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Sexual Precocity in a 16-Month-Old
- @( F7 u9 Y+ t7 J3 iBoy Induced by Indirect Topical7 o: a. y% p0 ^4 e% S+ T( J
Exposure to Testosterone% D; P3 c* ^) c) C) q
Samar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,2% P& F6 z1 k. c5 W2 P
and Kenneth R. Rettig, MD1
& M- E2 D8 Z; T/ H7 uClinical Pediatrics
9 n5 O: O2 m. u* F5 W# g! WVolume 46 Number 6
. x# v5 O3 b" g( `$ q: q- wJuly 2007 540-543; }  b! L& n$ ~2 ~+ Y5 n
© 2007 Sage Publications- x# `+ y5 N5 i% W) n) F
10.1177/0009922806296651
2 j5 T& ?- t$ }. \http://clp.sagepub.com" d# k0 g6 [  n7 M& t+ d
hosted at
7 {! |& n) {1 g& ~2 ?) nhttp://online.sagepub.com$ a4 Q: [& W0 M4 I# _: a$ B. O
Precocious puberty in boys, central or peripheral,
7 `2 E8 j2 A$ O1 ]0 ois a significant concern for physicians. Central: d/ J4 Y2 W5 }. t- ~
precocious puberty (CPP), which is mediated
6 F- r0 p1 `& ]( d4 Hthrough the hypothalamic pituitary gonadal axis, has2 a% o2 r4 m/ D
a higher incidence of organic central nervous system* B( N4 P9 f1 w0 Q8 e
lesions in boys.1,2 Virilization in boys, as manifested
8 ^. `  m/ g2 r$ p3 dby enlargement of the penis, development of pubic8 m) f- h, u, Q: Q
hair, and facial acne without enlargement of testi-3 f3 c: f5 ^+ B% L0 S9 ^& Y7 u+ f
cles, suggests peripheral or pseudopuberty.1-3 We7 l" G7 u9 E( _: ^( Z
report a 16-month-old boy who presented with the
  ]1 C5 y, X+ W0 zenlargement of the phallus and pubic hair develop-" t# z9 j& X; u# F. x$ ?# j& `9 _  q) e
ment without testicular enlargement, which was due
" x9 X3 p6 [+ D* w1 W4 e" kto the unintentional exposure to androgen gel used by& r- @! u/ R% s# f
the father. The family initially concealed this infor-
) w7 w5 o1 U4 Ymation, resulting in an extensive work-up for this
4 K- Q6 Y9 i! fchild. Given the widespread and easy availability of
! X3 `/ P! F2 O' X+ Utestosterone gel and cream, we believe this is proba-
) }# |% @( W- J6 U6 m& p/ z1 qbly more common than the rare case report in the- M3 O$ |. U0 G* c* Z. T
literature.4
6 ?6 b; m6 y, c2 uPatient Report$ A6 g9 R5 M) ]/ l- O! w
A 16-month-old white child was referred to the$ x! T0 g/ ?  c: f  `2 X
endocrine clinic by his pediatrician with the concern
. r' l6 u! K; p) Wof early sexual development. His mother noticed$ n: ^) H: q6 A+ K7 Z( u2 I
light colored pubic hair development when he was; j, m7 y' }6 ^1 ]# l! M, F& W% N
From the 1Division of Pediatric Endocrinology, 2University of' d' f6 |4 F& }
South Alabama Medical Center, Mobile, Alabama.# n1 l2 X8 U% X9 z
Address correspondence to: Samar K. Bhowmick, MD, FACE,
9 X2 C- k: [6 }$ E, R% f8 uProfessor of Pediatrics, University of South Alabama, College of$ V/ O9 ]- c! l
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;
+ z  }8 f& K# p/ P8 Qe-mail: [email protected].4 I( i2 P# P6 p) e' W/ ~: P2 H5 r
about 6 to 7 months old, which progressively became
  `; U  k. e- c  ndarker. She was also concerned about the enlarge-
" `* I4 W1 Y( g- Lment of his penis and frequent erections. The child
, J9 P3 V3 C2 B1 I; Ewas the product of a full-term normal delivery, with3 _, J. K0 [. {$ y! O
a birth weight of 7 lb 14 oz, and birth length of
0 \% R" t$ r; h; r9 H. r20 inches. He was breast-fed throughout the first year9 i  f, T3 P! Q
of life and was still receiving breast milk along with' d+ I" F- T/ j
solid food. He had no hospitalizations or surgery,
, l/ P7 M+ p+ i# S" band his psychosocial and psychomotor development
+ c* I' W4 ?; m9 Q- x! I  _; twas age appropriate.
