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Sexual Precocity in a 16-Month-Old
* Q0 l2 F5 o+ R2 ~7 lBoy Induced by Indirect Topical
7 t! k4 X8 r& ]: ]Exposure to Testosterone" ^5 @+ h& o# w6 i$ O" K
Samar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,2
2 k0 O  e5 r: |. x# S  {and Kenneth R. Rettig, MD1
7 x0 T3 r+ @4 s- j8 {6 @! GClinical Pediatrics" n. B  y% L" ?
Volume 46 Number 66 D/ P/ E: a6 v) u
July 2007 540-543' W" Q$ L; w( n! p3 T: o. |5 s
© 2007 Sage Publications$ A) b( G# g2 K8 R1 g# U
10.1177/0009922806296651
5 z7 k/ N( Q0 `( J4 k3 Qhttp://clp.sagepub.com: G1 C- f3 w! J! ?  a" ?
hosted at- K& \: p( q9 z& A
http://online.sagepub.com
9 M0 F: _6 o; e  bPrecocious puberty in boys, central or peripheral,; c* d7 W& d% E' C
is a significant concern for physicians. Central- n0 y! R5 A2 M: W- T
precocious puberty (CPP), which is mediated
) v& |9 _6 b, Z4 Ythrough the hypothalamic pituitary gonadal axis, has  k2 B; U" Y6 {4 J
a higher incidence of organic central nervous system( A/ k4 F% p  y+ D
lesions in boys.1,2 Virilization in boys, as manifested
; @  N# G0 X  ?by enlargement of the penis, development of pubic' H) X& M" d: C/ J; O: Z  p# i
hair, and facial acne without enlargement of testi-
0 ]. L% g# U' c. vcles, suggests peripheral or pseudopuberty.1-3 We# G8 t2 q/ I$ j6 }  J& q
report a 16-month-old boy who presented with the
$ z9 a- U9 W* v. `5 Zenlargement of the phallus and pubic hair develop-
7 D& Q6 g1 n# \5 n% q2 h( R# nment without testicular enlargement, which was due
0 _- {; @9 D% vto the unintentional exposure to androgen gel used by  `1 u2 i+ ^7 @3 W0 J! {
the father. The family initially concealed this infor-3 s* o3 b; S( R
mation, resulting in an extensive work-up for this
: F- J  u* F# }" Z8 Cchild. Given the widespread and easy availability of
/ I' [: @: O) ~5 etestosterone gel and cream, we believe this is proba-
# P6 {# M* X$ e* Ebly more common than the rare case report in the% C& i  q. c, }5 F3 u, r2 W2 d
literature.4+ S1 d( P% k. l4 z0 Y% a' W
Patient Report
( r* J+ h% O, z; Q9 cA 16-month-old white child was referred to the
+ q9 Q, @) r/ ~2 a; t1 o6 Aendocrine clinic by his pediatrician with the concern
3 u  `' k: J) e9 f; s2 qof early sexual development. His mother noticed
# _  I1 \. L, Slight colored pubic hair development when he was
1 P' z' a) j9 s( K5 a# [8 PFrom the 1Division of Pediatric Endocrinology, 2University of
6 q$ j: |( z+ \( a( m8 fSouth Alabama Medical Center, Mobile, Alabama.0 C2 R9 V! Z- C# L$ a, z0 b
Address correspondence to: Samar K. Bhowmick, MD, FACE,
' H5 j* n9 E: s( [" u4 nProfessor of Pediatrics, University of South Alabama, College of
% a4 t5 H9 {% V. K6 zMedicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;/ \9 h$ y2 M: s7 u1 z3 I3 y
e-mail: [email protected].
7 e& h0 x: x6 M3 G1 Q  nabout 6 to 7 months old, which progressively became5 p. J5 ^: a- X: ~0 n3 t
darker. She was also concerned about the enlarge-
* ?3 X* O$ c- u1 E1 X2 `ment of his penis and frequent erections. The child
6 T9 [: |$ _5 E" Zwas the product of a full-term normal delivery, with
. `3 q. Y1 a& v0 c# A# c4 za birth weight of 7 lb 14 oz, and birth length of6 r5 q0 R  G+ e- v% K. _
20 inches. He was breast-fed throughout the first year
# J1 j  w4 j7 Y+ Z% gof life and was still receiving breast milk along with
9 _$ a# `; c4 csolid food. He had no hospitalizations or surgery,2 _$ z* F/ }5 z# ^/ @) ~
and his psychosocial and psychomotor development
2 T; U' B5 q4 X. ?% |  jwas age appropriate.
# l# `9 O8 K3 p5 jThe family history was remarkable for the father,
3 x  t. Q0 V+ E" M/ Y" `who was diagnosed with hypothyroidism at age 16,! j0 O4 T8 y6 M. C/ @: U& d, X
which was treated with thyroxine. The father’s
, O* f9 C0 |- F4 ]height was 6 feet, and he went through a somewhat
: L& ?* `& ?1 o" V7 Qearly puberty and had stopped growing by age 14.
2 g5 X3 C  B) |* M8 w' H0 rThe father denied taking any other medication. The
4 T/ E4 [4 W, R6 O; Q7 Qchild’s mother was in good health. Her menarche
7 K5 B! G, D: G# c, ~1 nwas at 11 years of age, and her height was at 5 feet
# K- d, s) i# ]3 P# o5 inches. There was no other family history of pre-
( V- H% A! A2 d# p+ E. ^cocious sexual development in the first-degree rela-
% ^0 x7 i* i! u9 e! E0 otives. There were no siblings.; N0 a6 J- B! n
Physical Examination' \1 [4 ~# D6 J# t9 [1 O1 c
The physical examination revealed a very active,# c8 Y' v8 V. R
playful, and healthy boy. The vital signs documented# L1 Y3 V0 t- h
a blood pressure of 85/50 mm Hg, his length was* e8 S: p3 T% j0 l0 _6 ^5 g) r$ y/ ]
90 cm (>97th percentile), and his weight was 14.4 kg7 I% C& z' P6 k% l$ e
(also >97th percentile). The observed yearly growth/ M' P1 S3 a: a9 u* u. i0 s
velocity was 30 cm (12 inches). The examination of
' J9 v+ F) U, W$ f2 @the neck revealed no thyroid enlargement.% \, R; F) l0 z& t. T
The genitourinary examination was remarkable for
3 w3 f  {0 _2 t+ z0 eenlargement of the penis, with a stretched length of5 ?% D5 Q& P" z: h% u
8 cm and a width of 2 cm. The glans penis was very well( {/ p* k& h7 |5 H1 p  T
developed. The pubic hair was Tanner II, mostly around! n7 F% B, m. W. ~6 {
540
$ b( i; \( z0 m( yat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from) I0 i+ r" q7 l: Y6 ?' P
the base of the phallus and was dark and curled. The6 E2 m# [$ q( ~! R; ~- {
testicular volume was prepubertal at 2 mL each.2 b9 u% W4 \6 r
The skin was moist and smooth and somewhat! I/ o- s# |) i6 Z! J
oily. No axillary hair was noted. There were no
2 O2 r" F" c, S$ N7 \6 tabnormal skin pigmentations or café-au-lait spots.) n) A4 u7 k/ \7 G
Neurologic evaluation showed deep tendon reflex 2+
3 Y& F$ ]2 c' F, n" p/ A' {bilateral and symmetrical. There was no suggestion
4 g8 B1 q5 Z; O' [0 mof papilledema.
