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Sexual Precocity in a 16-Month-Old
1 L( _# ~# d% \2 l; r* _5 CBoy Induced by Indirect Topical
4 D5 k" X5 D. z9 U0 TExposure to Testosterone
9 a$ a- b) @: @+ s/ f/ g$ j. p5 SSamar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,2
7 H- w0 q: a' P& ]and Kenneth R. Rettig, MD1! q% q8 s0 m# y+ I7 v2 h9 ]9 T9 t
Clinical Pediatrics9 a* @) g+ w: \7 ^
Volume 46 Number 6
* @; t2 w% {3 ]July 2007 540-543
- s& _2 z+ Z& O9 r& V% c© 2007 Sage Publications( d. Z3 @, u; F8 K! C7 V. F" G
10.1177/0009922806296651
4 @& ~4 T( V& E3 X$ j0 ihttp://clp.sagepub.com/ D9 ?1 [. c5 v  W3 s# V4 u
hosted at* U1 l$ `* r* [! n. Y
http://online.sagepub.com
! _+ c; y& l* K  i& V4 l% {Precocious puberty in boys, central or peripheral,
# U& N* @& ?/ o7 @. ^is a significant concern for physicians. Central+ V7 j% ]- r+ Y4 [: r
precocious puberty (CPP), which is mediated* G0 K3 |/ k; x6 {  C' ?1 W9 A
through the hypothalamic pituitary gonadal axis, has" b! P7 Z% l7 K/ Y" C1 s$ ?& c
a higher incidence of organic central nervous system! A+ j$ J$ n$ Y9 u
lesions in boys.1,2 Virilization in boys, as manifested
* J, A! e7 u  T0 F' _  P! V5 ]+ H6 Yby enlargement of the penis, development of pubic
+ Z* `+ I: J2 E9 ^" Hhair, and facial acne without enlargement of testi-" Z  P+ x) r6 _
cles, suggests peripheral or pseudopuberty.1-3 We
4 F% C$ B; E$ ~5 Z$ J" j% ereport a 16-month-old boy who presented with the
% D; t; }  E# oenlargement of the phallus and pubic hair develop-
: }+ e; T2 Y- [1 W: t% ament without testicular enlargement, which was due* n" p& ~; o+ M& T2 c' o0 T5 x$ Q, g
to the unintentional exposure to androgen gel used by
# x! U) ]2 C# Q& F2 uthe father. The family initially concealed this infor-
* q' \( }' j, w' d5 ~5 H+ fmation, resulting in an extensive work-up for this
8 ]  L  V. }" [3 |5 I+ `child. Given the widespread and easy availability of
% I# B7 T% o1 Y. Y$ @5 l. ctestosterone gel and cream, we believe this is proba-# w; \! }1 f: D# C9 T
bly more common than the rare case report in the. K; y7 C3 c# r# {! a
literature.4
4 _/ n8 p  M% M- L4 F; B1 G7 uPatient Report
/ Q# b3 R, h4 _$ J+ O' D: [A 16-month-old white child was referred to the
6 h7 F; c8 B  p4 @- C+ I0 Fendocrine clinic by his pediatrician with the concern0 [* \$ p7 H, C& M( A
of early sexual development. His mother noticed
" R! I* X+ J8 U" @light colored pubic hair development when he was8 Q8 l! Y  b3 \7 k
From the 1Division of Pediatric Endocrinology, 2University of1 q/ R0 s! m$ h& `- J& o% O0 @
South Alabama Medical Center, Mobile, Alabama.
2 h, p# m- q/ O2 Y# z" ^6 t7 OAddress correspondence to: Samar K. Bhowmick, MD, FACE,9 f! b" f) o2 X: z
Professor of Pediatrics, University of South Alabama, College of! n/ w8 c& g( c
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;
$ W5 }7 ?% d7 Z) h) ]. ke-mail: [email protected].
! F, k4 s3 X5 [! f, J" ]about 6 to 7 months old, which progressively became. E1 N* }/ o! c  V8 K* p9 f
darker. She was also concerned about the enlarge-% g5 i3 E8 O$ X2 [% l! q- h, r
ment of his penis and frequent erections. The child
( ~; L. X, \2 F" qwas the product of a full-term normal delivery, with
  h+ H; w- Z: U' o, v2 k$ Oa birth weight of 7 lb 14 oz, and birth length of0 q! m" M- K+ p- A- s0 g& w
20 inches. He was breast-fed throughout the first year
2 g& u2 Y  @* e* Z9 Oof life and was still receiving breast milk along with' {  P% j- `5 M4 Y' F
solid food. He had no hospitalizations or surgery,
) A+ q+ U6 S- f9 [3 @; O8 P. zand his psychosocial and psychomotor development. u7 j: |; |: g' H; Y
was age appropriate.# c  d% S' j7 I$ r9 {( h! ^& h
The family history was remarkable for the father,* o1 P2 G, u5 f' r7 U$ k
who was diagnosed with hypothyroidism at age 16,. x4 t( D# w6 V; N) T
which was treated with thyroxine. The father’s
0 _# X8 s& H8 w3 [# x- ~height was 6 feet, and he went through a somewhat1 `* }7 o, S6 z* p- i& X% H" h) W
early puberty and had stopped growing by age 14.4 H" Y( p% T8 q- @
The father denied taking any other medication. The
# v3 M6 G: l& k% c" Schild’s mother was in good health. Her menarche
3 |3 ?, r8 ?/ `  _; _was at 11 years of age, and her height was at 5 feet0 U. g4 z& x; p4 T
5 inches. There was no other family history of pre-# h' \. f* W* z8 Q4 m; K0 G
cocious sexual development in the first-degree rela-( G1 p: t/ ^+ }7 f" E2 N$ r
tives. There were no siblings.* D9 @( |6 ]; j8 S+ s
Physical Examination
) O, ]2 z+ N0 y, V8 FThe physical examination revealed a very active,2 V& L2 W" e( |, |, g
playful, and healthy boy. The vital signs documented+ \+ u7 N* b5 i- k9 ~
a blood pressure of 85/50 mm Hg, his length was  L. r1 K! e1 G$ K/ ~
90 cm (>97th percentile), and his weight was 14.4 kg/ e" ]  h6 `1 g, d
(also >97th percentile). The observed yearly growth
5 H' l" J5 v. Dvelocity was 30 cm (12 inches). The examination of
# a1 c: O1 M6 athe neck revealed no thyroid enlargement.
" ~1 A" @8 q& F, ZThe genitourinary examination was remarkable for# C! v7 a( n% ?