+ N3 @1 P, w  b# W8 ?7 ?The family history was remarkable for the father,. q4 P5 m. M1 a5 h
who was diagnosed with hypothyroidism at age 16,
1 W5 I# j# ]# o. O* F$ L4 L% K7 Awhich was treated with thyroxine. The father’s
$ Q' X4 \- s: F7 Vheight was 6 feet, and he went through a somewhat# g$ q% G& \( ?! B( W  c" @: Y
early puberty and had stopped growing by age 14.; x/ k. T4 a; s0 J: _5 T; B4 w" V
The father denied taking any other medication. The
* H% w  |" W& B& Z5 s0 ]child’s mother was in good health. Her menarche6 q! ~3 [4 u, Z' f/ \
was at 11 years of age, and her height was at 5 feet; C2 q# s5 Z& W) y4 m0 ]: z
5 inches. There was no other family history of pre-
5 b0 `2 R% N' U0 _cocious sexual development in the first-degree rela-0 f* ~8 B) r3 y: |( L
tives. There were no siblings.4 ?0 E; ~  {, ?1 n$ g# x5 l
Physical Examination3 O; f6 _& }* |0 Q) [$ j1 G" |4 T
The physical examination revealed a very active,
* W9 l( X3 Y+ V, D9 ?playful, and healthy boy. The vital signs documented
2 `0 _3 l+ H- `a blood pressure of 85/50 mm Hg, his length was. T; t6 y- v% w9 o
90 cm (>97th percentile), and his weight was 14.4 kg
" T5 L& l! r; ]9 w0 M(also >97th percentile). The observed yearly growth
7 H9 r- M3 F2 {+ G4 Z8 ^velocity was 30 cm (12 inches). The examination of% {3 _* `" Q0 ~6 a# m; [
the neck revealed no thyroid enlargement.' ~% E+ B# @0 M, ~  |) G+ g
The genitourinary examination was remarkable for4 v4 j  K( _+ u
enlargement of the penis, with a stretched length of- z, ]% g, F8 i2 A3 ?
8 cm and a width of 2 cm. The glans penis was very well  r" D6 l$ q) V6 N5 x
developed. The pubic hair was Tanner II, mostly around
3 P% M; c6 I/ b8 `+ A540
6 d9 A) k' \; Tat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from$ P" u# m* r  s
the base of the phallus and was dark and curled. The
! W5 h, O; n9 O& z% ttesticular volume was prepubertal at 2 mL each.
  A9 N# H& Z2 h# C0 qThe skin was moist and smooth and somewhat
- E) b' E4 S' D8 b3 o  T' W* u, A) Zoily. No axillary hair was noted. There were no( a7 c5 K- x8 e
abnormal skin pigmentations or café-au-lait spots.
