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Sexual Precocity in a 16-Month-Old
, k6 B% R6 ~# h# Z' FBoy Induced by Indirect Topical( d" e6 s/ G& }: s5 J4 r
Exposure to Testosterone4 t- C1 h0 B6 V) z3 e3 p% e
Samar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,2
. J/ k9 x! R/ |1 f# j7 c2 u" mand Kenneth R. Rettig, MD1: w# F- O# P$ ~
Clinical Pediatrics8 `% e) Y7 t) h1 z' a. a
Volume 46 Number 6# \. h& _! a, x* U3 |8 R* y
July 2007 540-543- u, U1 Y9 |8 A
© 2007 Sage Publications
: S8 R9 N5 {  Q10.1177/0009922806296651
) D6 X0 x$ q: G& \, `, uhttp://clp.sagepub.com
, b3 Q+ D* A+ ^hosted at* j/ ^) [" f8 Q9 I  c
http://online.sagepub.com0 D$ J' k2 m6 X9 J; w1 |
Precocious puberty in boys, central or peripheral,
8 W$ q$ w8 z4 g& |( {9 |is a significant concern for physicians. Central& J3 Z9 F. ^9 a) w5 W0 f* E
precocious puberty (CPP), which is mediated
; Z5 {6 a  v) [8 @through the hypothalamic pituitary gonadal axis, has/ K& [' P# T5 ?2 E9 ?* m
a higher incidence of organic central nervous system( ]: |5 a4 N7 f0 _8 D2 y
lesions in boys.1,2 Virilization in boys, as manifested
) t: z! X' s1 ~! V/ A! Y& W6 Aby enlargement of the penis, development of pubic! t' d, G9 R, E. A2 c& \6 h
hair, and facial acne without enlargement of testi-
! r* Y0 z' \7 L. Z/ v' y+ _% Qcles, suggests peripheral or pseudopuberty.1-3 We
4 D: t9 W! y' F9 treport a 16-month-old boy who presented with the5 x+ i0 S" ~5 z* _- Q$ w  g0 s2 ]( g9 ?
enlargement of the phallus and pubic hair develop-2 ?  K9 N2 L" @' P+ P8 {) o8 D+ G
ment without testicular enlargement, which was due
) K5 b% Z, J4 tto the unintentional exposure to androgen gel used by
7 D3 i4 y  S: B( ^" e, Q# |& Xthe father. The family initially concealed this infor-; [; K# ^/ X+ c: @) O7 t( R. t
mation, resulting in an extensive work-up for this' m! U; l- g, [% X# e7 Y  [
child. Given the widespread and easy availability of9 m: Q& D6 }" o. g# q7 K6 [
testosterone gel and cream, we believe this is proba-
6 m3 d6 N' {& F* }. }1 U& {. @bly more common than the rare case report in the
/ a# a1 h+ d$ E& I, o  Pliterature.49 Y6 ]& g! }% v% `
Patient Report* ~8 {! U1 J* [0 ], q6 k0 I  S6 r
A 16-month-old white child was referred to the) k3 E; Z# b8 r2 q9 ^; _4 M" d$ S
endocrine clinic by his pediatrician with the concern% S6 o/ d/ B; C3 C. a) B
of early sexual development. His mother noticed( D; t6 F+ \0 ]: M  X9 i3 u' @
light colored pubic hair development when he was! B- n2 K9 t2 b8 F8 o5 m* i
From the 1Division of Pediatric Endocrinology, 2University of. \1 x8 s6 F& E
South Alabama Medical Center, Mobile, Alabama.) B3 T; G3 D; @% Q  M6 K
Address correspondence to: Samar K. Bhowmick, MD, FACE,
7 f$ R: c. h7 O8 e! U" X' uProfessor of Pediatrics, University of South Alabama, College of8 U2 U. _1 j: z3 r$ `
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;6 v' s; c# r# Z+ [' V2 H1 I3 d
e-mail: [email protected].
: n/ |: Y7 s7 w& p3 i5 |* o8 O/ ?about 6 to 7 months old, which progressively became+ X' T& K: M7 I7 i9 ~
darker. She was also concerned about the enlarge-
, g( O" e8 n3 N1 O9 f% L% Pment of his penis and frequent erections. The child
  g& L5 q% T, |* w$ u* V" h- y" {! |  vwas the product of a full-term normal delivery, with
" e- U0 f+ }5 P# @- \a birth weight of 7 lb 14 oz, and birth length of2 n6 N$ z3 _0 s1 o
20 inches. He was breast-fed throughout the first year
) z. q! |/ \8 `! a/ ]- F% Z; qof life and was still receiving breast milk along with
; }+ a  t  V# w3 Nsolid food. He had no hospitalizations or surgery,3 @( G) F0 b6 u( X1 b. P: x5 ?0 g9 l
and his psychosocial and psychomotor development
7 n- e" m  P/ o. j2 zwas age appropriate.+ b2 x2 `5 |3 J( I: x
The family history was remarkable for the father,
7 c$ _6 _- c/ s) T/ I* k. ^who was diagnosed with hypothyroidism at age 16,- C& ]5 _. h0 X3 Q8 w  E' A
which was treated with thyroxine. The father’s
! V% D+ y/ r: P2 C* O! m  r5 Eheight was 6 feet, and he went through a somewhat
" W  S2 d' ?% g, I8 o. O5 H! Hearly puberty and had stopped growing by age 14.