enlargement of the penis, with a stretched length of
$ ~! E) M1 S# ?1 m' U$ i  k8 cm and a width of 2 cm. The glans penis was very well
% {* m- E5 n5 R6 i" t& |developed. The pubic hair was Tanner II, mostly around- v' W# H$ ]/ S7 R1 Q9 A  V- P
540
, U" Q- f* R, @at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from2 Y: W+ v4 k: q! C7 o( g
the base of the phallus and was dark and curled. The/ q" }/ S$ |& \6 }$ _( a. l
testicular volume was prepubertal at 2 mL each.- U! v; {' ?: _; L/ i, @3 K% ]: O" e% T
The skin was moist and smooth and somewhat
% Z% r4 W4 o# m# ~5 B9 joily. No axillary hair was noted. There were no3 J4 L. `# n. S1 ^
abnormal skin pigmentations or café-au-lait spots.
* f+ d8 a+ R' WNeurologic evaluation showed deep tendon reflex 2+1 L5 G( J- K" G6 t
bilateral and symmetrical. There was no suggestion! J) q  N( d- m0 {
of papilledema.
# b$ ?. ^% g1 ?Laboratory Evaluation# r8 R: G1 C* {9 c( r2 f0 C7 [
The bone age was consistent with 28 months by
. o, }: C# m. W( _8 E! q& dusing the standard of Greulich and Pyle at a chrono-
* M8 i" h0 |: k- qlogic age of 16 months (advanced).5 Chromosomal' Z  \8 L& M2 U2 m
karyotype was 46XY. The thyroid function test- u9 ?- [# |: w7 r5 X/ u
showed a free T4 of 1.69 ng/dL, and thyroid stimu-
2 |' S& A3 ~: klating hormone level was 1.3 µIU/mL (both normal).1 K4 f1 H, k% ]* p
The concentrations of serum electrolytes, blood& ]9 W" Y* `! v+ F: Q( U
urea nitrogen, creatinine, and calcium all were1 U0 U' ]: I5 j' F+ k6 p
within normal range for his age. The concentration9 w1 j' Y2 Q, ]) d7 T6 `" G
of serum 17-hydroxyprogesterone was 16 ng/dL% S2 ^7 @* P! Q# e6 _+ T
(normal, 3 to 90 ng/dL), androstenedione was 207 n' F' w+ A9 q
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-
: P) h& @- K  h5 ]& jterone was 38 ng/dL (normal, 50 to 760 ng/dL),6 c! u2 }0 v+ [5 h' v+ T0 @- p
desoxycorticosterone was 4.3 ng/dL (normal, 7 to3 \& }+ r2 w) s7 k7 u; S
49ng/dL), 11-desoxycortisol (specific compound S)3 K9 |0 \/ x% t: J
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-
6 v& d4 Q$ Z# W6 `tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total- ]8 e7 t' d, \3 N
testosterone was 60 ng/dL (normal <3 to 10 ng/dL),9 [, ~- q7 T0 U" k3 X1 V
and β-human chorionic gonadotropin was less than* h1 e& Y; v- T- h1 h$ U
5 mIU/mL (normal <5 mIU/mL). Serum follicular4 ~  J2 ^2 ~5 V: Y
stimulating hormone and leuteinizing hormone
$ \+ X7 L* V, v# k" G8 B& N2 Jconcentrations were less than 0.05 mIU/mL
6 v5 t4 o; z8 H; v" m(prepubertal).! C3 y. X  R& }6 N, v* k
The parents were notified about the laboratory
$ s* X" U! K% |/ D) Vresults and were informed that all of the tests were" x. n: F1 h# t: n# Y' Z
normal except the testosterone level was high. The& Q2 d. Y1 n1 A& @5 m0 W( u
follow-up visit was arranged within a few weeks to5 `0 ]$ o2 F$ w( B3 L& R8 v) S6 N
obtain testicular and abdominal sonograms; how-
& b* M5 v3 Z4 n+ x5 n  eever, the family did not return for 4 months.
$ k) n( B; ^, o% e' ~, C' zPhysical examination at this time revealed that the
& W; ]% i9 Q6 k5 k7 M( e( [9 qchild had grown 2.5 cm in 4 months and had gained" M  u: l; E8 j+ S+ A8 p8 j5 g
2 kg of weight. Physical examination remained8 i$ H& g4 o8 [& U. u; r- k6 R. R
unchanged. Surprisingly, the pubic hair almost com-( P1 ?( @# _! [# @1 v' x
pletely disappeared except for a few vellous hairs at7 F3 [) P2 c+ N  a
the base of the phallus. Testicular volume was still 2
& M! P/ s+ V* ]# V( g& GmL, and the size of the penis remained unchanged.
% b. j8 L* m: U( q1 v% NThe mother also said that the boy was no longer hav-
7 [" s! C+ F2 v- W5 W+ hing frequent erections.7 O5 Q6 Z9 d- b# _+ @- \
Both parents were again questioned about use of
0 }3 t% O- h* d3 Kany ointment/creams that they may have applied to
' v' S, v8 G# ?9 Lthe child’s skin. This time the father admitted the
) \& v, l6 [$ S, _3 tTopical Testosterone Exposure / Bhowmick et al 5419 N- f2 S8 G7 z3 }' d8 G, t* D
use of testosterone gel twice daily that he was apply-/ q+ m; J! F5 |6 m2 U2 Y
ing over his own shoulders, chest, and back area for
% l# C* g, C  L2 F: W; za year. The father also revealed he was embarrassed
/ e! m7 K9 z* F, [to disclose that he was using a testosterone gel pre-
, x7 [; K5 @* Y3 v2 ^# @% Kscribed by his family physician for decreased libido) b4 [, b) t* O$ J4 e/ S+ `  B6 {
secondary to depression.2 E1 D% N0 M0 O* j
The child slept in the same bed with parents./ O8 o" H6 G& C5 z) w
The father would hug the baby and hold him on his$ |4 S; x. ^* P9 {
chest for a considerable period of time, causing sig-8 _) O1 C0 o5 z7 m8 |) g( c
nificant bare skin contact between baby and father.