) G) B' C! h4 t4 hNeurologic evaluation showed deep tendon reflex 2+# w4 P2 H6 y, z$ B; Q- Q
bilateral and symmetrical. There was no suggestion% o: p8 a) ]8 X- Y; T
of papilledema.0 U6 K" h" {* ^8 T2 ~) d3 i  C+ g  X7 g6 N
Laboratory Evaluation
, b( w3 E8 f7 d1 [" bThe bone age was consistent with 28 months by
! g3 f7 n& s- }1 x/ Nusing the standard of Greulich and Pyle at a chrono-
. ?2 E' l6 v# {; mlogic age of 16 months (advanced).5 Chromosomal
+ G3 x7 a5 S9 W4 t' ykaryotype was 46XY. The thyroid function test& \# a+ F; l) I7 A: o3 ]( K# m
showed a free T4 of 1.69 ng/dL, and thyroid stimu-
) b; x8 }& G- s* s6 n8 b( ylating hormone level was 1.3 µIU/mL (both normal).
- g! o" O0 ]; O, _The concentrations of serum electrolytes, blood
, c' O* n7 d2 ?7 N4 Y2 f6 P8 g$ g% lurea nitrogen, creatinine, and calcium all were
; P5 `3 M+ d6 L/ L2 Vwithin normal range for his age. The concentration/ [( a2 @% }6 j; f" S
of serum 17-hydroxyprogesterone was 16 ng/dL$ ?1 r0 ?1 r- ~2 H
(normal, 3 to 90 ng/dL), androstenedione was 20
, @5 {! z5 j! lng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-: s$ ^- M% w4 u0 ~% ?  c
terone was 38 ng/dL (normal, 50 to 760 ng/dL),4 r( b1 [7 S! ~) f3 I
desoxycorticosterone was 4.3 ng/dL (normal, 7 to
" d* K9 X2 f9 ^4 C; r3 I49ng/dL), 11-desoxycortisol (specific compound S)/ `& Z* `, w9 h4 G6 B$ K
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-
# h; L3 j0 `2 e0 I0 f# J- I7 Htisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total
' l$ p1 r9 ~+ a. v2 j" Ftestosterone was 60 ng/dL (normal <3 to 10 ng/dL),4 A* U: o, w/ |2 U% [+ O& i
and β-human chorionic gonadotropin was less than7 K* D1 _' N8 d8 I! G
5 mIU/mL (normal <5 mIU/mL). Serum follicular
) L& ^1 X6 x, j& K. e" istimulating hormone and leuteinizing hormone
4 ?  N/ d+ E7 ?: mconcentrations were less than 0.05 mIU/mL
: G4 \- j- e4 R7 v$ @1 N8 c(prepubertal).! a7 m1 C4 S7 e* n" k
The parents were notified about the laboratory
7 j& O( U; h: h/ }results and were informed that all of the tests were
/ U9 x% {: ?# s/ ?" A3 Qnormal except the testosterone level was high. The
% i: K# ]. {7 H) d; ^* y1 Ofollow-up visit was arranged within a few weeks to
) o4 z+ o: u, Tobtain testicular and abdominal sonograms; how-8 y+ |" B% W' p2 }# ~) h, q4 X
ever, the family did not return for 4 months.0 r3 B8 a. M2 |, @! g( a' m
Physical examination at this time revealed that the2 R) g* G! [2 v3 }7 _, q
child had grown 2.5 cm in 4 months and had gained2 W' `* l/ O) ]. [
2 kg of weight. Physical examination remained  J+ @1 u7 J* z2 n; a/ l
unchanged. Surprisingly, the pubic hair almost com-
9 q+ U8 |( d, P, Z5 Upletely disappeared except for a few vellous hairs at, ^3 N. [, W) X8 a+ K& B( H
the base of the phallus. Testicular volume was still 21 d6 d3 }5 o4 P! i. c) O' H& B
mL, and the size of the penis remained unchanged.