; [  D! Z( J# wThe father denied taking any other medication. The
" O7 U+ t' N/ Q! u3 K* v' ~! b) a3 Ochild’s mother was in good health. Her menarche
6 j; h, D5 i! [9 _+ ewas at 11 years of age, and her height was at 5 feet
7 y: w4 l+ m8 R; r: a4 h2 c; H5 inches. There was no other family history of pre-5 c7 }; R  ]6 W9 Z
cocious sexual development in the first-degree rela-9 f( T  @  ^3 {* G2 q. P: T
tives. There were no siblings.& i0 i* I2 o4 c7 b8 l9 _
Physical Examination
& g7 E9 ]6 V$ y) i- O- c0 I  w* D& XThe physical examination revealed a very active,
# h4 d1 D$ o# b  a- rplayful, and healthy boy. The vital signs documented
1 L4 S+ |' S! t7 b* [8 ga blood pressure of 85/50 mm Hg, his length was
* y& ~7 T8 j1 V5 `90 cm (>97th percentile), and his weight was 14.4 kg
; _1 B. j2 q9 |" I$ |6 S- `(also >97th percentile). The observed yearly growth
7 Y$ p: H/ O/ W* rvelocity was 30 cm (12 inches). The examination of
/ f# q, [7 q  M" c7 ?the neck revealed no thyroid enlargement.% D+ }' F- U5 g; K, U
The genitourinary examination was remarkable for
# |5 y, B  ~) A1 M7 Jenlargement of the penis, with a stretched length of
, ^6 y" ?/ b6 F) v- v$ W( B: a8 cm and a width of 2 cm. The glans penis was very well4 r: n7 ^" `0 O! ]/ T7 s8 E, W# w! M
developed. The pubic hair was Tanner II, mostly around
4 _% _4 J2 L7 D5 t0 y8 K5401 }6 E& o5 Z5 v
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from. F& W. z+ i1 C6 p& w0 g
the base of the phallus and was dark and curled. The" K5 E9 F7 r/ h
testicular volume was prepubertal at 2 mL each.) h# l1 G! r" F
The skin was moist and smooth and somewhat
7 f. P1 H4 d% h- @0 T! Hoily. No axillary hair was noted. There were no
: D0 w8 C- B  C- O5 P/ pabnormal skin pigmentations or café-au-lait spots.! f+ i! T8 M: c! N5 T/ x1 O5 _
Neurologic evaluation showed deep tendon reflex 2+
7 H, t! l; m/ U! L* W1 Wbilateral and symmetrical. There was no suggestion
  b& y& M" y" nof papilledema.
* p+ d  h+ L  K2 NLaboratory Evaluation# t+ f4 @2 G0 C. V/ m  G
The bone age was consistent with 28 months by
) N4 G6 s3 A9 W7 uusing the standard of Greulich and Pyle at a chrono-9 d" A  \7 i2 x8 c6 p
logic age of 16 months (advanced).5 Chromosomal
4 R3 O9 X' B2 A4 |5 Dkaryotype was 46XY. The thyroid function test& S" Z8 S3 j4 n  y' i3 A
showed a free T4 of 1.69 ng/dL, and thyroid stimu-
1 p$ a# P7 w' K% qlating hormone level was 1.3 µIU/mL (both normal).4 s' l- P- l7 w$ O4 v& G
The concentrations of serum electrolytes, blood
# W5 m& d/ ^% ~9 O( R* K7 _* yurea nitrogen, creatinine, and calcium all were
; l( `  Q+ W: Y. [# k$ Iwithin normal range for his age. The concentration
1 ~9 b, b+ @* d. T9 Bof serum 17-hydroxyprogesterone was 16 ng/dL2 ~- `, n8 @6 U( _* d
(normal, 3 to 90 ng/dL), androstenedione was 208 {& W% Y/ @3 P+ I1 ?' O2 w
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-& ]0 _; W6 Y! [. W9 G
terone was 38 ng/dL (normal, 50 to 760 ng/dL),
5 A5 m+ I$ B7 Gdesoxycorticosterone was 4.3 ng/dL (normal, 7 to
6 X# Q3 e( v( G; |4 P49ng/dL), 11-desoxycortisol (specific compound S)) \0 u" s" b7 r. N
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-" K0 j: |0 }% _+ J7 [: t. _
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total
3 v5 @' i4 [3 b4 O) s% ptestosterone was 60 ng/dL (normal <3 to 10 ng/dL),
6 E% D/ G# @. i4 X( o' b! Pand β-human chorionic gonadotropin was less than
( r1 S: A5 T3 t1 P% ]. @0 \5 mIU/mL (normal <5 mIU/mL). Serum follicular3 R: |& L7 B. K# a8 K8 L  {; [
stimulating hormone and leuteinizing hormone; m  B& o) g5 d6 u/ f
concentrations were less than 0.05 mIU/mL* f0 V4 m- i2 i& ^- m
(prepubertal).
9 v- V* q' w. s9 L1 wThe parents were notified about the laboratory
% r1 q0 _7 g& D% X1 u) xresults and were informed that all of the tests were! Z, ^/ F4 G7 y: y9 q0 s! \
normal except the testosterone level was high. The
% N  e+ `; t+ q  Q0 _follow-up visit was arranged within a few weeks to
& a3 I& N) U9 r7 Pobtain testicular and abdominal sonograms; how-
# k: P5 @8 x& [5 s. Rever, the family did not return for 4 months.1 O3 u" H* X& m, }4 B$ z# m
Physical examination at this time revealed that the; u$ I: c0 t$ o
child had grown 2.5 cm in 4 months and had gained& r, q! d) Q6 _3 M% V# M) G
2 kg of weight. Physical examination remained$ b% h2 E" ?7 J" q
unchanged. Surprisingly, the pubic hair almost com-
  }* l. o+ R( U- d) qpletely disappeared except for a few vellous hairs at
6 c% v' i3 P5 }: Zthe base of the phallus. Testicular volume was still 2
% l+ q2 N6 k$ ]8 j; N3 [3 CmL, and the size of the penis remained unchanged.
# U% q. m7 D0 `' m2 wThe mother also said that the boy was no longer hav-
. x  {! s/ [0 M) W" l6 Ging frequent erections.
" Z9 B/ B* z( U  e' u) I8 P/ ]8 iBoth parents were again questioned about use of. \7 q+ y& V. B
any ointment/creams that they may have applied to
7 B+ K/ ^! l) Y7 T8 z7 m/ qthe child’s skin. This time the father admitted the
: H! t( F/ x( J7 w" J" x3 ETopical Testosterone Exposure / Bhowmick et al 541
4 z% y9 K. n+ H' @; O0 F1 v. Yuse of testosterone gel twice daily that he was apply-
# O" m& @9 T2 `' R8 eing over his own shoulders, chest, and back area for1 m' X! K* w2 q7 C& I3 X
a year. The father also revealed he was embarrassed
# s- x- ^* Y4 b9 w$ Dto disclose that he was using a testosterone gel pre-. \+ j6 N0 H) M. ~/ U# B, h
scribed by his family physician for decreased libido
/ a$ h$ K: g7 s( q) p/ }secondary to depression.* c# R5 A5 q+ y3 ~9 i
The child slept in the same bed with parents.