2 @, W8 w' C% sThe father also admitted that after the phone call,& ^' K+ u% i* }
when he learned the testosterone level in the baby
9 K0 c2 A% r) u2 P4 Jwas high, he then read the product information
7 K' k  g* m6 H( k- f' wpacket and concluded that it was most likely the rea-( e" a$ ~! L1 |2 F9 e$ A. j0 S; p
son for the child’s virilization. At that time, they
/ D$ `4 c; m. h0 n+ Vdecided to put the baby in a separate bed, and the+ y. v. d9 T; a/ a
father was not hugging him with bare skin and had" r1 \% k" r/ M/ v& X5 K
been using protective clothing. A repeat testosterone0 R" S0 _6 U; P0 C: F! i
test was ordered, but the family did not go to the8 @/ F/ L' _$ [1 P( G- N
laboratory to obtain the test.
3 @5 |6 a+ u  e. ?3 UDiscussion6 F8 S  X+ x; z8 P+ y
Precocious puberty in boys is defined as secondary
& [, b: T# A0 p) }' z( Esexual development before 9 years of age.1,4
$ f, e# g% c- F/ u9 B1 \1 wPrecocious puberty is termed as central (true) when3 k  N1 K* ^, c: b
it is caused by the premature activation of hypo-
; I! k. g* N0 @% u# G- Athalamic pituitary gonadal axis. CPP is more com-+ I) ?, Z7 h; O5 u+ a
mon in girls than in boys.1,3 Most boys with CPP
% s& u# b0 B2 a# [3 r1 p( |may have a central nervous system lesion that is
  n3 t9 j" {! q7 @responsible for the early activation of the hypothal-
$ ^! T2 e5 U" gamic pituitary gonadal axis.1-3 Thus, greater empha-
! @/ b# ]" W/ I7 jsis has been given to neuroradiologic imaging in% }* g9 m3 ?/ t6 f2 U) {/ c5 ^
boys with precocious puberty. In addition to viril-  B/ ^6 @8 x: d  E1 a0 J
ization, the clinical hallmark of CPP is the symmet-. A7 F$ Z& ?. l0 b: E% \8 G
rical testicular growth secondary to stimulation by
' D/ t% v6 L9 K' [. b- G. ygonadotropins.1,34 U: q$ S( S, c
Gonadotropin-independent peripheral preco-! y% h, Z/ a7 S! u1 e3 p
cious puberty in boys also results from inappropriate
2 H" I! L' R1 T& U2 |" vandrogenic stimulation from either endogenous or
/ f& C/ U2 m5 r+ aexogenous sources, nonpituitary gonadotropin stim-
. Z/ M8 g2 R1 H" Z* ?ulation, and rare activating mutations.3 Virilizing( y; M+ H* X( z0 o; y
congenital adrenal hyperplasia producing excessive
, k  v1 `6 \; n+ Oadrenal androgens is a common cause of precocious! b) F2 V. M3 e- v  }
puberty in boys.3,4
' N6 @  O! M/ pThe most common form of congenital adrenal
7 O" M7 @* P9 d* }  whyperplasia is the 21-hydroxylase enzyme deficiency.4 l' J! v, ?# D& @, a3 K& n
The 11-β hydroxylase deficiency may also result in
( ?( M- U5 t' G$ ^excessive adrenal androgen production, and rarely,# O% {- l% W+ D$ h( f- o
an adrenal tumor may also cause adrenal androgen
  v  _- o# X2 s8 j, \excess.1,3& V  Q; {& t- G. d  C3 F4 H
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from5 O/ }# {- Z3 {3 ~: k, x' M
542 Clinical Pediatrics / Vol. 46, No. 6, July 20071 n: f4 b4 U' f6 i  H
A unique entity of male-limited gonadotropin-
7 f3 X0 O" Z, x# N- }# qindependent precocious puberty, which is also known
& ?% S$ g+ S% V6 gas testotoxicosis, may cause precocious puberty at a
% M! }; j$ E8 \! I  Ivery young age. The physical findings in these boys
4 d, w! C# U$ i: p& Fwith this disorder are full pubertal development,
% m! _9 r3 z9 W8 kincluding bilateral testicular growth, similar to boys
0 m  {  ^/ P  e9 P" g2 Jwith CPP. The gonadotropin levels in this disorder  P+ i- L5 j5 V+ X8 G
are suppressed to prepubertal levels and do not show
) x& x& E8 V7 B$ {0 e5 Y3 Ppubertal response of gonadotropin after gonadotropin-
- n' N7 f! f% M* a( preleasing hormone stimulation. This is a sex-linked) u3 c4 x. p8 C8 o- ^
autosomal dominant disorder that affects only4 ~$ B# I7 q* k( k/ o% }7 r* o
males; therefore, other male members of the family
5 T$ @$ y6 A4 c$ y9 e- H- W6 X6 wmay have similar precocious puberty.3
! h( z( j0 [$ I+ C9 B" M) _In our patient, physical examination was incon-" ]+ ]5 s+ H5 p: g0 D
sistent with true precocious puberty since his testi-
0 w. w# k* O3 B# v* ?7 Z" p8 n8 ^cles were prepubertal in size. However, testotoxicosis  K* f! y; x9 M/ Q
was in the differential diagnosis because his father) C. [& T9 b  e- G0 ^
started puberty somewhat early, and occasionally,
6 i9 v  w+ V  k- C/ M8 @# z! ptesticular enlargement is not that evident in the
% y/ V) g7 `4 u$ \. Dbeginning of this process.1 In the absence of a neg-6 D" w0 z4 d7 n$ m7 B' Y0 m
ative initial history of androgen exposure, our
' h! |4 K* e) nbiggest concern was virilizing adrenal hyperplasia,0 L  E, a( {+ M3 G5 A. k, [
either 21-hydroxylase deficiency or 11-β hydroxylase- R$ O' a$ [& c. P9 p  T$ S7 w, h
deficiency. Those diagnoses were excluded by find-. g# X( B' \3 A6 Y6 E6 ]
ing the normal level of adrenal steroids.
/ a, m3 |$ c( x. K. PThe diagnosis of exogenous androgens was strongly
1 x+ F! l9 ]% B  ^* }" R$ Isuspected in a follow-up visit after 4 months because
; z3 f! S! G8 F# Qthe physical examination revealed the complete disap-* u) n( x* C+ b' V1 t
pearance of pubic hair, normal growth velocity, and
/ v5 p$ q9 F( P8 r  q5 ]8 pdecreased erections. The father admitted using a testos-
! a, t7 o. [9 M9 Gterone gel, which he concealed at first visit. He was( P: T& {" F1 d0 `
using it rather frequently, twice a day. The Physicians’
( i! p" o9 ~+ S0 PDesk Reference, or package insert of this product, gel or
( y: s  `' s( Ycream, cautions about dermal testosterone transfer to
" l( D+ C; f6 d. d; Hunprotected females through direct skin exposure.
