ^6 F3 m+ `! A* p
obtain testicular and abdominal sonograms; how-+ S, A7 N: N# ^$ ?5 w, o
ever, the family did not return for 4 months.
# a) s3 p3 d$ `4 Z" KPhysical examination at this time revealed that the5 E  D* M; d% x% V' T- o
child had grown 2.5 cm in 4 months and had gained/ V: u# t! R* D  R9 g. U
2 kg of weight. Physical examination remained
" R, n* [# P$ ~7 ~1 ~6 }, l+ H' ^unchanged. Surprisingly, the pubic hair almost com-
) O& x; J( }* H3 _pletely disappeared except for a few vellous hairs at& [% Y) i/ U% n
the base of the phallus. Testicular volume was still 2
+ |5 ?+ h( P# ]) umL, and the size of the penis remained unchanged.. ]* Q7 ~* \7 F3 \' E' [0 j6 S
The mother also said that the boy was no longer hav-
9 L% r# C2 p9 R: k  b: H% N5 R  hing frequent erections.# \7 O1 g  p/ v6 A; n* L
Both parents were again questioned about use of
$ u; X% _" w' M# Iany ointment/creams that they may have applied to
" Q8 ^( G  ?4 a& a: u& Ithe child’s skin. This time the father admitted the, i, E3 T: K: b; i# z6 B( T) O3 u
Topical Testosterone Exposure / Bhowmick et al 541) q1 Q% L; C4 O7 l( t; v; T7 C- b/ k
use of testosterone gel twice daily that he was apply-
& o. O: |" Y- ?; }' ]ing over his own shoulders, chest, and back area for- V: s6 V  a( \2 S; `) I
a year. The father also revealed he was embarrassed. ]! i/ {. o+ E! y1 m
to disclose that he was using a testosterone gel pre-
! R+ Q% U% K" h* Lscribed by his family physician for decreased libido3 J4 J5 Q1 [  ]: O# }
secondary to depression.
$ }, Y( v+ d! r& r2 @4 \) bThe child slept in the same bed with parents.
- W- z' R) L+ O# H- t# i5 d/ vThe father would hug the baby and hold him on his
8 ^3 G) k/ k( l% D" Q: ?7 v. zchest for a considerable period of time, causing sig-, k: Q7 A& A" r. O. t5 G
nificant bare skin contact between baby and father.
, l* _+ O( V9 x+ J9 UThe father also admitted that after the phone call,6 X) Q3 _( L3 M0 w/ X
when he learned the testosterone level in the baby/ E0 p" q5 m0 c  j. y
was high, he then read the product information
9 ^5 Y6 y: l2 y' r! a9 T0 k  W9 gpacket and concluded that it was most likely the rea-
& }0 Z. K/ _0 Bson for the child’s virilization. At that time, they
' G9 @4 k, y3 B* cdecided to put the baby in a separate bed, and the
  R* w' w+ w, ?5 ~7 Vfather was not hugging him with bare skin and had! i+ T) Y  V4 r) a. Y# c, }; @/ r
been using protective clothing. A repeat testosterone' ]- x8 O+ ?( Y- {5 D
test was ordered, but the family did not go to the- N* H2 u& f6 O: I
laboratory to obtain the test.: r5 Z6 P7 ^5 A1 d$ T7 @2 k
Discussion) j' X  ?& |0 p" b# g8 V- m7 g$ E
Precocious puberty in boys is defined as secondary
3 R' _) ~3 m, G. O2 N' O) nsexual development before 9 years of age.1,4
. j( c6 R" Q: }/ C0 \Precocious puberty is termed as central (true) when
5 C! j0 s* n' F5 Tit is caused by the premature activation of hypo-
) Z- Q: x5 k, u* J0 f, rthalamic pituitary gonadal axis. CPP is more com-
5 {7 |7 P6 w3 y' e6 N2 Pmon in girls than in boys.1,3 Most boys with CPP
, {6 B) V0 r; r  qmay have a central nervous system lesion that is
7 e: o8 C2 t) k( g+ z" vresponsible for the early activation of the hypothal-
. c! h) I  |6 d- L& \) W% E+ aamic pituitary gonadal axis.1-3 Thus, greater empha-