6 t/ D, d, G) ~, ~1 N) w8 a5 HThe father would hug the baby and hold him on his  G2 ?, w. x1 E' r
chest for a considerable period of time, causing sig-- \. L1 v6 ?% r+ Q) X
nificant bare skin contact between baby and father., h8 }2 k5 b; p* }
The father also admitted that after the phone call,8 @4 D* O6 C0 K) Y; Y4 C
when he learned the testosterone level in the baby
3 F$ E! L; a- H4 z4 G7 V! h4 [was high, he then read the product information9 w1 Z, f# [) I+ {
packet and concluded that it was most likely the rea-# z$ Y1 ]6 J9 Y% `$ `, i! f
son for the child’s virilization. At that time, they
& D% g% u6 ]  p  }6 U( vdecided to put the baby in a separate bed, and the
$ ~8 a& e3 G( i0 w; P; i! E( Zfather was not hugging him with bare skin and had
7 T2 W! a5 k0 s. Bbeen using protective clothing. A repeat testosterone, T4 N4 z9 J4 c0 P; l6 `$ \
test was ordered, but the family did not go to the0 h  Q9 D0 d6 @7 J) N9 Y5 }
laboratory to obtain the test.
+ c/ I$ J0 r: I% g2 G/ u& {. T- f( PDiscussion
$ i( y' i8 N" O" gPrecocious puberty in boys is defined as secondary
/ ]' _# m' Y2 Y5 K4 {, ^sexual development before 9 years of age.1,4, q* }0 [, k) @- `3 p
Precocious puberty is termed as central (true) when
+ t4 |, N; v5 \: h/ X# rit is caused by the premature activation of hypo-4 _. J( L' P, A4 U. t
thalamic pituitary gonadal axis. CPP is more com-& c, A" Z* J  V
mon in girls than in boys.1,3 Most boys with CPP
2 l4 ^$ L; J: ?9 x# B# tmay have a central nervous system lesion that is- ?2 k8 o- H; i  J
responsible for the early activation of the hypothal-& g( m/ {" j% _4 a! T7 ]# F$ W! I
amic pituitary gonadal axis.1-3 Thus, greater empha-7 M5 h3 @, D7 w' B$ i. u5 r2 R
sis has been given to neuroradiologic imaging in
+ {& L; u& b8 l& [/ {6 k4 {& ~& L- _boys with precocious puberty. In addition to viril-
+ e. i# f( N4 G* n$ S" n+ zization, the clinical hallmark of CPP is the symmet-
% k. D9 Y* G+ o4 S5 x9 ~rical testicular growth secondary to stimulation by
: T2 j  `& @4 t  Y/ b" U7 E3 w4 Z2 @gonadotropins.1,3" b4 @% g5 }. D( q1 W
Gonadotropin-independent peripheral preco-
( K. _; K7 B2 e  Z; e# [! u# qcious puberty in boys also results from inappropriate
* k( _5 [: k" ^/ m$ x% Eandrogenic stimulation from either endogenous or$ p- d1 A: e- W
exogenous sources, nonpituitary gonadotropin stim-$ Q, y* G3 G3 L. K
ulation, and rare activating mutations.3 Virilizing
/ M' \) H& b3 A" j6 |congenital adrenal hyperplasia producing excessive. X; o0 V; F; `3 S' p
adrenal androgens is a common cause of precocious
' W* `$ P5 G$ ?5 {5 T) Epuberty in boys.3,4
) M' f; X3 G" f/ mThe most common form of congenital adrenal6 f9 P% b3 L3 @) S6 Z" \/ P( W
hyperplasia is the 21-hydroxylase enzyme deficiency.$ ]5 k4 f5 I% S7 O) U7 Z9 I
The 11-β hydroxylase deficiency may also result in% D, ^# J9 `, A, i
excessive adrenal androgen production, and rarely,
( y2 {  ]1 G: |. I- @, E% B! G# jan adrenal tumor may also cause adrenal androgen
2 G4 D9 W) j: Eexcess.1,3
1 A1 w- u  D( x) l1 Yat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
$ q2 s7 F, g1 }  d% h0 F2 T542 Clinical Pediatrics / Vol. 46, No. 6, July 20074 p3 ?5 s# u3 C6 q7 `+ l5 d! Q
A unique entity of male-limited gonadotropin-) F" U+ P8 T6 H# [; s# U) g: c% K5 d
independent precocious puberty, which is also known; D- M( j' S4 U0 L/ Y" f; e; G: p
as testotoxicosis, may cause precocious puberty at a" n" h/ s$ P; r9 N2 `. E" ~
very young age. The physical findings in these boys
( Z% Q: R5 Q9 V' Dwith this disorder are full pubertal development,
2 g9 d  x. ^$ a# A; }$ F& t5 wincluding bilateral testicular growth, similar to boys
1 u7 T; Y2 u( k  V6 k0 owith CPP. The gonadotropin levels in this disorder
- K- v# }8 s5 [! ?are suppressed to prepubertal levels and do not show1 a- x2 ^7 y6 ~! f, T2 b1 q  @; y
pubertal response of gonadotropin after gonadotropin-$ K6 s" I0 J0 T! r' ^+ t3 L
releasing hormone stimulation. This is a sex-linked
+ ?/ F" n$ q; J3 Vautosomal dominant disorder that affects only: s$ J: R( q! f" O" y
males; therefore, other male members of the family
! f( P5 G- Z( h; |8 Mmay have similar precocious puberty.38 h: q; F  i) N* P, l6 r5 P5 Y1 t
In our patient, physical examination was incon-
8 K$ K' o3 d$ F) c, h7 v( ksistent with true precocious puberty since his testi-
# c0 ^2 l9 v5 Y! H" Lcles were prepubertal in size. However, testotoxicosis
% A% ]/ M7 o4 p7 K" ^) e) |was in the differential diagnosis because his father) J0 u5 W' L+ W; _
started puberty somewhat early, and occasionally,
" F' b: F1 p/ r: C3 }/ u4 l' k3 M: Utesticular enlargement is not that evident in the
0 L  w( \% y) ybeginning of this process.1 In the absence of a neg-
  R- Z+ u& N* ?" r7 X8 l+ l( cative initial history of androgen exposure, our
3 H; a5 ]& U( ?) w7 y; gbiggest concern was virilizing adrenal hyperplasia,6 w/ c- V" j. V& }2 d, q9 M: U" M
either 21-hydroxylase deficiency or 11-β hydroxylase+ s9 [# H9 j2 Q1 y$ v3 j
deficiency. Those diagnoses were excluded by find-2 ^) y4 k- |+ \! ~* s! E. O3 w
ing the normal level of adrenal steroids.