6 l& R: x0 k2 U4 D, E1 GLaboratory Evaluation
; P* k& g* R$ r9 _( T6 zThe bone age was consistent with 28 months by
* j) e% R, p5 p: e. n4 rusing the standard of Greulich and Pyle at a chrono-
( G$ R5 {! e/ M$ F5 m! W3 Blogic age of 16 months (advanced).5 Chromosomal/ Z) D! j* N7 F+ w0 @
karyotype was 46XY. The thyroid function test% t. \% u( z$ Y
showed a free T4 of 1.69 ng/dL, and thyroid stimu-
" U8 p$ [# J* A0 _% }, q' \2 a* alating hormone level was 1.3 µIU/mL (both normal).
% o8 C) E5 ?& h7 X0 U8 @& m" A% ]6 I3 MThe concentrations of serum electrolytes, blood0 W* W$ u; _, T
urea nitrogen, creatinine, and calcium all were0 J* b2 a) x( K  q
within normal range for his age. The concentration9 V/ E& s( |2 J8 j5 s  W9 X
of serum 17-hydroxyprogesterone was 16 ng/dL
$ T& F: r" _8 [1 X0 e4 i0 f(normal, 3 to 90 ng/dL), androstenedione was 20
0 x4 \" y2 g* u# x! ing/dL (normal, 18 to 80 ng/dL), dehydroepiandros-
: D. O" X! ?' T! N5 T& L& Gterone was 38 ng/dL (normal, 50 to 760 ng/dL),
) k: i  u6 p6 t, Y0 t0 tdesoxycorticosterone was 4.3 ng/dL (normal, 7 to8 j  _# q, Z; R* l
49ng/dL), 11-desoxycortisol (specific compound S)$ c6 W5 Z8 z. k2 n
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-% R0 Q% \; P: [; `4 F4 ?
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total- O2 Y2 d4 H- l4 Z% d+ F+ `" G
testosterone was 60 ng/dL (normal <3 to 10 ng/dL),
  C' q, v% J7 G( G* p8 Q- b0 j2 rand β-human chorionic gonadotropin was less than
% D2 v+ x: c. U% `. w. d) A. h% ?5 mIU/mL (normal <5 mIU/mL). Serum follicular  F2 N# a9 ~  F/ H$ l
stimulating hormone and leuteinizing hormone
" ~& G2 c& X( h% Zconcentrations were less than 0.05 mIU/mL% I9 h6 o" ]3 {. V* ]4 d
(prepubertal).
  U+ ]/ d6 {4 _# Z6 r$ V1 NThe parents were notified about the laboratory
9 m, Z  W% Q$ I. k/ f8 a0 {: a* Yresults and were informed that all of the tests were  W7 N& ?8 b: t1 z
normal except the testosterone level was high. The
0 @  a$ C6 J) |: _" W/ ]  Jfollow-up visit was arranged within a few weeks to
5 G! e$ s3 X9 k3 C  }obtain testicular and abdominal sonograms; how-1 R9 U$ y! t# R; \9 g/ _' p
ever, the family did not return for 4 months.
7 M- r( a9 K) m) w# v; z/ P$ a$ KPhysical examination at this time revealed that the( ?$ ]4 W5 I7 L% E* X2 r. i+ H
child had grown 2.5 cm in 4 months and had gained
4 c0 ~' R$ x! j7 y% V2 kg of weight. Physical examination remained' Q0 c. \0 \* B
unchanged. Surprisingly, the pubic hair almost com-7 [) e9 Y4 A+ h; ^' c! x; R
pletely disappeared except for a few vellous hairs at
6 ~& I% Y0 F& G- i* U, Z& nthe base of the phallus. Testicular volume was still 2$ @# l! d/ w2 W
mL, and the size of the penis remained unchanged.& Y$ c( W1 p5 L/ X
The mother also said that the boy was no longer hav-
1 R4 c$ K9 r% S" [2 i0 `ing frequent erections.6 \: o: ]( [* w7 L
Both parents were again questioned about use of# H& g% r- n# a& a9 b  ?$ z
any ointment/creams that they may have applied to) u* K9 @& ~# v
the child’s skin. This time the father admitted the
, _- z6 `3 O, f+ \Topical Testosterone Exposure / Bhowmick et al 5412 m7 m% G4 I: M) O
use of testosterone gel twice daily that he was apply-
0 i; M6 t7 z/ @) A4 g) T6 Ping over his own shoulders, chest, and back area for- v2 g. ?0 c  y, \1 w6 e
a year. The father also revealed he was embarrassed
' Q( t* `- S% R8 A! x8 Hto disclose that he was using a testosterone gel pre-# T( }- M3 x5 o8 J% w& b" p5 u
scribed by his family physician for decreased libido5 L4 D( o8 _& g  J* i, H
secondary to depression.
. \; l! `9 K+ N: kThe child slept in the same bed with parents.