$ p( W5 _# C8 C8 jsis has been given to neuroradiologic imaging in3 Q+ u$ ]$ o" V
boys with precocious puberty. In addition to viril-
% V7 [, L# ?$ C4 a9 |& iization, the clinical hallmark of CPP is the symmet-
0 l4 {+ p/ K, q4 [" w9 ?& zrical testicular growth secondary to stimulation by4 ?5 o+ s0 i, n0 c2 [) M: F( D
gonadotropins.1,3! \5 b/ L' y" _% {* `
Gonadotropin-independent peripheral preco-7 r5 u, v: H. J3 o
cious puberty in boys also results from inappropriate
* V) W. {8 l& B+ F' q$ ~6 l/ R3 Tandrogenic stimulation from either endogenous or; Q8 {* U  I7 w+ _
exogenous sources, nonpituitary gonadotropin stim-# u- d; U, G* S6 O6 R  m
ulation, and rare activating mutations.3 Virilizing
. c9 \: p; m& K" v# Acongenital adrenal hyperplasia producing excessive9 }7 R( n' D8 c- D! D) x
adrenal androgens is a common cause of precocious
- Q9 V' q+ j2 V+ o7 m2 @# @puberty in boys.3,4% \1 ~) m3 H5 ?
The most common form of congenital adrenal/ k! K: r$ Z2 s, s$ H4 x  U
hyperplasia is the 21-hydroxylase enzyme deficiency.8 _: g0 y' \2 K5 y' N
The 11-β hydroxylase deficiency may also result in4 B1 C$ v( w, `. j+ _
excessive adrenal androgen production, and rarely,8 ~( I2 s5 F- Q: h/ j
an adrenal tumor may also cause adrenal androgen6 y! h4 w# h0 C2 `% V, G6 t1 N
excess.1,3
1 }/ o! O% K! zat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
, o" f, e, E! c( B& X542 Clinical Pediatrics / Vol. 46, No. 6, July 20078 }1 H0 m3 P0 \/ C+ k8 `
A unique entity of male-limited gonadotropin-
: P0 [/ x7 k; Y2 u% iindependent precocious puberty, which is also known
) V6 y+ m/ O) x8 Bas testotoxicosis, may cause precocious puberty at a
" \$ K3 m5 J% T1 [: xvery young age. The physical findings in these boys/ ^1 N) W( d' ~
with this disorder are full pubertal development,8 k. t7 ^; R5 r9 g0 k+ Z. }
including bilateral testicular growth, similar to boys$ P. _8 O) y7 V8 ^
with CPP. The gonadotropin levels in this disorder
! i: ~+ M# u' F- P* u* U# Gare suppressed to prepubertal levels and do not show
# S: {6 q3 l  y- B& H! L% I$ ]8 Lpubertal response of gonadotropin after gonadotropin-
$ ^1 e+ r) z' b  \releasing hormone stimulation. This is a sex-linked
+ ]- v5 Y# M" j( J# [5 L: Yautosomal dominant disorder that affects only
$ ^9 ]) P, r7 j8 ?males; therefore, other male members of the family
( ?) N3 b) `4 J! `. l3 nmay have similar precocious puberty.3
& e% _7 l! F1 f& b, HIn our patient, physical examination was incon-$ z% V% S+ a8 v$ Q$ w8 y2 i
sistent with true precocious puberty since his testi-
3 d$ e7 B) ]' }& ocles were prepubertal in size. However, testotoxicosis
4 j# s5 q. r+ a& q: {1 swas in the differential diagnosis because his father2 P3 H7 r" e3 i0 s! m- T
started puberty somewhat early, and occasionally,
2 y4 g- D* F; q9 }4 l3 b5 @testicular enlargement is not that evident in the) _+ b9 @6 X* s
beginning of this process.1 In the absence of a neg-1 `  N- Y( H, E5 H% b, ~
ative initial history of androgen exposure, our
8 Y0 H5 C& q% ^" l" g1 v1 Cbiggest concern was virilizing adrenal hyperplasia,
% ~) p( P" }. ?9 ?either 21-hydroxylase deficiency or 11-β hydroxylase
2 U& |7 |5 e* S  O3 k, bdeficiency. Those diagnoses were excluded by find-5 ?7 B8 T8 b/ u- \8 D
ing the normal level of adrenal steroids.