8 Y2 N+ c% N; TThe mother also said that the boy was no longer hav-
- d$ [) H2 S  W) T( l  B6 Ting frequent erections.7 J* E+ i% P3 L
Both parents were again questioned about use of8 A8 T4 Y- i8 ^7 s2 Y" Y
any ointment/creams that they may have applied to
  N" P* x/ {% r4 d+ r7 Bthe child’s skin. This time the father admitted the
+ B8 m6 @5 ?" z# l# DTopical Testosterone Exposure / Bhowmick et al 541% r# R( U  N& N7 i: ^+ W
use of testosterone gel twice daily that he was apply-
  Q% {' G5 s/ ?$ P9 ~0 F5 l8 F+ }( `ing over his own shoulders, chest, and back area for
: k2 V: q- o3 ?' L  o* Wa year. The father also revealed he was embarrassed2 |* @9 w8 z7 @- s$ M
to disclose that he was using a testosterone gel pre-, |) L; d% ]9 G/ M5 i
scribed by his family physician for decreased libido4 B+ |4 d- f1 a* V0 g( o1 N5 `6 P
secondary to depression.4 |* {( {7 e3 E
The child slept in the same bed with parents.0 y& v# e5 f1 S1 l
The father would hug the baby and hold him on his
; h  @- [) x- m  C& Rchest for a considerable period of time, causing sig-& N  b9 {: ?. u5 O. p
nificant bare skin contact between baby and father.
5 k$ w* S. _4 G7 v$ @) QThe father also admitted that after the phone call,5 }6 d6 b! [- g) G+ _" q& }
when he learned the testosterone level in the baby5 A* X' G: J" E8 `0 |- u: g
was high, he then read the product information0 J$ I; V5 w# Y8 O( d% {0 g  R- n
packet and concluded that it was most likely the rea-8 c0 Z6 X, s" }% `" O7 T' D
son for the child’s virilization. At that time, they
) j+ }4 _3 y& `decided to put the baby in a separate bed, and the% I  o) c) X" E' t0 m
father was not hugging him with bare skin and had/ S6 j, t% q. u1 \6 \' Q
been using protective clothing. A repeat testosterone
: o% U* ]8 Q4 U% |! |' Ytest was ordered, but the family did not go to the6 q  F( m- a! R1 w, r6 i, e
laboratory to obtain the test.
  T9 t* I# z0 ~, }! C8 z. NDiscussion8 Q" q/ P% d6 j$ E7 x
Precocious puberty in boys is defined as secondary3 e( h5 p- z. V2 ~; [
sexual development before 9 years of age.1,42 Z7 V" A2 Q7 s; K8 y( N
Precocious puberty is termed as central (true) when2 S2 S9 n0 ^! _7 [9 i4 G
it is caused by the premature activation of hypo-
0 d& `8 x6 U3 |- b6 v5 uthalamic pituitary gonadal axis. CPP is more com-
5 S; d7 W! m2 fmon in girls than in boys.1,3 Most boys with CPP
0 V3 i* v. V7 O# B. qmay have a central nervous system lesion that is* R9 X$ k- H& x4 O, M! O, h6 }+ E
responsible for the early activation of the hypothal-
/ z  I, q. K; f. L- Hamic pituitary gonadal axis.1-3 Thus, greater empha-
. `2 [; M2 n6 J$ I" Bsis has been given to neuroradiologic imaging in
/ Z- ^+ z/ x' b$ L- Iboys with precocious puberty. In addition to viril-( d2 }* M  l+ L1 L, |, ~
ization, the clinical hallmark of CPP is the symmet-
1 ]+ a0 N* w1 orical testicular growth secondary to stimulation by
6 w8 O" ]7 L2 ~- xgonadotropins.1,3
, F  _2 m# J& g3 f' R* O2 p8 `Gonadotropin-independent peripheral preco-