0 }! j% Z4 M. I1 |The father would hug the baby and hold him on his
$ ~  [# p' ~& F  V7 Hchest for a considerable period of time, causing sig-, j% q9 H2 g! m  V9 ]
nificant bare skin contact between baby and father.4 E1 V( c4 `. ]  ?/ l# o
The father also admitted that after the phone call,
- C# c3 F6 Y' h! b; Kwhen he learned the testosterone level in the baby8 M$ |6 ]1 G2 O5 S6 y  w
was high, he then read the product information
' M9 K' n# r/ v: X% I) h- ?2 y+ s" Lpacket and concluded that it was most likely the rea-
2 q4 N& g4 e' {: m  f! n7 Oson for the child’s virilization. At that time, they
7 ?& z4 U* ^, s; P- M5 xdecided to put the baby in a separate bed, and the8 H1 w6 b% ?. \6 ^; T8 Z( N
father was not hugging him with bare skin and had
% i) }/ [4 V' tbeen using protective clothing. A repeat testosterone
( A. `! T5 M' V- r* _; v2 otest was ordered, but the family did not go to the* Y* g# H6 `0 M9 k/ T* g
laboratory to obtain the test.
  u* h3 U* F; v7 _Discussion
6 Z! e) H/ `0 @- s$ ~! c* t  y, iPrecocious puberty in boys is defined as secondary: V5 d, s6 b7 o: V+ Q+ `7 u
sexual development before 9 years of age.1,4
6 ~4 _/ y) N" I0 V! J- z9 x3 @! MPrecocious puberty is termed as central (true) when$ t! ]" h; A) o( ?  u0 x) q
it is caused by the premature activation of hypo-
* Z9 Z# I9 Z5 Z' V8 y" g% _3 Dthalamic pituitary gonadal axis. CPP is more com-% i7 G3 {* S( m$ Q" y
mon in girls than in boys.1,3 Most boys with CPP7 U! l5 O0 \, `
may have a central nervous system lesion that is
2 |9 D; V0 @3 ^$ d: p% ~: Dresponsible for the early activation of the hypothal-# `# u  V* e8 g& i
amic pituitary gonadal axis.1-3 Thus, greater empha-1 y7 s$ V, N& O, i. f2 Y1 y
sis has been given to neuroradiologic imaging in2 h1 n+ \- l- [5 P( e) K: I7 f) v- {
boys with precocious puberty. In addition to viril-+ n' q* F5 ^% M" |( z; x
ization, the clinical hallmark of CPP is the symmet-
2 `' B- D4 T$ n" g2 drical testicular growth secondary to stimulation by. ^3 v9 N( k& W1 w8 G6 t
gonadotropins.1,3
" ]' l" i! P6 jGonadotropin-independent peripheral preco-8 R3 E; q7 ^  J6 j7 ?
cious puberty in boys also results from inappropriate
1 K2 f! u$ E) n7 x9 i$ _androgenic stimulation from either endogenous or
- t; L  V* A# n$ I+ nexogenous sources, nonpituitary gonadotropin stim-
3 Q' F# d: @9 F% Z3 g; T) vulation, and rare activating mutations.3 Virilizing1 }" g8 z8 F5 k3 f! f1 [
congenital adrenal hyperplasia producing excessive
7 u/ o/ f7 V8 d- o+ \4 q8 Vadrenal androgens is a common cause of precocious
: W$ f- j) {+ Ypuberty in boys.3,4
) j; }- ?2 m0 G0 f3 _  DThe most common form of congenital adrenal
3 G4 \& w; o& i+ `( Yhyperplasia is the 21-hydroxylase enzyme deficiency.% d% U1 z0 k+ B6 A4 [. j
The 11-β hydroxylase deficiency may also result in$ \- s* p+ ?  U5 i& I4 h4 N3 y
excessive adrenal androgen production, and rarely,9 N+ V% u* o, J) s! y
an adrenal tumor may also cause adrenal androgen
2 n  j$ e3 d, k, r; }excess.1,3
  X9 V" R4 R! Dat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from- J9 `; k6 {6 ^$ m+ f7 k+ T4 ?
542 Clinical Pediatrics / Vol. 46, No. 6, July 2007
$ y% l& I* i! x3 f3 }A unique entity of male-limited gonadotropin-
6 X" |3 _9 ^; k8 X/ g: }independent precocious puberty, which is also known
: @. @# q/ G6 m- ~* Y' X5 B* h, tas testotoxicosis, may cause precocious puberty at a* u5 d& }9 o: V& D0 v1 v1 C
very young age. The physical findings in these boys
1 R( \9 a" b) A3 p) o$ S3 o& M9 g) i# Vwith this disorder are full pubertal development,
# l7 I2 B6 X- ?6 y# t: z& H; \& u8 Xincluding bilateral testicular growth, similar to boys: a' U( y9 ~+ p
with CPP. The gonadotropin levels in this disorder
, v! a5 ]( v7 p0 Yare suppressed to prepubertal levels and do not show
4 K' Q7 k% T" g  f$ Ppubertal response of gonadotropin after gonadotropin-1 z! h0 x9 z9 r: L$ ?; N4 q+ X& l
releasing hormone stimulation. This is a sex-linked) h8 o! w6 i6 t/ ]  n
autosomal dominant disorder that affects only: I9 N! ^6 A7 g; ^2 |) H4 N
males; therefore, other male members of the family
2 h  H" R1 {3 e7 l; b: u( x( mmay have similar precocious puberty.3: a7 F/ Z1 r0 e- Q- e
In our patient, physical examination was incon-1 ]% n0 W' f& O$ l$ [9 U9 f
sistent with true precocious puberty since his testi-
$ \6 D  _/ V6 zcles were prepubertal in size. However, testotoxicosis' Y7 b! H8 X& p, G
was in the differential diagnosis because his father; x, j; @# a5 S. U, [- M3 C
started puberty somewhat early, and occasionally,8 {7 F5 M% i2 O3 I! M5 r2 w
testicular enlargement is not that evident in the% o- v# X1 _3 ]3 Y* j/ l) ^8 O  I
beginning of this process.1 In the absence of a neg-
1 c+ I! w3 x+ O8 b- Fative initial history of androgen exposure, our' C9 m( j2 q+ l& z, ^
biggest concern was virilizing adrenal hyperplasia,4 p4 D7 k. h4 o- t
either 21-hydroxylase deficiency or 11-β hydroxylase5 f8 D7 h6 v$ [* m
deficiency. Those diagnoses were excluded by find-
8 s3 f+ N2 {, w* Z. ^, t5 P" ^ing the normal level of adrenal steroids.! U: a9 n# w7 `% O! ^# P) h' O
The diagnosis of exogenous androgens was strongly
0 B/ T# J; z8 c5 Fsuspected in a follow-up visit after 4 months because# N( Z) J4 n+ \' i& g' a