# `3 F3 V9 G8 ^; K/ \. P; xSerum testosterone level was found to be 2 times the4 G- {0 W  Q& i1 `9 X: D2 u7 `2 U
baseline value in those females who were exposed to; d; ]) [" h6 K& m; |6 d
even 15 minutes of direct skin contact with their male+ Q) z8 n: V- ?+ f
partners.6 However, when a shirt covered the applica-
3 s! G  Y6 P1 N0 ~- I8 H' @tion site, this testosterone transfer was prevented.
* G! E6 _* S2 [; y( U. v& bOur patient’s testosterone level was 60 ng/mL,
2 b7 g- A& l2 W% n! P3 |( M! ?which was clearly high. Some studies suggest that: Y  P6 ]/ @3 e1 v
dermal conversion of testosterone to dihydrotestos-: N# E' f# m9 c+ w$ t
terone, which is a more potent metabolite, is more
1 f$ {& G% b3 U' S4 ]8 U1 q6 j& Iactive in young children exposed to testosterone
6 j2 F5 H5 U" U5 sexogenously7; however, we did not measure a dihy-" I9 ^# L# `. w2 d1 {/ ^+ z8 s, A
drotestosterone level in our patient. In addition to
/ `% o; t  {% G" p, {2 dvirilization, exposure to exogenous testosterone in
$ g; B4 R" P. ]+ h9 e, [* Vchildren results in an increase in growth velocity and9 o9 F8 G+ c. b5 ?* b6 ~3 m: a( ~
advanced bone age, as seen in our patient.  V5 J3 z% ^/ x6 P4 I- w# z
The long-term effect of androgen exposure during
2 j; U+ t6 P. t; E# N7 Gearly childhood on pubertal development and final( E0 L6 |. \5 E# h( ~: h- f
adult height are not fully known and always remain
6 C! {% k2 \+ D. F/ Ra concern. Children treated with short-term testos-
0 e& q- P( z! o8 \) [+ s3 X5 mterone injection or topical androgen may exhibit some* k$ x6 }! P3 X# [. A
acceleration of the skeletal maturation; however, after) m7 a$ |" w* J
cessation of treatment, the rate of bone maturation4 y5 n# x' Z) q
decelerates and gradually returns to normal.8,9
7 k* `4 v/ o: o3 T5 RThere are conflicting reports and controversy' K% ^* }4 c* Q" e9 n
over the effect of early androgen exposure on adult' ^6 }8 H% ~- l$ X
penile length.10,11 Some reports suggest subnormal, a7 n" W( m- G) {8 T* A
adult penile length, apparently because of downreg-
5 B8 V2 A! G, z; T. X# ]" U# d+ xulation of androgen receptor number.10,12 However,
. z) r/ o3 ?4 `. [8 A0 H& uSutherland et al13 did not find a correlation between
5 }) @- K1 \- _childhood testosterone exposure and reduced adult
" N$ I& w4 l& u) n- lpenile length in clinical studies.
  \* o; q" T- d- jNonetheless, we do not believe our patient is
/ T3 I, l# l/ b6 _/ M& Y  Xgoing to experience any of the untoward effects from( _1 B7 X$ |- S# c
testosterone exposure as mentioned earlier because
$ b7 O" ^  ~& @1 q; Tthe exposure was not for a prolonged period of time.! P6 S5 {' d0 Z& M% Y
Although the bone age was advanced at the time of0 [! R) C# J0 _! ?* R+ h6 @
diagnosis, the child had a normal growth velocity at
. O/ |# z& d/ n0 }/ ^8 rthe follow-up visit. It is hoped that his final adult
8 Z9 {. x6 w. S/ j; M! F3 eheight will not be affected.
- T; b7 ^9 r; ]2 i$ gAlthough rarely reported, the widespread avail-
: g1 W, n. S- }# ?, l* Y& p) M' aability of androgen products in our society may. y3 U! z% S# y6 B( b) X- c
indeed cause more virilization in male or female
  ^9 {: s) \$ vchildren than one would realize. Exposure to andro-3 N, R9 g) n: h. V
gen products must be considered and specific ques-9 E* s' G- C& e" ?! S, e
tioning about the use of a testosterone product or
1 T% D. g! [8 x7 k/ Ugel should be asked of the family members during9 _0 T  H2 o) ~! y  B6 f  Y' z
the evaluation of any children who present with vir-8 D9 J% F% t5 {# Z! S
ilization or peripheral precocious puberty. The diag-$ ^# p1 f* ^: A- k- B, y( g
nosis can be established by just a few tests and by: r( Q3 Y( f, P
appropriate history. The inability to obtain such a' {8 h6 ?/ F3 A( p
history, or failure to ask the specific questions, may1 A# u% p7 Y- l
result in extensive, unnecessary, and expensive
; ]0 z% W: P1 H  T* ainvestigation. The primary care physician should be# E2 M3 c- U* U) g
aware of this fact, because most of these children; `, N8 ^6 s2 g& W7 z8 V
may initially present in their practice. The Physicians’
  j8 s) t2 R7 i0 ~  h1 iDesk Reference and package insert should also put a
/ A5 w- W; S9 _2 V+ J/ Kwarning about the virilizing effect on a male or
3 ?. L1 Y% M1 [2 z  Y- {- xfemale child who might come in contact with some-
$ l- r. r5 ?3 ^7 |one using any of these products.