; J1 x1 r* s) M- e4 s* X) S$ Mcious puberty in boys also results from inappropriate
" g# _0 h/ M: P5 H& q' jandrogenic stimulation from either endogenous or- I+ c8 K, _4 U! T0 k6 v
exogenous sources, nonpituitary gonadotropin stim-* C, P$ S- [+ q+ h1 x9 E/ @& R" [' w
ulation, and rare activating mutations.3 Virilizing
+ \4 w. u. I% J2 E0 zcongenital adrenal hyperplasia producing excessive0 |% L4 h% _. z1 b. g
adrenal androgens is a common cause of precocious
4 _' o4 F4 `5 F. R. C" \4 zpuberty in boys.3,46 j0 e$ J- x. {: r3 V% V4 m
The most common form of congenital adrenal
) d" x/ O) K6 T+ }hyperplasia is the 21-hydroxylase enzyme deficiency.2 |+ \" N0 {3 S' U
The 11-β hydroxylase deficiency may also result in1 x& v2 }! x5 F5 a" H0 f4 l% S. z  X
excessive adrenal androgen production, and rarely,
! Y/ q7 G+ `+ X, _, M+ M& l7 qan adrenal tumor may also cause adrenal androgen  _8 T. o# N6 X6 v6 g6 B/ y3 ~: ]
excess.1,3
, \  x5 d0 E, P$ r6 J: ?3 O) bat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
$ y- A6 B7 q& s- k: l3 f3 e8 W. ?542 Clinical Pediatrics / Vol. 46, No. 6, July 2007
) T+ V" W) ~' D( b  TA unique entity of male-limited gonadotropin-
2 |$ ^4 Q9 d/ x% A# Cindependent precocious puberty, which is also known
  o, e3 K1 k& ?. [$ J% K1 ras testotoxicosis, may cause precocious puberty at a8 f1 Y# B* n3 n- }$ z
very young age. The physical findings in these boys
7 C0 ~- r# C4 Q  L6 M# _with this disorder are full pubertal development,
: d5 m( I- m2 D& X+ kincluding bilateral testicular growth, similar to boys+ o& n9 ]: }) p5 T! u2 t: n1 N) }
with CPP. The gonadotropin levels in this disorder
$ X: V6 m  w/ [% c# B* Nare suppressed to prepubertal levels and do not show
$ I$ {" i- U! j! xpubertal response of gonadotropin after gonadotropin-8 |/ L, @! v8 f. {
releasing hormone stimulation. This is a sex-linked
; O+ d3 a4 h3 t% nautosomal dominant disorder that affects only9 S+ i& ~* C3 Z/ g8 b- o3 s
males; therefore, other male members of the family
' ^; R, d+ O2 G  Xmay have similar precocious puberty.3
. k9 B/ v3 ]: WIn our patient, physical examination was incon-
) {( J5 T, l( R- Q+ D8 _sistent with true precocious puberty since his testi-. }2 v& H9 b0 n- C( c' S$ c
cles were prepubertal in size. However, testotoxicosis
9 G2 R! n, _$ |was in the differential diagnosis because his father, e, V, I. {+ s* G% @
started puberty somewhat early, and occasionally,
: p- R( Q: t) l8 \testicular enlargement is not that evident in the
, l1 k# s" F" J7 J8 P9 \; e# p2 Ebeginning of this process.1 In the absence of a neg-
1 `: D, T4 ?0 e8 [ative initial history of androgen exposure, our
, g% V2 O$ N9 H% b8 w6 e, {biggest concern was virilizing adrenal hyperplasia,; ^# f; c2 X+ X  m: [
either 21-hydroxylase deficiency or 11-β hydroxylase% m2 H8 J! \. A0 |+ Q
deficiency. Those diagnoses were excluded by find-0 b% [- [) j" m- y
ing the normal level of adrenal steroids.