the physical examination revealed the complete disap-
( j+ ?) d+ n1 w, ^: S  Ypearance of pubic hair, normal growth velocity, and9 ^( ~# S+ {# ?5 \  T
decreased erections. The father admitted using a testos-
8 H) n9 u8 W- e0 t5 O- C5 Qterone gel, which he concealed at first visit. He was' o0 S" U( p( r9 P$ X
using it rather frequently, twice a day. The Physicians’4 D& G* |. A& k# p4 @% n/ P
Desk Reference, or package insert of this product, gel or) y* O3 w. G& w$ W
cream, cautions about dermal testosterone transfer to
/ d' {8 R* R4 m; j6 a7 Runprotected females through direct skin exposure.. l) X+ `' l5 @, L) p
Serum testosterone level was found to be 2 times the
, c. M+ Q% h6 Z. ibaseline value in those females who were exposed to
4 [. B' F& _" Weven 15 minutes of direct skin contact with their male$ A% x0 E0 J# {. q5 t. y" D
partners.6 However, when a shirt covered the applica-' S! a9 |! L% p
tion site, this testosterone transfer was prevented.: N7 f1 A) H5 ~4 T  Q! E
Our patient’s testosterone level was 60 ng/mL,
8 E% X" i+ p& [: [which was clearly high. Some studies suggest that
0 c) Y7 ]5 T; U/ D& e0 _dermal conversion of testosterone to dihydrotestos-  h- V: R: \. O& S2 T4 ~& {8 X
terone, which is a more potent metabolite, is more( @% C- i! W0 x$ K
active in young children exposed to testosterone, P( D' E: p! W; f5 e
exogenously7; however, we did not measure a dihy-& o3 W6 D: l1 L  z2 I' T! e- y4 S
drotestosterone level in our patient. In addition to; A% j: p$ E; u, h2 H* G' S
virilization, exposure to exogenous testosterone in
* C  K$ o% U3 F3 c$ mchildren results in an increase in growth velocity and
3 W  E7 j, p$ J8 c; c( X/ L  Yadvanced bone age, as seen in our patient.
. E% R0 j# ~& Y. B9 A' _' U$ w# ZThe long-term effect of androgen exposure during5 k6 y" E+ w: `- v& D
early childhood on pubertal development and final
+ l5 i" W" A; b4 _$ }1 t9 badult height are not fully known and always remain$ Z  m& \+ ]2 K8 V% I3 J: I" N$ v
a concern. Children treated with short-term testos-4 ~6 x- X" Y4 r) G; v
terone injection or topical androgen may exhibit some
4 W9 Z- t, v4 O7 n: U; A6 Uacceleration of the skeletal maturation; however, after1 N6 r( M2 x# ]
cessation of treatment, the rate of bone maturation+ E; V5 n5 Y( b
decelerates and gradually returns to normal.8,9( k0 K. c( t! u- ?% V: t
There are conflicting reports and controversy
( i9 V, S: E/ _: H! |over the effect of early androgen exposure on adult  H: c* x$ z; c$ i  y
penile length.10,11 Some reports suggest subnormal1 M/ `' W- ^6 q: c$ I
adult penile length, apparently because of downreg-7 p/ y$ F& i9 ~3 b5 _+ i
ulation of androgen receptor number.10,12 However,* U# U# b$ f. s! n
Sutherland et al13 did not find a correlation between& A) s, u: @1 z  h: _
childhood testosterone exposure and reduced adult
8 F8 a4 y4 _5 @: ^9 Ipenile length in clinical studies.
- `" \) p6 {8 sNonetheless, we do not believe our patient is
/ ^; V( g9 Z, y- f( n- U: ngoing to experience any of the untoward effects from
3 r/ L1 O$ A/ r, [4 stestosterone exposure as mentioned earlier because
+ t3 ?* [2 ~* |; c% B0 fthe exposure was not for a prolonged period of time.2 s0 b* p9 u7 A, u
Although the bone age was advanced at the time of3 T' r) G; C- [: L6 f! v
diagnosis, the child had a normal growth velocity at# h9 Z* A, F2 [2 M+ c
the follow-up visit. It is hoped that his final adult
0 k: M# F) G8 k! eheight will not be affected.2 G" A) q2 Q7 z% g# R' R. M
Although rarely reported, the widespread avail-3 T7 R- C# i( L
ability of androgen products in our society may" @/ z+ m' [4 e6 `
indeed cause more virilization in male or female
3 d$ m$ d8 }! Y& Ochildren than one would realize. Exposure to andro-$ }6 u1 C$ Y1 G; G- E. ?9 G" _
gen products must be considered and specific ques-( c; A/ K. }* ~# U5 q4 \' c
tioning about the use of a testosterone product or
$ D4 l7 R2 d6 |* L5 mgel should be asked of the family members during$ {7 \4 u# f/ J3 t
the evaluation of any children who present with vir-
  |: c( f/ f* o) _ilization or peripheral precocious puberty. The diag-
/ C5 }8 c) r+ Mnosis can be established by just a few tests and by
6 j8 c) t9 K9 C0 Kappropriate history. The inability to obtain such a; e- V+ g5 b6 w+ C7 c% I# T+ k" x; g
history, or failure to ask the specific questions, may0 g  x8 y; I7 @
result in extensive, unnecessary, and expensive  B4 B( b. g7 N( Q
investigation. The primary care physician should be; r. M' U1 e2 i9 i% _
aware of this fact, because most of these children* U0 Q2 [8 M  ^
may initially present in their practice. The Physicians’
5 U. m" P% t5 l0 K' Q- r6 H1 xDesk Reference and package insert should also put a
; M5 A; ^( g2 s) |0 F! d7 ^/ rwarning about the virilizing effect on a male or
$ t8 k9 m0 ^+ _/ r  {- }female child who might come in contact with some-8 Y5 }/ @3 i) x
one using any of these products.
5 y; S6 `$ m$ {! M% rReferences2 k  P! y& q, ~4 a% h: ^( m. S, L
1. Styne DM. The testes: disorder of sexual differentiation
, {% T$ D5 `' Uand puberty in the male. In: Sperling MA, ed. Pediatric. a9 L" g# G8 j2 v; v4 B' ^' B6 H
Endocrinology. 2nd ed. Philadelphia, PA: WB Saunders;) J/ ?& K) K- V* V, s
2002: 565-628.