# O) y1 Q7 ]* Y- ^The diagnosis of exogenous androgens was strongly
2 w) W) o$ h, P+ j- j: a) G, nsuspected in a follow-up visit after 4 months because8 P. a' d5 z" W. r5 \
the physical examination revealed the complete disap-
0 v/ P0 |; }9 `6 f) V- gpearance of pubic hair, normal growth velocity, and
+ U% o% m4 f6 ]decreased erections. The father admitted using a testos-
, V" b& f& h0 E7 q) q- U! v* zterone gel, which he concealed at first visit. He was) d+ J5 e$ C- B
using it rather frequently, twice a day. The Physicians’
2 v0 z2 J9 j* m- M' I6 cDesk Reference, or package insert of this product, gel or9 r1 K  u; {3 F6 o, }9 q
cream, cautions about dermal testosterone transfer to( I1 i. B9 _# p  t" U9 y4 c
unprotected females through direct skin exposure.
+ p6 b# D! _! p* _7 s) N  y# N. z7 nSerum testosterone level was found to be 2 times the
, K" t" k, O' Y. I* s) |baseline value in those females who were exposed to+ T$ C, V6 {) y1 [
even 15 minutes of direct skin contact with their male/ g+ Z9 Q& e' N: y
partners.6 However, when a shirt covered the applica-
& E9 L* F7 X; P: m' Rtion site, this testosterone transfer was prevented.: p' X; ~! u0 ~" N- A0 [
Our patient’s testosterone level was 60 ng/mL,
6 c5 V" s7 [) [# Vwhich was clearly high. Some studies suggest that+ ]* v9 o( P5 O0 M  r  R
dermal conversion of testosterone to dihydrotestos-
; l4 \1 h9 h9 A+ s2 ]% U5 z) S9 jterone, which is a more potent metabolite, is more
( V1 \% @' E/ V5 X9 a; ?active in young children exposed to testosterone
8 |* N* U7 `  ^' J, H2 Sexogenously7; however, we did not measure a dihy-
# L+ v# M6 a" D) R  [5 x- ddrotestosterone level in our patient. In addition to6 w: A4 t; L/ T* Z6 f
virilization, exposure to exogenous testosterone in
) G: E" v( @5 M! K' j$ }" |children results in an increase in growth velocity and: Z1 f# m8 h2 |& ~# D
advanced bone age, as seen in our patient.7 W1 |$ L* S  x. P
The long-term effect of androgen exposure during
' E/ ~5 j" H% `early childhood on pubertal development and final& n2 V0 O  ], S8 J2 y+ n; @
adult height are not fully known and always remain2 j- e3 E4 E: Q$ d
a concern. Children treated with short-term testos-
6 J( \( F3 h6 O% ?& I5 eterone injection or topical androgen may exhibit some$ f2 L- @6 q/ J; G7 D
acceleration of the skeletal maturation; however, after
0 D; }/ p3 \/ }cessation of treatment, the rate of bone maturation
5 G# w6 x, h$ Jdecelerates and gradually returns to normal.8,96 }8 d; u8 I3 p( E7 c
There are conflicting reports and controversy$ d4 Q) Y$ C1 O  G
over the effect of early androgen exposure on adult. p' ?2 o; Y+ j9 p
penile length.10,11 Some reports suggest subnormal+ [7 }# R6 p9 ^1 O) a$ o
adult penile length, apparently because of downreg-7 z  {( y! t) D# F$ \& k" _
ulation of androgen receptor number.10,12 However,
) |8 O7 ?, c  W; `, G+ `+ DSutherland et al13 did not find a correlation between
# E2 f& O4 A6 n4 @% `% _childhood testosterone exposure and reduced adult4 y4 u9 E! X7 D# |( U/ N
penile length in clinical studies.: ~4 d7 L8 l/ B
Nonetheless, we do not believe our patient is5 g  f- P' u% c2 ^& C
going to experience any of the untoward effects from8 P* {/ z5 R- ^& S
testosterone exposure as mentioned earlier because" s" _% R* @' g+ ~- }5 X0 c
the exposure was not for a prolonged period of time.& G/ u/ `! G! `/ J3 g( l" Y
Although the bone age was advanced at the time of
  q4 M& R! ^" i# D7 x% Adiagnosis, the child had a normal growth velocity at
, l1 F- y, y( Z1 V# r9 b; D  Tthe follow-up visit. It is hoped that his final adult2 ~; G; q9 N/ G) }. l9 Y
height will not be affected.4 H$ V5 `3 C$ }. d* q0 ~
Although rarely reported, the widespread avail-/ T7 H0 @$ Q7 A5 ]; v8 @) b
ability of androgen products in our society may0 \( e5 X2 I6 m# w: r2 b; [
indeed cause more virilization in male or female
( Q- ]/ {" L4 g& A' O% R2 Jchildren than one would realize. Exposure to andro-5 g  J, u6 O$ Z! H1 R. O3 Q# b5 n
gen products must be considered and specific ques-
+ U. b1 z# E, ^! i1 ?  htioning about the use of a testosterone product or
& u2 q* p0 ^+ ^' p) ^% S* Q0 P. Ogel should be asked of the family members during4 |* T' k) c5 X: O7 s
the evaluation of any children who present with vir-) F$ W; _0 _2 i
ilization or peripheral precocious puberty. The diag-
9 {( z3 Z9 o! n/ X; m2 [$ Onosis can be established by just a few tests and by0 c, R+ h# N0 \& I8 _$ A' O
appropriate history. The inability to obtain such a3 t6 o% H0 a8 Y; W  p
history, or failure to ask the specific questions, may
% V9 \" @0 v5 w2 m$ ~) dresult in extensive, unnecessary, and expensive" t; A* q* s& Q* j% a0 X1 Y: y" {3 W' H
investigation. The primary care physician should be
" V/ l+ A# m* m6 }; k4 Xaware of this fact, because most of these children3 l; c5 {( D0 I% R
may initially present in their practice. The Physicians’) [% K9 A; ?# f. E
Desk Reference and package insert should also put a) ~* c+ h/ w  }3 V4 C
warning about the virilizing effect on a male or
1 p: V) L/ \. kfemale child who might come in contact with some-* H5 {; q- I8 {1 A5 N. p+ t$ }% e
one using any of these products.