' _/ d. u% Y' T$ @) EReferences8 D- O  {# N2 O, t
1. Styne DM. The testes: disorder of sexual differentiation
/ D% M( A5 [) I8 `8 p/ l0 o1 r$ Aand puberty in the male. In: Sperling MA, ed. Pediatric
$ J- O, j" o- _2 Y2 N; L: fEndocrinology. 2nd ed. Philadelphia, PA: WB Saunders;
- I( B# E! f3 F( x$ `+ z+ g2002: 565-628.5 A4 f& n1 R, R  g: O
2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious
$ u  F+ l3 s) _: b7 G3 C7 A' hpuberty 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
. F) }4 h) f# M+ g8 h4 Q1 J/ k& }Boy Induced by Indirect Topical
0 e" U: S. y0 M! n$ n3 vExposure to Testosterone
' s* [5 l# }7 S/ Y& WSamar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,2
/ d9 m: p. q0 U* a; M8 A! aand Kenneth R. Rettig, MD1) k$ z8 K0 C$ B2 Z7 k' M6 M; O
Clinical Pediatrics
9 ?+ O# s  ?) q0 j* G9 uVolume 46 Number 6
6 {+ T* o5 e0 q) d) J/ z/ ]# FJuly 2007 540-543: ?, |; v+ n8 G" M! W) s0 y
© 2007 Sage Publications" u$ r. ~+ h4 Z% z
10.1177/0009922806296651- w5 ]! J) z0 \4 A
http://clp.sagepub.com
& V+ c: ^1 p$ C- J5 r6 H" C6 Lhosted at4 S9 y: [: C( q: o1 G' ^
http://online.sagepub.com
; m5 `+ K2 A( r0 g* d, `Precocious puberty in boys, central or peripheral,
. x4 A" Z! F- j+ lis a significant concern for physicians. Central5 W' h$ S) w6 B+ K) ]) [5 u
precocious puberty (CPP), which is mediated
+ {/ e* o0 c" j. @: Ithrough the hypothalamic pituitary gonadal axis, has8 E/ L: [5 X+ n! p
a higher incidence of organic central nervous system2 ]2 h% R  d$ p. X
lesions in boys.1,2 Virilization in boys, as manifested
, p$ W" h5 X( m; ^, H. jby enlargement of the penis, development of pubic( Z/ v- w# y! M, [6 ~8 v8 c
hair, and facial acne without enlargement of testi-- F+ S2 L, t" q* h# A8 n
cles, suggests peripheral or pseudopuberty.1-3 We8 e7 w+ |! E$ ^# b& R4 \: @4 e
report a 16-month-old boy who presented with the
+ q" J+ v: u7 o( B. @4 v  Denlargement of the phallus and pubic hair develop-' {  {4 S8 F0 N) K
ment without testicular enlargement, which was due+ V0 ]+ s; s" {. j& L2 E( b+ T
to the unintentional exposure to androgen gel used by
( c" x3 L- \- a; x$ A& mthe father. The family initially concealed this infor-
, o  v! C2 C$ |; H- y% Q0 wmation, resulting in an extensive work-up for this
. H% ~2 S; P+ a" s5 Pchild. Given the widespread and easy availability of
/ j. @2 x" T# C0 \! Stestosterone gel and cream, we believe this is proba-
, d8 q1 J# R# h  hbly more common than the rare case report in the
; H/ }% ?* }5 ~+ o* G7 X3 H2 |3 Bliterature.4
. J4 \  q/ O: W# |" U- L- ePatient Report
8 t6 N/ ^$ l  ]3 l7 d% U4 ^/ iA 16-month-old white child was referred to the
9 f5 v! b5 P3 Iendocrine clinic by his pediatrician with the concern- M! A3 z7 p9 G6 P5 k
of early sexual development. His mother noticed
; t! L: p  B) l' Y. R" Ulight colored pubic hair development when he was
2 h9 X4 m1 r/ Q2 m, y+ ]4 }From the 1Division of Pediatric Endocrinology, 2University of' h, j& i" ~2 q. L$ v" _+ X
South Alabama Medical Center, Mobile, Alabama.1 K/ f( k' ^* y5 G1 F7 {
Address correspondence to: Samar K. Bhowmick, MD, FACE,5 }$ S4 E' v. Q
Professor of Pediatrics, University of South Alabama, College of" `9 s$ P3 X& I+ b; \; R2 ~
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;
1 H$ j( u& H# `6 i/ _. K9 Ve-mail: [email protected].
. g. j+ @; _6 U6 X1 z$ [0 o0 ?$ {about 6 to 7 months old, which progressively became3 k9 G) Q0 `7 A: z& ]( U: x
darker. She was also concerned about the enlarge-$ @7 v0 v' W" D: \6 D1 e$ L6 I
ment of his penis and frequent erections. The child1 N7 `. Z$ N5 _% D
was the product of a full-term normal delivery, with
9 ^9 @' e6 S# S2 La birth weight of 7 lb 14 oz, and birth length of. |9 Q7 [4 E/ I9 e; W! K5 z
20 inches. He was breast-fed throughout the first year- G8 l6 I, S, ?' W! C2 d, }' e  f
of life and was still receiving breast milk along with) `9 J; F9 L4 A- x
solid food. He had no hospitalizations or surgery,
# C8 X( E/ l; K! s+ [4 ^9 Xand his psychosocial and psychomotor development% _0 H0 h0 r" ^
was age appropriate./ _( e& O$ r' X; n
The family history was remarkable for the father,
) P; {4 z- f: Y% Y* U# h) G) kwho was diagnosed with hypothyroidism at age 16,
. L; e" B7 i5 @, H7 G$ t$ @which was treated with thyroxine. The father’s
: I7 n- h$ Q6 e1 K- T7 }# [height was 6 feet, and he went through a somewhat
7 ?" C3 X/ I* k9 Iearly puberty and had stopped growing by age 14.
" i$ M& e; f0 e$ S* SThe father denied taking any other medication. The
3 h' k2 H% E  Z7 h) c; Qchild’s mother was in good health. Her menarche! d' N' x# {2 z5 \/ r" \; u( a
was at 11 years of age, and her height was at 5 feet" ?) X3 _6 D9 c* v- M
5 inches. There was no other family history of pre-: D- Q) v! r0 S2 ^! }3 h9 o
cocious sexual development in the first-degree rela-9 G$ V$ l" O& I  a/ B) C
tives. There were no siblings.
1 ]  }- |4 Z, uPhysical Examination
0 \0 h) k& p7 y+ GThe physical examination revealed a very active,. ]; G* o1 a/ H  Y' v% @
playful, and healthy boy. The vital signs documented# J" L' x, u3 L: }
a blood pressure of 85/50 mm Hg, his length was
+ [' M% b* T8 Y3 L90 cm (>97th percentile), and his weight was 14.4 kg
9 \- |7 _" J1 m7 L# T5 `2 r(also >97th percentile). The observed yearly growth9 `2 _, t3 F( i2 a! N& S' e
velocity was 30 cm (12 inches). The examination of8 L; n  D  J% J/ Z/ \$ ?  O
the neck revealed no thyroid enlargement.