0 K1 R, Y# r: e2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious  ?4 A9 F3 R. a% k4 L) {% ]- V
puberty 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-Old8 j" S8 m  \+ A- |9 n5 c- M
Boy Induced by Indirect Topical
# Y" b- b$ S% N4 ^* IExposure to Testosterone4 y( C, @3 H5 R% d
Samar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,2
# e6 U  L1 O' o. K& p0 wand Kenneth R. Rettig, MD1
0 p# q3 m: x/ ]Clinical Pediatrics
( F  g) E3 S7 T8 a8 a* mVolume 46 Number 6+ k4 i$ R, j& n  j: S
July 2007 540-5434 P8 g. M0 }' B: `9 ?2 f  r1 [
© 2007 Sage Publications* T9 {/ y. O) S8 v. q
10.1177/0009922806296651% Y0 z) B2 q# V& [
http://clp.sagepub.com- `/ H& \4 m$ U# p7 r4 V
hosted at
0 m" H3 D! a' P! Y' a6 A( w4 uhttp://online.sagepub.com9 V7 E% [  b. _: X4 z# B5 n
Precocious puberty in boys, central or peripheral,
$ U3 M9 p  s' v7 z" s$ O# lis a significant concern for physicians. Central; u6 `, @7 E9 c* _
precocious puberty (CPP), which is mediated1 B1 `0 [4 e& y, ]; k1 B
through the hypothalamic pituitary gonadal axis, has
& ]( G5 ~  Z# p! Ka higher incidence of organic central nervous system
2 x" Q0 X( k( h. ylesions in boys.1,2 Virilization in boys, as manifested
+ h# I- o" J9 K+ `2 Y4 w: i! A: wby enlargement of the penis, development of pubic- e- f' g- I, P# @8 h" B1 m
hair, and facial acne without enlargement of testi-8 x/ o) \+ k/ z
cles, suggests peripheral or pseudopuberty.1-3 We4 N2 x! ^" ?2 e( @" V4 h: @
report a 16-month-old boy who presented with the
  g" |" C% m- }* o" m6 W6 l/ @# fenlargement of the phallus and pubic hair develop-% k6 \  ?- S  V) p2 d! E+ r: D
ment without testicular enlargement, which was due7 @/ U- R# [+ Q5 q! ~
to the unintentional exposure to androgen gel used by
1 O% _- Z5 e' ]. q- U3 u$ sthe father. The family initially concealed this infor-! M3 i* Y; n) j' G6 C
mation, resulting in an extensive work-up for this
- k" c  R* [7 T, |1 u% }. dchild. Given the widespread and easy availability of
% ~6 g0 W; w4 c- L  [6 G, Etestosterone gel and cream, we believe this is proba-
; g- p- \( [5 N" D) [; a% I6 Q+ k/ Bbly more common than the rare case report in the
% I6 i1 L/ f; x% Y2 z1 lliterature.4
* J) E+ ^6 b: KPatient Report
, q8 B) n6 t: t: ]9 gA 16-month-old white child was referred to the
, I1 Z% a7 ?$ Z. @  Uendocrine clinic by his pediatrician with the concern
+ m$ E0 k+ d" qof early sexual development. His mother noticed
8 X' w2 u6 u6 k  ?/ H# ^light colored pubic hair development when he was
7 I* i: z) v- N& g/ }From the 1Division of Pediatric Endocrinology, 2University of
( p/ U: U/ Z7 H* }; g& YSouth Alabama Medical Center, Mobile, Alabama.
9 A4 D( u; y/ o$ I2 HAddress correspondence to: Samar K. Bhowmick, MD, FACE,
" \# _( G9 J- c( n$ ~Professor of Pediatrics, University of South Alabama, College of. V9 A$ h  O& t, X* {4 e
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;
2 L1 C% t3 w9 {2 Ae-mail: [email protected].% K' d' R2 }0 Q7 q% z
about 6 to 7 months old, which progressively became
' e* P/ c$ [% I$ Q( a( ]) ^darker. She was also concerned about the enlarge-' m+ k  h2 p0 U% @# s! A
ment of his penis and frequent erections. The child
  @! d  Z9 ]! P: [; x% cwas the product of a full-term normal delivery, with8 `% @8 G8 m9 A6 d. a
a birth weight of 7 lb 14 oz, and birth length of
% O9 B3 }6 @6 t& k4 m& s# R20 inches. He was breast-fed throughout the first year0 h6 \/ I0 m: {" X
of life and was still receiving breast milk along with; ]# r/ K- \1 e) T
solid food. He had no hospitalizations or surgery,# ~( s  V/ J1 m
and his psychosocial and psychomotor development
0 j  P# J% a8 f3 A' x. rwas age appropriate.( s* `7 G% ~1 _4 A  Y
The family history was remarkable for the father,* K( [/ z$ z' l2 j2 n4 {
who was diagnosed with hypothyroidism at age 16,
: a1 j) i) H; _' S+ n- ?which was treated with thyroxine. The father’s
' f' J5 ^3 p6 d! vheight was 6 feet, and he went through a somewhat( S0 I/ \7 v0 G! O( E4 W/ f
early puberty and had stopped growing by age 14.
8 A- |3 c6 F: G/ V0 RThe father denied taking any other medication. The& x6 M! N- ]3 F7 [
child’s mother was in good health. Her menarche7 }8 U& u8 N; q8 R
was at 11 years of age, and her height was at 5 feet
! e( b  K8 m/ m5 inches. There was no other family history of pre-
( E! s  R3 x4 c3 `' b+ W+ w3 Xcocious sexual development in the first-degree rela-
7 u3 ^* z% L  ?- y: Stives. There were no siblings.: v- v  `- u7 W4 @, M3 z4 P, L. `0 t
Physical Examination! N3 x7 A9 N/ X
The physical examination revealed a very active,
3 ^5 `1 F$ s/ G7 u" p' J& Bplayful, and healthy boy. The vital signs documented0 k) F8 N4 s  e- w
a blood pressure of 85/50 mm Hg, his length was. P4 Q  {+ U# `1 q
90 cm (>97th percentile), and his weight was 14.4 kg
4 g% \. [! D% n! }' U2 f(also >97th percentile). The observed yearly growth, J& B3 c, M# I- y, G
velocity was 30 cm (12 inches). The examination of: {6 q9 S0 a, V( ~! ]" l$ h0 H
the neck revealed no thyroid enlargement.0 A: G% _2 n9 p4 R8 b. K9 D
The genitourinary examination was remarkable for0 s6 D9 K# q- b6 l6 d  [9 e6 k2 E
enlargement of the penis, with a stretched length of* |# e! P' n$ r  }; O
8 cm and a width of 2 cm. The glans penis was very well
2 D% |" T% K0 y3 Hdeveloped. The pubic hair was Tanner II, mostly around
* ]" ?# e- ]: T1 p( l5409 m, g6 P, }+ W- X  p8 [  f* O  Z* r. x
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from) y6 R$ P1 W/ P3 r2 w& H' c' {
the base of the phallus and was dark and curled. The8 w9 J; ~9 X8 G% _9 C& S( b
testicular volume was prepubertal at 2 mL each.