! D  J; s. B- y6 S3 g' T2 \3 LReferences# l: k, s! p0 p3 [
1. Styne DM. The testes: disorder of sexual differentiation0 @: c+ @6 X8 O' _+ B
and puberty in the male. In: Sperling MA, ed. Pediatric
' e" D& v; c$ fEndocrinology. 2nd ed. Philadelphia, PA: WB Saunders;
2 C& ^! O/ [) @; Y+ b7 C2 I2002: 565-628.
. e4 d* g+ [) O2 ^2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious
$ R- s% V1 Z% V! e  Q- G5 Qpuberty 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 u) l6 t2 I. v. T* [4 X' V
Boy Induced by Indirect Topical% H2 `4 c+ X& s, u# e
Exposure to Testosterone' x' T: F0 [% ?: x: X0 A# a. g
Samar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,2
) J4 D+ [' G% W& ?1 A# kand Kenneth R. Rettig, MD1
$ \% K, h9 l) ?4 ~8 R* c1 J$ mClinical Pediatrics
( f, w5 _: ^& t: o- ^1 V: D* @8 \% ZVolume 46 Number 6
5 `- z2 Q4 N# r, B2 NJuly 2007 540-543
, d5 Q- L) q) B8 ?; O/ D. L) y: ]0 f© 2007 Sage Publications) j' ]5 E& J1 [
10.1177/0009922806296651
" d6 c, h6 O+ @: d$ F" Ghttp://clp.sagepub.com
% D% {7 y* F* A3 Hhosted at1 o: d! ?* `( ]8 i
http://online.sagepub.com/ r7 m$ M) a0 Z$ t% V) k
Precocious puberty in boys, central or peripheral,2 g/ Y  ]# c4 `$ m1 ]6 p1 U  `
is a significant concern for physicians. Central3 D! ]0 }( m. X( b
precocious puberty (CPP), which is mediated
" g$ _, J- N) [# j1 Z4 I  h* Hthrough the hypothalamic pituitary gonadal axis, has
# |( h$ A  d& }; I' Ra higher incidence of organic central nervous system
' h# E+ z8 M# v4 A4 C1 U/ q4 llesions in boys.1,2 Virilization in boys, as manifested2 B) S9 _# N0 l; j- @# N. W: |4 q
by enlargement of the penis, development of pubic% |: U0 l6 }; A) G
hair, and facial acne without enlargement of testi-) H# E) s, _' @% v0 |+ |8 e
cles, suggests peripheral or pseudopuberty.1-3 We; P# U1 P" \- R0 q9 u7 F
report a 16-month-old boy who presented with the
6 J; P4 f  V" Z" Y9 Y7 eenlargement of the phallus and pubic hair develop-9 J# g" R0 J" L4 P* P0 M9 g; b
ment without testicular enlargement, which was due
) {5 r# Y8 b2 u% a6 C& Gto the unintentional exposure to androgen gel used by! G9 Y6 A" f3 d# {( T2 q
the father. The family initially concealed this infor-
* ]; ]" U; Y# \6 H, D: [+ omation, resulting in an extensive work-up for this) q8 @/ |6 n; ?
child. Given the widespread and easy availability of& n/ F; U' X9 G
testosterone gel and cream, we believe this is proba-3 L6 W9 i( s4 `$ z( O& r
bly more common than the rare case report in the
! U& k& e* H& E$ X, B0 ]literature.4
7 i; y- X  _' h9 D8 ]Patient Report, P6 P. T! R% j$ h6 a
A 16-month-old white child was referred to the
" t' y2 h9 u8 o. f1 Sendocrine clinic by his pediatrician with the concern
- _( K* m5 Y4 a1 rof early sexual development. His mother noticed! t' P8 u0 G7 i6 O; E5 H8 u
light colored pubic hair development when he was# V: x. p7 a. M+ W( T- m
From the 1Division of Pediatric Endocrinology, 2University of! e1 J' [1 @4 C5 D* L! O! @, v+ R
South Alabama Medical Center, Mobile, Alabama.5 u- y, B* l4 {& O. l: s
Address correspondence to: Samar K. Bhowmick, MD, FACE,+ z$ E* n; h9 k- @" L  M
Professor of Pediatrics, University of South Alabama, College of
3 B# s5 ^- h6 g8 H/ |, aMedicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;6 v9 L% C+ R+ W% x8 L" q, b' o. t
e-mail: [email protected].9 r9 O8 h' U! ?7 Z) A4 p& d( H* l7 Q& H
about 6 to 7 months old, which progressively became
, f1 d4 I9 R3 q( o+ Ydarker. She was also concerned about the enlarge-- Q7 E, D$ o! o. U4 f6 t
ment of his penis and frequent erections. The child1 [4 M. L; K2 ^, \6 f5 M' f" O. }
was the product of a full-term normal delivery, with
" {& k4 n% Y! z) e9 va birth weight of 7 lb 14 oz, and birth length of
+ W. ^4 A0 g/ o% _9 n4 e- A20 inches. He was breast-fed throughout the first year
: D* _& c' H, k( [9 tof life and was still receiving breast milk along with
! x6 F! n: T* lsolid food. He had no hospitalizations or surgery,
2 e" @& J5 G7 Q; D* Z- B3 G8 Pand his psychosocial and psychomotor development
. A$ I: Y2 P# w( C' q1 @1 c" ?was age appropriate.
, ?/ [* @4 g1 P- VThe family history was remarkable for the father,1 {( `" a- g- x
who was diagnosed with hypothyroidism at age 16,
6 V$ }; F4 p: p$ h$ Gwhich was treated with thyroxine. The father’s) |7 B0 N! X, H* u$ O
height was 6 feet, and he went through a somewhat  j# V  e" X1 p6 S; \5 [  y
early puberty and had stopped growing by age 14.
5 e9 T9 f+ o2 VThe father denied taking any other medication. The
1 V# R, B1 v" z0 `% {child’s mother was in good health. Her menarche
/ D( t& [4 u9 e% l: Dwas at 11 years of age, and her height was at 5 feet
( P2 i0 m; I' `, h, }6 f5 inches. There was no other family history of pre-  o2 g! k+ f+ Q
cocious sexual development in the first-degree rela-# ^% i2 y* C" b
tives. There were no siblings., Y/ A# }) W! b$ e: }
Physical Examination
( r+ T% t+ S3 YThe physical examination revealed a very active,( Z7 i9 \9 |+ l( ^& X. @0 v! K+ G
playful, and healthy boy. The vital signs documented
( d$ c, l3 l( j* `2 ba blood pressure of 85/50 mm Hg, his length was/ _- n4 l0 ]0 \! }( i% Z8 d
90 cm (>97th percentile), and his weight was 14.4 kg8 {2 H* @6 S- z6 y
(also >97th percentile). The observed yearly growth0 `7 ~/ K& @- `0 N
velocity was 30 cm (12 inches). The examination of$ S$ b% V5 r/ f$ O' D3 U& y
the neck revealed no thyroid enlargement.