& m/ m# {# p- w# ~* H" Y! k" e- k* w* tThe genitourinary examination was remarkable for
# Q/ l3 Z' \8 ~# oenlargement of the penis, with a stretched length of
  v* I4 _; U8 v5 [6 K8 cm and a width of 2 cm. The glans penis was very well" m8 j2 k6 F* p7 ^7 |3 Q
developed. The pubic hair was Tanner II, mostly around7 f2 d0 M: E  @9 K- P- k
540  H2 d2 h5 I' t2 p  o$ ^
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from# f) N) k$ K) G$ X$ W
the base of the phallus and was dark and curled. The
  A* C# {" z& M5 v7 ^testicular volume was prepubertal at 2 mL each.7 J# P6 ~. ]* _) C, C+ h& g! z
The skin was moist and smooth and somewhat! y9 _7 b6 _! k9 p! E4 B- O
oily. No axillary hair was noted. There were no) I' i" e, w) A/ Z7 X9 X: m
abnormal skin pigmentations or café-au-lait spots.
, w; c7 m+ ?( `% t: K2 R( qNeurologic evaluation showed deep tendon reflex 2+
7 A& p) O  r. J& C' R- ~- qbilateral and symmetrical. There was no suggestion; [+ z3 y3 }! h: c
of papilledema.
0 o1 y5 u4 Y4 |- p1 \% {Laboratory Evaluation2 l+ K: `' g3 j1 _' Y
The bone age was consistent with 28 months by
" O5 H$ J7 v5 K8 k) t* pusing the standard of Greulich and Pyle at a chrono-. X* g) H5 L. Y' I
logic age of 16 months (advanced).5 Chromosomal0 h( p, N- D& @" w* A/ t& B3 @; H
karyotype was 46XY. The thyroid function test
" A2 n' w4 T4 k( }( [! f& x$ O6 kshowed a free T4 of 1.69 ng/dL, and thyroid stimu-
- L% H5 f" z- I" t% }5 ?lating hormone level was 1.3 µIU/mL (both normal).' z7 P' |" s6 C, W4 {" g
The concentrations of serum electrolytes, blood
( ?- \8 e- I' h( t4 U' w1 o& Burea nitrogen, creatinine, and calcium all were: E5 z( Z  [7 }0 m# C$ }
within normal range for his age. The concentration  _: b# M9 C2 d6 C% V
of serum 17-hydroxyprogesterone was 16 ng/dL) x% y# P3 K" W; B' e2 R
(normal, 3 to 90 ng/dL), androstenedione was 20( L- }* Z+ I5 l! O. F+ c0 H$ z
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-
* A0 B# x( g0 M+ |$ s. Gterone was 38 ng/dL (normal, 50 to 760 ng/dL),0 k9 l0 I# k( w. L8 d! N: g
desoxycorticosterone was 4.3 ng/dL (normal, 7 to
3 q: i9 m5 @% h5 E' _% {5 B49ng/dL), 11-desoxycortisol (specific compound S)
6 E* y2 Y: x0 A+ X% U& Lwas 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-
1 L( I6 n  [8 h( b& _. L0 i/ B5 Wtisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total
# g& A0 I& d: [' ?( y. xtestosterone was 60 ng/dL (normal <3 to 10 ng/dL),7 S0 G  P1 C2 n: S7 Z' S3 _& u
and β-human chorionic gonadotropin was less than( M# X) ?1 r$ F9 C0 h1 f  N
5 mIU/mL (normal <5 mIU/mL). Serum follicular. _, g, m6 Z7 }" r  I& z) j. `2 }6 r( @
stimulating hormone and leuteinizing hormone1 G3 \5 [: a9 w1 R' Z  x  [
concentrations were less than 0.05 mIU/mL6 T$ y. c. O, e( I6 A5 M# r3 M
(prepubertal).
5 n1 V  D8 {/ K* ^/ zThe parents were notified about the laboratory
$ y4 M1 h  _1 a, E) E' _$ `6 ~results and were informed that all of the tests were
/ ~- J1 w$ v6 E, e5 q0 Z. |) Snormal except the testosterone level was high. The* |7 @: Y" e' z' n
follow-up visit was arranged within a few weeks to
2 r8 G$ a6 |& V8 U  L) Mobtain testicular and abdominal sonograms; how-
6 i' b! B$ z/ u& S: `: `ever, the family did not return for 4 months.
5 J+ ?0 m3 d% |2 f3 aPhysical examination at this time revealed that the
' Y- E. c9 c# g3 f* [& D; c$ {' ]child had grown 2.5 cm in 4 months and had gained
: ~! T8 t3 }4 k. {& s" X9 s2 kg of weight. Physical examination remained
& P4 P6 {" w& y4 T! m/ c" p: {unchanged. Surprisingly, the pubic hair almost com-
) g6 I3 r5 A2 kpletely disappeared except for a few vellous hairs at
7 x) e4 T3 M) jthe base of the phallus. Testicular volume was still 2
. _5 r& O" R* J& n- V! Q$ }2 }8 RmL, and the size of the penis remained unchanged.
# d. b& [5 [2 N9 Z" u5 l( \9 LThe mother also said that the boy was no longer hav-
5 F8 @2 I% ]% p( [+ J8 N, F" Hing frequent erections./ Q- A7 t1 A* h! r; q/ z7 g( M
Both parents were again questioned about use of
2 B' C. m$ q  |: o, v. c# Kany ointment/creams that they may have applied to
; v0 J* N4 ]- d2 J$ {the child’s skin. This time the father admitted the
: i! w) `, w4 W) L! g" FTopical Testosterone Exposure / Bhowmick et al 5414 \  A6 K( s* R, N
use of testosterone gel twice daily that he was apply-  J" d4 L+ f, T, ?
ing over his own shoulders, chest, and back area for* J1 ~$ X0 G# M, v, W/ k3 x; W
a year. The father also revealed he was embarrassed$ k8 a. `6 e9 o* h" B$ A
to disclose that he was using a testosterone gel pre-4 l1 {" i0 A( Q8 O9 W
scribed by his family physician for decreased libido
: r7 `: r& F9 r) Q2 ~secondary to depression.