. o* F9 ?) V+ \, o9 YThe skin was moist and smooth and somewhat- q0 n1 x: u1 H, h. o
oily. No axillary hair was noted. There were no2 \5 W  |0 \8 y  X2 o7 U5 I% B
abnormal skin pigmentations or café-au-lait spots.! y# ^6 z' k& d
Neurologic evaluation showed deep tendon reflex 2+* \0 X7 u, R7 w/ Z2 Y  @8 m( Z5 X
bilateral and symmetrical. There was no suggestion, ?% g2 m6 d8 p
of papilledema.; D; z2 l. n! Y9 a* p1 {
Laboratory Evaluation5 g( L" M3 C7 G( l: e: n# Z# {
The bone age was consistent with 28 months by  e7 R9 `7 ^+ p
using the standard of Greulich and Pyle at a chrono-
" ], e4 }. E, hlogic age of 16 months (advanced).5 Chromosomal
6 q3 g, G! R- J" q% Q" q6 @9 x; Vkaryotype was 46XY. The thyroid function test
+ B9 x- _  ^/ w) }/ ?* ^showed a free T4 of 1.69 ng/dL, and thyroid stimu-
: r( J; f. f% _. K/ r' y. ~lating hormone level was 1.3 µIU/mL (both normal).1 r+ Y0 `% v' B
The concentrations of serum electrolytes, blood
. x' f# l" ]  c$ t% Purea nitrogen, creatinine, and calcium all were
( z5 A+ M5 q/ m+ l3 n# awithin normal range for his age. The concentration" ?; b& y6 Z3 f4 s5 K
of serum 17-hydroxyprogesterone was 16 ng/dL
! \0 e; G: W* c(normal, 3 to 90 ng/dL), androstenedione was 20
! x9 n2 v! g5 ~9 A2 wng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-
3 B) w, J8 ~' q) w- v& d9 [3 Qterone was 38 ng/dL (normal, 50 to 760 ng/dL),% n% W! Y' I3 Q- c- T* G+ ~# M
desoxycorticosterone was 4.3 ng/dL (normal, 7 to
5 p2 A$ ?7 S/ E; S  h& Z) j49ng/dL), 11-desoxycortisol (specific compound S)
$ m& R  D, e3 {; A6 X1 k+ awas 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-4 |4 U! c0 g* _
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total
2 s5 E8 G& U  Ftestosterone was 60 ng/dL (normal <3 to 10 ng/dL),
, ~& d/ y0 ~3 w; m2 }+ m; ?% Iand β-human chorionic gonadotropin was less than& B' g( d4 v! i+ s2 s
5 mIU/mL (normal <5 mIU/mL). Serum follicular
- I+ \9 }0 k4 [$ S) y1 o# L7 |stimulating hormone and leuteinizing hormone: P: ?( S/ n7 o: P
concentrations were less than 0.05 mIU/mL
: A' n1 B1 z( Q5 U( A(prepubertal).. Q8 b5 c; l) M. `  ~. X
The parents were notified about the laboratory
2 M. W& h/ [9 l& K: q% n& ?- z+ nresults and were informed that all of the tests were1 m8 z" k* b0 M8 s( E3 r# S8 x& j
normal except the testosterone level was high. The
7 W* w( k; C) Z, c* j! ?: `9 dfollow-up visit was arranged within a few weeks to
4 u+ x( d( ]% {5 J& t3 L9 `obtain testicular and abdominal sonograms; how-& j! u9 i- M; M( c
ever, the family did not return for 4 months.
$ W- F5 n5 f' {9 w! l/ B! {) O# y. aPhysical examination at this time revealed that the
; m/ g, n, N! l/ Ychild had grown 2.5 cm in 4 months and had gained
# k# n% r% ^( L) X% P( S% O9 N# |' ?9 J3 V2 kg of weight. Physical examination remained
' _* ]( Y- v+ y  t0 v7 x( C. d/ _unchanged. Surprisingly, the pubic hair almost com-
8 v$ v7 e; M3 J& M6 Q* P8 opletely disappeared except for a few vellous hairs at. v0 Z0 Y* B  y3 H
the base of the phallus. Testicular volume was still 2" O. Y) L5 [- a5 u) t: D1 @0 v
mL, and the size of the penis remained unchanged.$ |. C, l* b$ O5 T
The mother also said that the boy was no longer hav-
" u4 A6 p3 ~# y7 K4 c. ~& Ling frequent erections.3 ]8 e1 F2 w0 r% R
Both parents were again questioned about use of
5 w! S$ k3 E, f2 dany ointment/creams that they may have applied to
4 Z' G8 W2 f; D" {! g  Rthe child’s skin. This time the father admitted the
. \# P4 L, f6 ^Topical Testosterone Exposure / Bhowmick et al 541
+ F) f  a8 y% ~. ~8 ruse of testosterone gel twice daily that he was apply-
, h8 D% K! [3 Z) V7 `- v& i9 Bing over his own shoulders, chest, and back area for, h" f. ?1 K/ e, }7 @
a year. The father also revealed he was embarrassed
: \# K  }  u. l  y8 Qto disclose that he was using a testosterone gel pre-
: ?6 A8 m: w. p# V6 sscribed by his family physician for decreased libido% y% ~5 |4 b" V2 f% ~6 h( R
secondary to depression.% J8 M+ B. Q3 v- C
The child slept in the same bed with parents.
( B  N& }$ J! ^! ], L7 {The father would hug the baby and hold him on his
( G& u! x4 z  l! ?' V, i0 A# L, B* dchest for a considerable period of time, causing sig-
; l. K+ u* i, x2 Pnificant bare skin contact between baby and father.