0 o; F* q2 p  h$ B! P5 U! A' Q" LThe genitourinary examination was remarkable for+ u1 ?& k, z0 ?
enlargement of the penis, with a stretched length of8 m  i9 L: `8 f! B* ]4 F
8 cm and a width of 2 cm. The glans penis was very well
; s: s" }) C% d: c! V- s$ `developed. The pubic hair was Tanner II, mostly around7 n4 G; N$ I2 H6 o; C  `9 O. _
540  X0 c  ?9 r6 o0 Z. `, }5 S7 P/ {+ e
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
1 X, e: V( Q% m) Xthe base of the phallus and was dark and curled. The
$ W7 G! W! k& S1 S* G8 o2 I1 ^testicular volume was prepubertal at 2 mL each.
! p7 E( e, r: h" t) v3 o$ OThe skin was moist and smooth and somewhat, I1 ?$ h' I# w4 L# O
oily. No axillary hair was noted. There were no9 f) M. v" j7 Z+ J: Z4 c* _
abnormal skin pigmentations or café-au-lait spots.( T9 ]* r9 d2 n
Neurologic evaluation showed deep tendon reflex 2+
4 Y& n# Z1 V. u5 d1 m# p; c' ?# c' Kbilateral and symmetrical. There was no suggestion7 z; S+ L6 m3 N8 z
of papilledema.$ ~% p% o, e$ }8 @+ S- e: C
Laboratory Evaluation; y8 z( }+ x# U( C, }$ d
The bone age was consistent with 28 months by5 w0 w! |, {, J" S
using the standard of Greulich and Pyle at a chrono-6 u+ v  |# {! w- L) ~. T
logic age of 16 months (advanced).5 Chromosomal4 i% Q/ ^+ M' A) J/ p2 O
karyotype was 46XY. The thyroid function test
& j7 m- v1 m2 Cshowed a free T4 of 1.69 ng/dL, and thyroid stimu-$ j8 B. I; a* }& P4 l
lating hormone level was 1.3 µIU/mL (both normal).% ?& `/ n$ k8 O8 Z9 C- v+ R
The concentrations of serum electrolytes, blood
; J% P6 n6 r( X2 I! Murea nitrogen, creatinine, and calcium all were7 R4 W. h) ?! k% Z" X7 N4 `4 s4 L
within normal range for his age. The concentration- q$ R+ _& C1 ]
of serum 17-hydroxyprogesterone was 16 ng/dL2 M5 h3 i; ~' Y" w; K( m6 U/ \
(normal, 3 to 90 ng/dL), androstenedione was 20
8 n+ x' Y. n: v# gng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-- G( N9 F  s% E
terone was 38 ng/dL (normal, 50 to 760 ng/dL),
7 E  j! n9 l$ }% Odesoxycorticosterone was 4.3 ng/dL (normal, 7 to
! X9 R- I+ ]- h. Z/ \( R+ O* Z7 X49ng/dL), 11-desoxycortisol (specific compound S)0 t& O. g& f, ^! c' v
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-
5 Q, I& h) h4 Wtisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total+ U2 [- A0 q: D9 {; V/ [) P  w, D
testosterone was 60 ng/dL (normal <3 to 10 ng/dL),1 \& u2 O0 Q$ U+ a2 o
and β-human chorionic gonadotropin was less than
0 x0 n" k# L9 U" @6 T5 mIU/mL (normal <5 mIU/mL). Serum follicular  b* V* `% q! l4 R
stimulating hormone and leuteinizing hormone( `, H8 f% L1 D/ C
concentrations were less than 0.05 mIU/mL
1 G9 A  U0 l8 L(prepubertal).( l4 |$ e( @6 W- V7 s* V
The parents were notified about the laboratory
1 w$ i" P5 }7 H6 w1 Zresults and were informed that all of the tests were9 s8 F1 v, P/ f8 W7 C
normal except the testosterone level was high. The1 q% j! x' l2 X6 S
follow-up visit was arranged within a few weeks to
/ K5 v( t8 [# ?4 lobtain testicular and abdominal sonograms; how-1 E- m$ a* |+ @
ever, the family did not return for 4 months.& F9 C& O% x, d. u. h) [5 o
Physical examination at this time revealed that the
. L% t, V3 e* q+ W; T! Mchild had grown 2.5 cm in 4 months and had gained% |: N+ k3 {$ i! Q6 |3 U  e# p
2 kg of weight. Physical examination remained
% |# J$ C0 N7 k5 {unchanged. Surprisingly, the pubic hair almost com-) F+ {4 L. k6 P. v
pletely disappeared except for a few vellous hairs at
& E. N) b+ _  i4 R" f0 @the base of the phallus. Testicular volume was still 2
  ^; T  A+ G$ \mL, and the size of the penis remained unchanged.
0 [" _4 s# o" P1 oThe mother also said that the boy was no longer hav-
+ l3 ^" O! ~, c- I( M* r- Oing frequent erections./ s- R- t1 z8 R# M8 x* n& T
Both parents were again questioned about use of
2 O' P% G' J1 w5 b% Aany ointment/creams that they may have applied to) y' G6 l% ?4 ^( l/ E
the child’s skin. This time the father admitted the! Q8 R. {5 s0 p- o* F
Topical Testosterone Exposure / Bhowmick et al 541
3 O6 |, i" z& i: ouse of testosterone gel twice daily that he was apply-# J, x) K" X  p- M
ing over his own shoulders, chest, and back area for/ V& f( m; M6 U# ^* y. S1 {: Z2 ]
a year. The father also revealed he was embarrassed
' h, x6 z3 z& uto disclose that he was using a testosterone gel pre-! E* i, x2 I1 w% C- {
scribed by his family physician for decreased libido
) ?. V' z0 ^6 H3 u6 J* p  Hsecondary to depression.
: C! @7 b1 r. A! W6 kThe child slept in the same bed with parents.* p% T) P, y: s7 s
The father would hug the baby and hold him on his
) |1 ^  y$ t5 e3 H% @$ wchest for a considerable period of time, causing sig-
0 p0 P+ |, z7 Ynificant bare skin contact between baby and father.