: }& t8 n" \; D5 c" y1 ]0 A  lThe child slept in the same bed with parents.7 F: k9 c7 S; V! y6 R: z4 e* h
The father would hug the baby and hold him on his0 N2 v4 }0 C- l* z+ S; T6 V
chest for a considerable period of time, causing sig-
( D, d. B  N" W& @8 ^nificant bare skin contact between baby and father.5 _9 n$ U& L( ]* ]# s' P1 B
The father also admitted that after the phone call,
2 N8 \& z( C3 y! Ywhen he learned the testosterone level in the baby+ M9 v/ D1 w3 h4 j
was high, he then read the product information
$ E( Q, T. ]  f' Spacket and concluded that it was most likely the rea-
4 o. k7 i3 s0 [son for the child’s virilization. At that time, they4 W. V( o! b4 s
decided to put the baby in a separate bed, and the( G  ]; y( f7 u1 m) ?) \
father was not hugging him with bare skin and had
1 L- [* G. I# t# L* F' x/ Sbeen using protective clothing. A repeat testosterone# p, e9 B) G5 W; Z! K
test was ordered, but the family did not go to the4 W; X) K, ?  V2 h* a
laboratory to obtain the test.
4 h: f7 U0 s' q5 D/ jDiscussion" G6 U; u) X- i
Precocious puberty in boys is defined as secondary
' q4 S/ m. [) H( q# d2 @sexual development before 9 years of age.1,4) k, x' f& b* d3 Y& y
Precocious puberty is termed as central (true) when
, v3 r3 G; y8 @- G: Oit is caused by the premature activation of hypo-6 q9 t- V; T& [& E' @
thalamic pituitary gonadal axis. CPP is more com-7 N8 K# q8 b) ?" A+ x
mon in girls than in boys.1,3 Most boys with CPP) e! Y: ]- L1 E: b# v
may have a central nervous system lesion that is
8 ~4 a$ ?/ h- g+ M7 N% Mresponsible for the early activation of the hypothal-: h! n- M. P; W: h! _
amic pituitary gonadal axis.1-3 Thus, greater empha-9 u- a1 n! m  X2 {
sis has been given to neuroradiologic imaging in
/ o5 S2 [% J; x9 D" dboys with precocious puberty. In addition to viril-
5 ^& a5 u1 c1 x( r, Y3 o* V5 U2 |ization, the clinical hallmark of CPP is the symmet-$ A2 X! W# J" g7 F- A0 c3 U
rical testicular growth secondary to stimulation by7 y) O' I5 \* F; ~4 M% l
gonadotropins.1,3* U/ q3 T1 _( d: Z
Gonadotropin-independent peripheral preco-( B9 f. }. L4 @0 I- U
cious puberty in boys also results from inappropriate
: W7 X$ y4 M6 _2 N# l( E4 |8 Iandrogenic stimulation from either endogenous or7 i9 w3 H& a' r0 O  t8 F# s* k. r5 E
exogenous sources, nonpituitary gonadotropin stim-
) x5 G2 p% w+ _. \- ]2 Yulation, and rare activating mutations.3 Virilizing, l# V+ p4 o2 n" H6 O
congenital adrenal hyperplasia producing excessive$ S4 W$ P6 H9 t! g; P
adrenal androgens is a common cause of precocious& V/ d  W& k) w5 C9 U+ y; k
puberty in boys.3,4
7 o& o" x& _- K- Q  `( Z+ f6 gThe most common form of congenital adrenal& ^: N3 C3 b1 A
hyperplasia is the 21-hydroxylase enzyme deficiency.1 F! K% h$ p7 j% z% s" t6 w* a
The 11-β hydroxylase deficiency may also result in/ E$ U4 P' c" g0 L6 v
excessive adrenal androgen production, and rarely,+ U2 f' S- k' C& K
an adrenal tumor may also cause adrenal androgen
7 w' \0 y' Q  {: x  t- texcess.1,3! ~$ _) K* |; [8 V( Q. b$ K
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from( k  E8 W8 s7 C8 ?# w( f: P5 h
542 Clinical Pediatrics / Vol. 46, No. 6, July 20075 n- g+ l8 {$ a- m# L
A unique entity of male-limited gonadotropin-
7 T2 R3 j: v3 z  n# U" \" zindependent precocious puberty, which is also known0 v/ F+ T& f  X* P6 X7 b+ R
as testotoxicosis, may cause precocious puberty at a9 M$ `0 A% k) @* H0 |9 V7 _; v
very young age. The physical findings in these boys
2 _) R2 B8 y# k/ w, x' m: S+ Xwith this disorder are full pubertal development,5 p$ m5 F2 N/ h7 `) P( l& O
including bilateral testicular growth, similar to boys/ n3 N5 z, l6 A, _
with CPP. The gonadotropin levels in this disorder
- |3 U' a* }% Jare suppressed to prepubertal levels and do not show) S  x8 y3 T" z. G7 Z
pubertal response of gonadotropin after gonadotropin-
8 `+ X5 l( [6 h6 X& j# Y& g8 ]- o' l$ breleasing hormone stimulation. This is a sex-linked
, V% _% w8 U. ~$ k8 V) Kautosomal dominant disorder that affects only
9 a3 ~4 C2 [! T; \& W7 Rmales; therefore, other male members of the family( e. ~0 i% L0 L/ l/ |3 Y
may have similar precocious puberty.3
) i" C/ F+ s6 J$ ^: N6 JIn our patient, physical examination was incon-
' a8 d6 @7 [; `- F! }sistent with true precocious puberty since his testi-
4 Q$ S: B' F! B8 S5 s. mcles were prepubertal in size. However, testotoxicosis
% W) N% R/ z$ n) t; vwas in the differential diagnosis because his father
- R  a' v4 |  ]started puberty somewhat early, and occasionally,
  Y+ P  u8 G, @( {testicular enlargement is not that evident in the
4 S* ?/ v- _! l$ C* hbeginning of this process.1 In the absence of a neg-
) @: o) Y2 P& [ative initial history of androgen exposure, our7 o2 u# t3 x/ O3 V7 G
biggest concern was virilizing adrenal hyperplasia,; [( {/ W  F: v3 _# @
either 21-hydroxylase deficiency or 11-β hydroxylase
0 N: N' _& I7 h& f( @" Zdeficiency. Those diagnoses were excluded by find-4 s0 ?8 O$ V$ M. ]
ing the normal level of adrenal steroids.5 j& ~9 d$ i# a5 A# r/ |" }
The diagnosis of exogenous androgens was strongly
3 B5 P! w" i8 M8 k, w$ D% z; Csuspected in a follow-up visit after 4 months because, e) f# Z# m4 G
the physical examination revealed the complete disap-. [9 o6 i$ e' X( ^# }
pearance of pubic hair, normal growth velocity, and- H$ W- V+ e; I4 h  B
decreased erections. The father admitted using a testos-
0 @' V. O8 s* O5 P. r, n' Q  Jterone gel, which he concealed at first visit. He was" k3 X% P; h9 g# u0 f
using it rather frequently, twice a day. The Physicians’
/ I7 }% _9 t, @" f( }9 }Desk Reference, or package insert of this product, gel or
! u' b" a' U7 B% Xcream, cautions about dermal testosterone transfer to
) d; E$ N% a9 w/ `9 lunprotected females through direct skin exposure.