# X1 C5 g" g: i9 F/ FThe father also admitted that after the phone call,: A$ ~, n- D# V' W& L, Q1 k
when he learned the testosterone level in the baby
' n6 Q% X) i( c6 C# Y0 Nwas high, he then read the product information4 \7 q/ K9 U, p  C" l
packet and concluded that it was most likely the rea-
6 C+ [: _+ j' Z  M/ i6 B- K: |son for the child’s virilization. At that time, they- }8 \. e/ J* I4 b* I" X
decided to put the baby in a separate bed, and the) t: d! K4 V" c4 ~" X
father was not hugging him with bare skin and had
' w1 u# d% X+ @& a/ Y- U/ Abeen using protective clothing. A repeat testosterone% x* c% a8 O7 b& E) C- Z: i
test was ordered, but the family did not go to the& D$ L- L& \1 n
laboratory to obtain the test.! H- @3 E3 W1 w/ F  n
Discussion
' {9 s# p& u, HPrecocious puberty in boys is defined as secondary
4 H1 k2 ?9 b- S! e# A( L+ x: Nsexual development before 9 years of age.1,4
& T! ?3 y) }4 r  c1 GPrecocious puberty is termed as central (true) when
* x/ n( d8 x  {! pit is caused by the premature activation of hypo-" w2 x! V, }8 I; \; W
thalamic pituitary gonadal axis. CPP is more com-
* E- j$ @  b, g8 P# F  R: B& mmon in girls than in boys.1,3 Most boys with CPP5 Y: b, ]1 M3 s. T5 l
may have a central nervous system lesion that is
: _1 K* d. }+ P4 H( Z9 u7 b1 Iresponsible for the early activation of the hypothal-
+ `& ^  R8 D% Xamic pituitary gonadal axis.1-3 Thus, greater empha-
1 c7 Z' y- Y8 rsis has been given to neuroradiologic imaging in- ^$ A) a6 l, [/ r- q, C0 j
boys with precocious puberty. In addition to viril-' J, r8 e; N% \5 S
ization, the clinical hallmark of CPP is the symmet-
9 H9 U, f6 i9 o$ @rical testicular growth secondary to stimulation by2 r6 j& ~4 D4 r- v5 L7 g
gonadotropins.1,3
8 v8 U: B2 M- Y. wGonadotropin-independent peripheral preco-
, D, f, j1 h. U& Zcious puberty in boys also results from inappropriate
# b# X! C- Q/ s. T; @9 g. G# zandrogenic stimulation from either endogenous or
# P  U' `, D' ?exogenous sources, nonpituitary gonadotropin stim-
  z2 O: W% C( H; G5 p9 L2 c7 Yulation, and rare activating mutations.3 Virilizing( x* g( H1 ?1 A4 h
congenital adrenal hyperplasia producing excessive
; d, X, N) N8 w% _  p+ ~adrenal androgens is a common cause of precocious' @3 W- c9 P& N( l5 A: C' d! c' g
puberty in boys.3,4
% L, q0 ]9 [: U* qThe most common form of congenital adrenal; R" U( V# q3 h7 y; s0 B, ^# n
hyperplasia is the 21-hydroxylase enzyme deficiency.8 r$ Z9 Y8 R# u! Y, O& X- l
The 11-β hydroxylase deficiency may also result in
0 ~! {" T  }" j  {/ xexcessive adrenal androgen production, and rarely,3 {0 O! b6 t5 }6 w3 p" W; G
an adrenal tumor may also cause adrenal androgen  j3 |5 k8 g1 M$ L5 o! d( I; s/ V
excess.1,3' Q$ T" ~# A' G( G$ ~
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from/ d; y  I# l* ]0 @$ N& L8 @5 U
542 Clinical Pediatrics / Vol. 46, No. 6, July 2007
  b8 @& I  e6 o' `: J! I# hA unique entity of male-limited gonadotropin-
0 ]5 n" m% p) P, m3 pindependent precocious puberty, which is also known
& X2 K9 I# b9 l% O1 }, qas testotoxicosis, may cause precocious puberty at a
5 w+ g& e3 r) ~& ~" G: W$ lvery young age. The physical findings in these boys
; n  P' A4 u  z: x* ^' Zwith this disorder are full pubertal development,0 w' W$ E, ]+ b2 {6 c: C8 z  X
including bilateral testicular growth, similar to boys
3 W* Q. A1 A/ G5 l5 ?3 n/ g8 @. mwith CPP. The gonadotropin levels in this disorder& E2 M# \) _( J6 z. u! Z: V
are suppressed to prepubertal levels and do not show: _' |; B1 [1 ]- f/ a$ J7 L7 N
pubertal response of gonadotropin after gonadotropin-9 E. j) A% v& p8 N9 |
releasing hormone stimulation. This is a sex-linked0 Y' F0 g1 Y* b" m6 d
autosomal dominant disorder that affects only2 c: R8 G* \  b' q
males; therefore, other male members of the family
$ v5 [/ z. K! x. f- V1 B; Xmay have similar precocious puberty.3
- }4 S6 v- Z1 u% ]3 w7 qIn our patient, physical examination was incon-
9 x) l. e+ o2 y( ~. Xsistent with true precocious puberty since his testi-: ~" s% G- j- k( P( Q2 `
cles were prepubertal in size. However, testotoxicosis; v- P; y4 w7 b2 Q2 t' }; c
was in the differential diagnosis because his father
/ S8 F9 j4 O$ Istarted puberty somewhat early, and occasionally,3 g' Q2 h( p4 V4 h0 S( u  \2 b9 N
testicular enlargement is not that evident in the
7 j3 b4 x# r$ l+ N, K/ lbeginning of this process.1 In the absence of a neg-1 r/ \* C# K  F$ {* u
ative initial history of androgen exposure, our
3 Y$ U  T4 n! T, x4 G% x, r, qbiggest concern was virilizing adrenal hyperplasia,5 e, O; e% E& {3 K1 w
either 21-hydroxylase deficiency or 11-β hydroxylase
0 I$ I& t1 E* [5 Ldeficiency. Those diagnoses were excluded by find-
) R3 r3 n6 M% Z5 B( Z1 ming the normal level of adrenal steroids.8 c/ \% H6 u2 S/ t0 {2 U* r
The diagnosis of exogenous androgens was strongly0 u. O) j+ T8 ~1 z# ^+ f
suspected in a follow-up visit after 4 months because- _. j) |4 a( K1 ]) \
the physical examination revealed the complete disap-  `' e- @" S! r1 {# k
pearance of pubic hair, normal growth velocity, and
3 i# \7 n5 G/ K2 Bdecreased erections. The father admitted using a testos-) b5 F7 `" w7 m: \0 m
terone gel, which he concealed at first visit. He was
5 x; W+ j: X5 S% P& ?0 m; wusing it rather frequently, twice a day. The Physicians’
9 c( t1 r, Q1 l+ ~2 `- vDesk Reference, or package insert of this product, gel or
' C5 p3 W  z$ o2 N' o7 h& `cream, cautions about dermal testosterone transfer to
8 G( I3 k2 ?, ^unprotected females through direct skin exposure.% S& S( W$ R7 G
Serum testosterone level was found to be 2 times the( x1 i( K2 {: J; E5 M& }4 z
baseline value in those females who were exposed to# {3 S& C+ V$ [% a0 a0 j
even 15 minutes of direct skin contact with their male8 S0 I3 s) [& z& i* J
partners.6 However, when a shirt covered the applica-* \( X2 P+ V& g' w" P: S# e
tion site, this testosterone transfer was prevented.