; D0 O% f7 |( ^$ W" aThe father also admitted that after the phone call,/ ?& ?: ]& U3 D8 u$ k; h
when he learned the testosterone level in the baby
: b: b0 S& k/ w; l: c; ^' u7 dwas high, he then read the product information
- @! f0 M1 Q( A& R6 y4 hpacket and concluded that it was most likely the rea-/ u$ `, f4 v' s& Q; A
son for the child’s virilization. At that time, they
  k: x$ m0 W4 d9 W/ w! x- V6 qdecided to put the baby in a separate bed, and the
4 {/ P) q* ~3 A* W& j' Dfather was not hugging him with bare skin and had
3 M, e4 \$ f  o2 z9 X* O; {4 `been using protective clothing. A repeat testosterone, [( O6 H: a0 R1 }2 j. d8 ~
test was ordered, but the family did not go to the2 t: X( ^  l, L; @' U7 Z
laboratory to obtain the test.7 K7 _+ s$ P( y: `$ y
Discussion
& x$ Q  }8 B+ G3 ~/ J9 g; N1 \Precocious puberty in boys is defined as secondary5 L" K6 H5 C8 f, X* ]! ^# E' _
sexual development before 9 years of age.1,47 f4 K3 V! `) F
Precocious puberty is termed as central (true) when) o" |+ n! Y" x5 w  ?9 Y: T
it is caused by the premature activation of hypo-1 x1 Y( F+ v9 m
thalamic pituitary gonadal axis. CPP is more com-
& y2 l1 q  V/ i. u) w& D5 v' ymon in girls than in boys.1,3 Most boys with CPP
. ^: r3 M4 m4 D( j0 l* umay have a central nervous system lesion that is
1 h0 [6 p3 I2 F" p/ r4 Vresponsible for the early activation of the hypothal-
2 I* a* |8 j: k# U0 `# O2 Samic pituitary gonadal axis.1-3 Thus, greater empha-' }2 e3 Y# V8 N8 h0 z- A
sis has been given to neuroradiologic imaging in. j+ Y+ }3 a: T3 }$ g) o, w
boys with precocious puberty. In addition to viril-
" W6 ~1 n5 ]+ e* y6 Iization, the clinical hallmark of CPP is the symmet-- l, M& |: {; [/ M
rical testicular growth secondary to stimulation by
2 j6 S: M+ E. S) }( }  ygonadotropins.1,33 A+ }% K2 H" d
Gonadotropin-independent peripheral preco-
& ]9 m& f0 B! v: {( Y' Lcious puberty in boys also results from inappropriate: L9 k* D: \. H% j
androgenic stimulation from either endogenous or
' w) u8 H2 O6 \9 E" F- I& Mexogenous sources, nonpituitary gonadotropin stim-4 t) ^+ O( M! A3 V/ x2 O
ulation, and rare activating mutations.3 Virilizing
3 p2 K0 @/ E5 F/ {7 `8 I( v( H  wcongenital adrenal hyperplasia producing excessive
8 E5 p" l! l1 W2 s) m& ]adrenal androgens is a common cause of precocious
. c) U: \4 F/ z$ Qpuberty in boys.3,4
" ~/ `+ R) C* `2 J; V8 w" j7 E1 ~3 iThe most common form of congenital adrenal( {% f5 m$ [/ [4 T' ?0 f2 A
hyperplasia is the 21-hydroxylase enzyme deficiency.5 t6 l! f, W# D3 e6 ]. L9 T
The 11-β hydroxylase deficiency may also result in; _# x9 t9 {4 W
excessive adrenal androgen production, and rarely,
( C! P; X7 m2 r- jan adrenal tumor may also cause adrenal androgen
4 b1 x& B  [+ _* X" \: fexcess.1,3
) T2 J9 [3 m( H, F4 Kat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
7 c4 H( i% r$ o$ A542 Clinical Pediatrics / Vol. 46, No. 6, July 2007
2 \/ u9 {9 M  B! zA unique entity of male-limited gonadotropin-* ~' t5 M7 K' j; W- d
independent precocious puberty, which is also known
$ @) C3 s4 U% }% h/ J  {as testotoxicosis, may cause precocious puberty at a
, J. \. i8 d% l8 u; qvery young age. The physical findings in these boys
" c9 t/ G5 U  A7 q8 r" v  iwith this disorder are full pubertal development,
4 G0 }' b$ g8 r" l+ i4 sincluding bilateral testicular growth, similar to boys  o& |) u& O9 M
with CPP. The gonadotropin levels in this disorder& |" V; {& Z, e
are suppressed to prepubertal levels and do not show3 d3 e. K* b- l5 f1 M7 ^! N, [
pubertal response of gonadotropin after gonadotropin-4 w" f0 |- ?; g6 V4 n: F7 J' o( X
releasing hormone stimulation. This is a sex-linked2 i  q/ U& x$ h' ]" F4 A& C% b
autosomal dominant disorder that affects only) v1 J- z  L. V4 o
males; therefore, other male members of the family1 Q# C0 E4 }2 _( A, z
may have similar precocious puberty.3
3 n$ V8 G5 \1 X+ w6 p4 v( [0 AIn our patient, physical examination was incon-! @1 k9 }  K9 Y
sistent with true precocious puberty since his testi-
1 ]9 }2 t6 o, ocles were prepubertal in size. However, testotoxicosis( N% Z6 ?1 g, E
was in the differential diagnosis because his father
, s2 i  N1 J5 w6 X* P. v7 h2 `& zstarted puberty somewhat early, and occasionally,) j# }& L* @* N4 w$ U$ S: Z
testicular enlargement is not that evident in the
) W* r- E+ O, X4 gbeginning of this process.1 In the absence of a neg-& ?) I% c7 T" `0 b; B3 j
ative initial history of androgen exposure, our5 d/ s7 T% A: u) X7 x) I7 m
biggest concern was virilizing adrenal hyperplasia,
, S, i2 d8 m( B7 C9 [8 P& h$ Yeither 21-hydroxylase deficiency or 11-β hydroxylase
& w9 ^3 p, l1 L2 }. I0 udeficiency. Those diagnoses were excluded by find-2 f/ ^4 c* g$ J0 D/ k+ F# X) ~
ing the normal level of adrenal steroids.$ k! v. U' U: e* @6 H2 s1 Q; j
The diagnosis of exogenous androgens was strongly  u$ x6 z0 Y3 t" `0 I) K
suspected in a follow-up visit after 4 months because' j! S% C$ F1 m- {# T& P  P
the physical examination revealed the complete disap-
# l8 q* M8 F" T" M& R: upearance of pubic hair, normal growth velocity, and! D; W& {! Y3 y; ^# I2 [
decreased erections. The father admitted using a testos-
, |' b5 O* _- f7 C- h+ E9 J( N! Z# vterone gel, which he concealed at first visit. He was
9 |) Y+ t  Q% s" Y8 {$ ousing it rather frequently, twice a day. The Physicians’3 O& h5 l8 ?4 t2 t% I; {# I
Desk Reference, or package insert of this product, gel or; H6 X5 K, b# U/ }$ U  n, [: r
cream, cautions about dermal testosterone transfer to" w! G4 C: w+ d& @, G3 l
unprotected females through direct skin exposure.