2 I& m: s$ V0 qThe diagnosis of exogenous androgens was strongly; s* _) E; s% K  Q  R
suspected in a follow-up visit after 4 months because
. \  A4 O' w' c$ G9 Gthe physical examination revealed the complete disap-7 V/ }3 L' U7 c1 p+ j0 s) D
pearance of pubic hair, normal growth velocity, and# \: f! X" d2 n, N$ W/ \& O; o1 e
decreased erections. The father admitted using a testos-( \& A; j+ b3 [  H) Z( b
terone gel, which he concealed at first visit. He was
6 r+ i* ^1 f9 ^5 `/ F/ N& T7 Lusing it rather frequently, twice a day. The Physicians’
3 j& w( J9 W- f% tDesk Reference, or package insert of this product, gel or6 g9 ]2 N  X9 M6 Y8 j5 x* M
cream, cautions about dermal testosterone transfer to3 g7 [; }3 i3 U1 v1 T
unprotected females through direct skin exposure.
% I7 K; O8 o. y2 R5 ^Serum testosterone level was found to be 2 times the
/ V7 `* Y2 Z! S* |% X- k' ?baseline value in those females who were exposed to
& c/ N" b5 Y& y0 w, I! g& k, heven 15 minutes of direct skin contact with their male
3 u3 S( o! n1 h- C: f+ p+ P- N7 Cpartners.6 However, when a shirt covered the applica-% N+ B* s- o: z8 r
tion site, this testosterone transfer was prevented.+ `) U* _7 B- C% Y, ]( {% B9 q$ V
Our patient’s testosterone level was 60 ng/mL,
' o: P1 b- Y% O2 u+ ]: qwhich was clearly high. Some studies suggest that
+ K$ \& ]  k& }3 O/ Mdermal conversion of testosterone to dihydrotestos-
+ l& A4 @; t: o- E2 |terone, which is a more potent metabolite, is more/ n9 X! m6 a" o
active in young children exposed to testosterone' b4 R8 X4 C  X; x+ W
exogenously7; however, we did not measure a dihy-8 B1 r7 ?! W0 F8 k" z$ b# ]. g
drotestosterone level in our patient. In addition to- m; w% ~7 V' i2 j
virilization, exposure to exogenous testosterone in
+ u. a7 L# G+ T3 P/ Vchildren results in an increase in growth velocity and
$ f1 ]5 t" E- b* p. Sadvanced bone age, as seen in our patient.3 y/ G8 I) ^: |& J6 H
The long-term effect of androgen exposure during0 B( q6 v7 n/ {4 q0 e. R1 z
early childhood on pubertal development and final2 n& \1 O" k, f0 E) }
adult height are not fully known and always remain
- {3 }( W2 x% Y: Q: }: q- T2 G0 R2 Wa concern. Children treated with short-term testos-
1 [) u0 g' S) o7 h5 @terone injection or topical androgen may exhibit some$ K2 C- {0 g  u$ n0 x
acceleration of the skeletal maturation; however, after
( x% z* m' Z( f5 X/ _cessation of treatment, the rate of bone maturation( ~- n. |7 H6 t# g0 f
decelerates and gradually returns to normal.8,9
( q$ c1 k# t- a* OThere are conflicting reports and controversy+ {* E! p0 e  a7 b
over the effect of early androgen exposure on adult
5 G0 f; v; ?  T1 ^$ {& @- qpenile length.10,11 Some reports suggest subnormal9 l7 ^8 k- W! M: p
adult penile length, apparently because of downreg-
6 C: y' R# [" e+ ]ulation of androgen receptor number.10,12 However,. R$ s& z! P$ z) x; z3 \. X
Sutherland et al13 did not find a correlation between
9 w0 Q5 n" B6 d: d, q# E" pchildhood testosterone exposure and reduced adult
4 F1 Q. p7 x- u& qpenile length in clinical studies.& b2 y& N' f( a( ]# `
Nonetheless, we do not believe our patient is) p, a  x, `/ C5 ~
going to experience any of the untoward effects from
/ v8 s5 l. `4 }testosterone exposure as mentioned earlier because' x) B' Y4 z5 t3 ^; H( l$ _9 ~
the exposure was not for a prolonged period of time.