2 A$ u- E9 L) `  @+ Q  {- t: \) mOur patient’s testosterone level was 60 ng/mL,4 A& S. ~& |% o: Q7 j: q
which was clearly high. Some studies suggest that
* o6 }: ~8 n' Y! @' edermal conversion of testosterone to dihydrotestos-+ [$ g& Z# |6 T7 _0 @( m- W
terone, which is a more potent metabolite, is more" u1 Z* _$ U0 I6 I
active in young children exposed to testosterone
+ y( u6 B7 C! aexogenously7; however, we did not measure a dihy-5 V/ Q1 w4 |3 l& D1 P) W0 ]- `9 A
drotestosterone level in our patient. In addition to
# g9 P% |' e9 c  L* fvirilization, exposure to exogenous testosterone in
, i7 j7 |' i: qchildren results in an increase in growth velocity and
' g5 \1 i% n* Z5 F. U9 R* fadvanced bone age, as seen in our patient.
0 S: ?& M  B! r( Z3 QThe long-term effect of androgen exposure during
6 `, Q8 l# U; ^" ~; L# W7 K6 nearly childhood on pubertal development and final2 u: K7 k0 t7 K6 n1 z
adult height are not fully known and always remain* N: y* K. U7 d6 C& p
a concern. Children treated with short-term testos-
8 U8 k  y2 y$ I$ fterone injection or topical androgen may exhibit some) K: Y! W- c8 ?& i6 @
acceleration of the skeletal maturation; however, after
! X0 N" }% _$ ]8 B7 wcessation of treatment, the rate of bone maturation0 [' v/ \/ C: W4 ^' u
decelerates and gradually returns to normal.8,9
2 q6 b7 s. Q7 G! n1 GThere are conflicting reports and controversy4 j/ n1 Q7 e" H3 R: c
over the effect of early androgen exposure on adult6 U* p! C4 {6 |6 q
penile length.10,11 Some reports suggest subnormal8 z  V9 |! |5 g. c% l" ^
adult penile length, apparently because of downreg-7 h- e% D8 @$ o+ F# z8 G) Q, K
ulation of androgen receptor number.10,12 However,% b1 j* k' v& L& Y
Sutherland et al13 did not find a correlation between# b1 ~' r" B1 L; z0 E( M2 D
childhood testosterone exposure and reduced adult- O8 m( R2 [2 ?
penile length in clinical studies.
+ P$ k3 }5 k+ ~+ l: y0 q9 Z  mNonetheless, we do not believe our patient is
' Z- Z0 {' P+ }going to experience any of the untoward effects from3 J# Z5 T! F; W$ S. {7 L' {  k
testosterone exposure as mentioned earlier because, s( {9 m4 L0 q4 [" @& f* b1 e3 S
the exposure was not for a prolonged period of time.9 N" g+ V- E* e/ j- A
Although the bone age was advanced at the time of" Y: F  K, A  c' v5 o
diagnosis, the child had a normal growth velocity at* z$ k, q1 |8 _! U9 t
the follow-up visit. It is hoped that his final adult0 C$ G. _! Q/ K* `5 G  p
height will not be affected.
) J* T5 T  P" t3 w6 L0 q% LAlthough rarely reported, the widespread avail-
" t. s- a% m$ |ability of androgen products in our society may2 J1 \& s( A6 c7 |
indeed cause more virilization in male or female3 G8 G* }' p; I# ^  T/ M8 e% e( F
children than one would realize. Exposure to andro-
* ~' J/ }# g; D6 r' \/ lgen products must be considered and specific ques-
& c" R' |7 I) ~/ p/ {3 C  V# Btioning about the use of a testosterone product or
& E7 [( [: D( _gel should be asked of the family members during2 |( U4 d' _; ~+ n8 Y
the evaluation of any children who present with vir-& B( e( e4 ~! E( I& S
ilization or peripheral precocious puberty. The diag-
2 @, d& U, X2 t8 M/ snosis can be established by just a few tests and by  I7 l* g7 M/ W  X- |, z
appropriate history. The inability to obtain such a8 p+ Y# R  a: Q6 j% e7 g4 m
history, or failure to ask the specific questions, may: v2 X1 ~% ?$ O2 _# O+ f! H
result in extensive, unnecessary, and expensive
0 [* m- o) q6 c- tinvestigation. The primary care physician should be5 r- f7 V# j' w, ]* n2 f4 J
aware of this fact, because most of these children
8 d6 F( B0 I- N9 V6 f  Pmay initially present in their practice. The Physicians’% u6 @, [7 a3 M. [7 s1 e
Desk Reference and package insert should also put a
3 Y' Z1 ?3 O- J/ bwarning about the virilizing effect on a male or
3 q* }; d, I, F6 w. f& z# R! r( Rfemale child who might come in contact with some-- x* A8 m/ U, n) P3 s( f
one using any of these products.$ l% q$ `" V  R6 h  t
References6 _5 G) Z1 I) b, I9 D
1. Styne DM. The testes: disorder of sexual differentiation
/ ^4 e  C3 V; O, j  ?) A( eand puberty in the male. In: Sperling MA, ed. Pediatric
' A$ Y' L* D; qEndocrinology. 2nd ed. Philadelphia, PA: WB Saunders;& W! o4 S  _  M0 p1 I
2002: 565-628.1 j# {+ |6 f- u$ s# K2 y" u
2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious4 R6 A( T* F/ X; O4 d% E; G
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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8 h* [6 j2 L1 W" ^" e! b/ x
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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!
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