9 _' W5 {* @) f4 ]Serum testosterone level was found to be 2 times the
( C) q$ j# t% @7 o& r8 ?0 Kbaseline value in those females who were exposed to- r9 D, Q9 f) Y
even 15 minutes of direct skin contact with their male
5 {9 k5 \" g! e/ J+ Opartners.6 However, when a shirt covered the applica-
: q, i' X+ }6 ]2 F: s# ltion site, this testosterone transfer was prevented.
+ v0 D$ ^  o, b" b/ w6 VOur patient’s testosterone level was 60 ng/mL,
& }8 c( E; P9 b. V9 F; vwhich was clearly high. Some studies suggest that7 L4 ?$ C$ \& ?" u
dermal conversion of testosterone to dihydrotestos-# ]' {1 {1 J/ h- Q' S& T6 h
terone, which is a more potent metabolite, is more; E4 ~" I7 a+ b: e
active in young children exposed to testosterone, c2 Q4 `1 E& p% L9 T
exogenously7; however, we did not measure a dihy-
% N' z; f) J# R# q4 h  x7 A5 C$ Ddrotestosterone level in our patient. In addition to) h; s- n1 [) t" B% I
virilization, exposure to exogenous testosterone in
' ?: o$ j- U9 {children results in an increase in growth velocity and
+ D! \) j) u. k' j4 N& n& Yadvanced bone age, as seen in our patient.
0 e7 n9 q! f- [* YThe long-term effect of androgen exposure during
& T, O  C/ i- `, R$ ^& |$ f- Eearly childhood on pubertal development and final9 n5 n. Y( a( c. y
adult height are not fully known and always remain* ]. B" m. U: M& F- L
a concern. Children treated with short-term testos-
; d  T: w( Q3 ^$ v8 Xterone injection or topical androgen may exhibit some
2 ?$ Y7 |  [1 s* ]2 \' M9 T# |) A% Dacceleration of the skeletal maturation; however, after
8 t1 R0 i( M- U5 v% V8 zcessation of treatment, the rate of bone maturation/ f( c* \/ c& c& E" _$ h' j
decelerates and gradually returns to normal.8,9- |) j& |' l. v' m
There are conflicting reports and controversy& D' U1 ^7 m! L0 m* j" g  c) ?+ |
over the effect of early androgen exposure on adult, \$ {* F1 t2 o4 ~6 S8 _# }
penile length.10,11 Some reports suggest subnormal
7 j* K) o/ {3 d% a6 \adult penile length, apparently because of downreg-
* F0 o9 o+ U' Y2 e& r8 e/ W9 ?# mulation of androgen receptor number.10,12 However," s) X' e# v% z& U: x
Sutherland et al13 did not find a correlation between% v6 e$ H, i# z$ {
childhood testosterone exposure and reduced adult' W2 x4 S& C! @  W7 p3 I! r
penile length in clinical studies.) v( f, w0 H# {
Nonetheless, we do not believe our patient is
+ C* G8 T) f( e* a: n1 f6 zgoing to experience any of the untoward effects from
% r# v9 A& y4 {2 @$ ]testosterone exposure as mentioned earlier because
# P' p8 c. g3 G/ P6 B$ tthe exposure was not for a prolonged period of time.
* ]$ ^9 Z, I) Z6 O) j- HAlthough the bone age was advanced at the time of
: S* H- R6 l( V; a8 C* {* b! Mdiagnosis, the child had a normal growth velocity at
! b: O5 h: N$ a) {& w' Kthe follow-up visit. It is hoped that his final adult- d, t; ^+ g/ g8 l# f
height will not be affected.) \1 k0 @6 X) z3 Y) W+ V& i  m% X
Although rarely reported, the widespread avail-
3 y7 e% J1 x' U) I4 ]. rability of androgen products in our society may" k8 [/ s, @. t) y
indeed cause more virilization in male or female
3 B# m" P% K7 cchildren than one would realize. Exposure to andro-
; B2 ^- E3 c* P* I% Y( x/ G7 `gen products must be considered and specific ques-
- h8 L: N. a: J) rtioning about the use of a testosterone product or
0 \1 f" L3 d0 O  R. Mgel should be asked of the family members during; Z9 @! a+ t4 i
the evaluation of any children who present with vir-
) S0 M# n. v$ I0 A: Dilization or peripheral precocious puberty. The diag-
# L3 ]0 D: ~2 [6 n, n- }nosis can be established by just a few tests and by
- ?% b' x. x; L/ J& mappropriate history. The inability to obtain such a
" h* v( s( C7 T* P- }% jhistory, or failure to ask the specific questions, may
4 G0 C# P4 r  U! presult in extensive, unnecessary, and expensive
, h/ ]7 M- e3 J8 ]# \3 Q/ J% f3 Minvestigation. The primary care physician should be$ I8 p4 ^4 r# j. [1 U' w9 @. j
aware of this fact, because most of these children9 g9 S2 u& W& Q' X
may initially present in their practice. The Physicians’
2 D& k: O' k9 W8 j3 A! {( vDesk Reference and package insert should also put a  s) |( Q6 U; O# f
warning about the virilizing effect on a male or0 N3 l3 n7 W$ C* ^* Z: k* U
female child who might come in contact with some-
0 H( j5 a7 ?$ }8 c  b1 j# `one using any of these products.) |4 C0 Q5 D, S+ r/ C0 s
References) ]/ y# h) S* d( C8 t5 v' u8 H) k  `8 l. @
1. Styne DM. The testes: disorder of sexual differentiation: R8 ~2 |# k* y% ~
and puberty in the male. In: Sperling MA, ed. Pediatric  @" u5 u1 d8 M. [
Endocrinology. 2nd ed. Philadelphia, PA: WB Saunders;9 ]8 ^* J4 U/ X8 O! M8 @( Z
2002: 565-628.. B0 U$ B  L) Q# Z, v2 o7 F
2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious4 w. p. T& A$ 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
發表於 2025-1-17 16:31:39 | 顯示全部樓層
4个什么样的?
發表於 2025-1-19 02:41:05 | 顯示全部樓層

& ?3 J, p: s0 ^, q' Y* Q* c精妙絕倫的精品,感謝啊!期待你更多更好的創作哦!
發表於 2025-3-11 12:31:56 | 顯示全部樓層
么好吧v进化过程就回国参加发uft成就和;哦i回来就好v科技股份兄弟人的 路由公开vu个v库每年b
發表於 2025-4-8 11:10:25 | 顯示全部樓層
精妙絕倫的精品,感謝啊!期待你更多更好的創作哦!
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