3 i0 Z1 ]  a$ _6 jSerum testosterone level was found to be 2 times the4 c) c% e" G$ `4 N) @& B( f
baseline value in those females who were exposed to- Z- ?& J  u$ w4 \1 O* G
even 15 minutes of direct skin contact with their male
9 G8 Q' }$ m6 P  {5 jpartners.6 However, when a shirt covered the applica-
+ N, [. l! ]  N3 Ttion site, this testosterone transfer was prevented.
/ ]3 c! F7 J4 p: Z9 DOur patient’s testosterone level was 60 ng/mL,! Q8 Y3 b: e- {+ ]  r
which was clearly high. Some studies suggest that
: D$ }4 n5 x( ^+ Rdermal conversion of testosterone to dihydrotestos-# X+ r1 C7 N6 a$ L7 g2 P
terone, which is a more potent metabolite, is more8 c! l0 }/ C- k( f! {1 l; z. a+ ~
active in young children exposed to testosterone; k# Q% M9 B+ Y2 k/ k$ \) x
exogenously7; however, we did not measure a dihy-
. z5 D+ C' d1 d4 edrotestosterone level in our patient. In addition to
4 V0 p- e, e2 y. @virilization, exposure to exogenous testosterone in& C/ S5 {; b4 z6 D- \% W2 C
children results in an increase in growth velocity and2 J( I/ b) Y" e4 \
advanced bone age, as seen in our patient.& g; Q( H4 p: z
The long-term effect of androgen exposure during" e+ i6 p' C4 H2 ~1 b" i" I% T& O# a+ s
early childhood on pubertal development and final: `* l6 `7 P# T' X1 x; ~
adult height are not fully known and always remain! Y* U+ z) x4 y" @0 O8 w
a concern. Children treated with short-term testos-
& R+ @& p8 z! a1 [terone injection or topical androgen may exhibit some
: }6 E0 k5 {- R- M( x8 x) Cacceleration of the skeletal maturation; however, after0 ^: I' @# g8 q; M6 }( ^1 f$ [
cessation of treatment, the rate of bone maturation6 E! Q2 b6 _8 G/ E6 m7 p
decelerates and gradually returns to normal.8,9% V1 N* t, [, {. L2 E1 R
There are conflicting reports and controversy
' `& [" h  t; z8 ^( b, L3 vover the effect of early androgen exposure on adult& g$ L0 K, O9 o3 _5 t6 A7 U- X/ `- j5 s
penile length.10,11 Some reports suggest subnormal
  n$ _3 |0 Z) A; wadult penile length, apparently because of downreg-# `' u0 v& `, R1 G" T
ulation of androgen receptor number.10,12 However,8 W$ E3 V7 Q9 t; P+ Z+ m$ d' Y
Sutherland et al13 did not find a correlation between
+ `, ?6 B" ?8 J) x0 mchildhood testosterone exposure and reduced adult
7 h4 B' @  T# T* N1 U8 b+ lpenile length in clinical studies.3 ~4 l" r3 d2 q3 [; i
Nonetheless, we do not believe our patient is
+ W" @; L2 B4 u/ I$ k; _) Qgoing to experience any of the untoward effects from+ z2 g/ G- ?6 x- K2 X& _
testosterone exposure as mentioned earlier because9 h. D$ @% ~- k+ D
the exposure was not for a prolonged period of time.( F* j" K0 ~9 H5 d# g3 L
Although the bone age was advanced at the time of/ e% r' n+ T5 `5 b7 N3 G; H
diagnosis, the child had a normal growth velocity at* W" z( m, X9 U! G
the follow-up visit. It is hoped that his final adult6 Y+ R+ L1 J# C3 E% n
height will not be affected.
( @8 V/ H3 \  q% Z* dAlthough rarely reported, the widespread avail-, o& Y* H5 b2 |
ability of androgen products in our society may
7 w& c$ |  N% Xindeed cause more virilization in male or female  h! N% R0 U4 \. `% ?) c+ }
children than one would realize. Exposure to andro-
0 j1 l3 g7 R7 Rgen products must be considered and specific ques-
# B8 P6 r. ]. k1 T0 W8 h! ?tioning about the use of a testosterone product or
. X6 e; Q- L3 u7 K' B! c7 r5 Qgel should be asked of the family members during
3 Y9 W8 D; u7 }0 E+ ~- R- \the evaluation of any children who present with vir-
. `+ r/ I" Y. oilization or peripheral precocious puberty. The diag-+ C/ F5 L# s! R2 X/ T9 D' [
nosis can be established by just a few tests and by
/ m( u+ D. q( cappropriate history. The inability to obtain such a3 ]! c  H  D7 w% k$ O5 q$ g; @
history, or failure to ask the specific questions, may
# R' O4 j6 {9 Z6 Qresult in extensive, unnecessary, and expensive
6 m; Q9 G5 Y" einvestigation. The primary care physician should be
8 n! a) ?' l1 v+ Paware of this fact, because most of these children
* J9 }+ }7 G. ^. s& Amay initially present in their practice. The Physicians’( B( x# `& z6 ~+ A9 x( ~7 X
Desk Reference and package insert should also put a3 k9 S6 r1 G5 h
warning about the virilizing effect on a male or
; W% x: s  D" U. ?& {9 yfemale child who might come in contact with some-
7 c; I2 X$ t( vone using any of these products.
+ c' |8 g. t4 ^/ i# zReferences# Y- \+ s* {2 Z" y( G/ }  p' c  D4 S
1. Styne DM. The testes: disorder of sexual differentiation
; y1 |; A4 k8 ]0 ^. nand puberty in the male. In: Sperling MA, ed. Pediatric4 v4 J" _8 h, }- d$ X& W# H
Endocrinology. 2nd ed. Philadelphia, PA: WB Saunders;
/ V) I7 z5 Q1 ]  Z% F% k2002: 565-628.
* @8 k7 V7 W; a+ b! O2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious
$ F5 N5 l- ^( J* b0 c1 e! Rpuberty 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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- N& q) `' Z- }4 ?4 w# y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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