2 c+ z" x, O, z% {- X; t. `Although the bone age was advanced at the time of+ I% ?- }8 _- g) \4 C+ e
diagnosis, the child had a normal growth velocity at
/ Z) R7 E9 [5 F4 u3 ^2 Uthe follow-up visit. It is hoped that his final adult
" f; Z$ ]/ s( R, W6 ]height will not be affected.3 g! A' ~2 ^6 k# b8 d& `" x
Although rarely reported, the widespread avail-. T: F- U, L2 {. M
ability of androgen products in our society may, G8 k8 y+ A: L% c: [" P
indeed cause more virilization in male or female
( u' N! Z1 x' S% L  Q, Rchildren than one would realize. Exposure to andro-
1 y! s& _  A' A9 I+ x- O, V& x8 Sgen products must be considered and specific ques-
6 q6 d! A% p$ d# ~: Y5 Stioning about the use of a testosterone product or
0 m/ _5 y7 ]7 jgel should be asked of the family members during
4 K+ y, T) I/ I" w3 Zthe evaluation of any children who present with vir-
; o5 Y( J  b+ eilization or peripheral precocious puberty. The diag-+ p4 w1 z9 ]. j
nosis can be established by just a few tests and by
; J2 A* y( v' X/ d) Iappropriate history. The inability to obtain such a& o! P9 r" Z7 O3 \3 T! s5 O
history, or failure to ask the specific questions, may, E( {/ V* q( K6 m3 s
result in extensive, unnecessary, and expensive) g4 k0 o# j+ ^, f3 i& _
investigation. The primary care physician should be7 w8 m3 `. Y5 p: z+ q' W- i6 X9 I) J
aware of this fact, because most of these children
. D; x. z- M/ D9 b# Gmay initially present in their practice. The Physicians’+ s1 k5 L( W! k+ z; W' U  h
Desk Reference and package insert should also put a
. k5 b( A- T$ W. J* b3 xwarning about the virilizing effect on a male or
0 U: L6 C4 C- w$ ufemale child who might come in contact with some-  m2 L( V0 l. Q* q2 u, B6 K( e
one using any of these products., v9 V# j, F1 M( Z" M
References# Z7 _% O" q8 A0 O+ P. N% t
1. Styne DM. The testes: disorder of sexual differentiation
4 R7 x! L+ P$ [: c7 N) x; z- P8 S! Cand puberty in the male. In: Sperling MA, ed. Pediatric% L; n& n+ G) w' j
Endocrinology. 2nd ed. Philadelphia, PA: WB Saunders;* M) E) r, |% j9 }8 w  [  P% C2 Y
2002: 565-628.- l1 J) w" z3 z5 X
2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious0 r3 |. Y; j+ |) `
puberty in children with tumours of the suprasellar pineal
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女厕偷拍辅导班主任尿尿老师的逼很嫩还有一点
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4个什么样的?
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' s3 T$ o( E; ?( U6 e6 L) s  W
精妙絕倫的精品,感謝啊!期待你更多更好的創作哦!
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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!
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