: {4 B" H. L; S9 c  wThe diagnosis of exogenous androgens was strongly
; K/ N  w$ o$ h& gsuspected in a follow-up visit after 4 months because
1 }% q2 X, r) h' \the physical examination revealed the complete disap-
# V: c* A: R. b2 U( d9 W# H, }& R9 |pearance of pubic hair, normal growth velocity, and
& u3 S9 F" U5 L# Zdecreased erections. The father admitted using a testos-: F7 j3 X2 q1 G: ^( _, e
terone gel, which he concealed at first visit. He was; r- w  [9 Y0 V5 p4 Y$ P8 p5 h- M% ]
using it rather frequently, twice a day. The Physicians’
6 g0 `5 \* o2 CDesk Reference, or package insert of this product, gel or, \2 J" u4 f4 D
cream, cautions about dermal testosterone transfer to
# W' n/ Y4 p; ^unprotected females through direct skin exposure.4 S+ P: J5 u6 f" e
Serum testosterone level was found to be 2 times the0 ^$ l. a) {3 ]' r4 b& d+ k/ m6 W
baseline value in those females who were exposed to8 \! c% S# k4 P& w
even 15 minutes of direct skin contact with their male( F. A8 F1 H% H7 a. x0 P
partners.6 However, when a shirt covered the applica-
% V  @# |5 W9 w/ [! p+ C2 mtion site, this testosterone transfer was prevented.
: }# G! V& g' [8 d7 d0 y: eOur patient’s testosterone level was 60 ng/mL,2 Y' |. \3 f7 K8 H4 m; d- I4 d; N7 {
which was clearly high. Some studies suggest that
* ]  ]; n( V) X8 ^! p" ~! Sdermal conversion of testosterone to dihydrotestos-. |! C7 j7 X, X1 e& }8 Q" |( `# A
terone, which is a more potent metabolite, is more' B3 S& L/ B' q' N6 w  a1 a
active in young children exposed to testosterone/ v, F! L5 a6 l1 {
exogenously7; however, we did not measure a dihy-
. {2 [+ h' I" f" ^8 }2 l9 ?2 ldrotestosterone level in our patient. In addition to
4 F! ]  j6 ?& E* Uvirilization, exposure to exogenous testosterone in$ |" A% I' J/ Z% r  w
children results in an increase in growth velocity and% q' p% U( `- S) M' O, Y
advanced bone age, as seen in our patient.
. Q* _2 j3 E" f! CThe long-term effect of androgen exposure during
- N9 s3 o1 b& ~; X4 nearly childhood on pubertal development and final
- v5 a, R- F- b) o6 h4 @adult height are not fully known and always remain# }  N4 }, }& e0 i8 u) M8 g3 T
a concern. Children treated with short-term testos-1 p( Z1 n; T3 S3 ~- r& @
terone injection or topical androgen may exhibit some% s/ l5 S( q8 v+ T7 |4 T9 R; Z
acceleration of the skeletal maturation; however, after
& R% V" l4 `# u5 Q* \* z- \# l5 mcessation of treatment, the rate of bone maturation
0 _6 J1 O0 Y- I8 J3 |9 J0 A2 {) Bdecelerates and gradually returns to normal.8,9
" ?* H0 s8 ?  l! ?$ uThere are conflicting reports and controversy
$ F# A; ?% H1 i+ r7 c. |over the effect of early androgen exposure on adult5 Q- h2 n# {" x: U9 Y4 S0 s0 k
penile length.10,11 Some reports suggest subnormal
% j* W- v3 c8 X+ Badult penile length, apparently because of downreg-( \6 y) G7 m# C* a( A
ulation of androgen receptor number.10,12 However,
* z7 I  s) J4 {Sutherland et al13 did not find a correlation between$ J  ?7 ]1 L: d0 M  M
childhood testosterone exposure and reduced adult1 W% j2 k5 C$ c( O. _- |- T5 H- \- L# G
penile length in clinical studies.% `- k% I: D5 w9 r- @9 N+ E
Nonetheless, we do not believe our patient is7 I8 G0 N  R8 o( }% y
going to experience any of the untoward effects from
2 T' g# w( A& d4 R/ R7 E) [9 R, Jtestosterone exposure as mentioned earlier because" u( u( l  G  K8 u0 }+ m( ]
the exposure was not for a prolonged period of time.1 L& v- k3 ?1 ?6 r+ v% `3 `
Although the bone age was advanced at the time of
2 x+ @7 F- _( O( o' [diagnosis, the child had a normal growth velocity at
5 m* G& R; Q" H. Q$ ~0 k, ?- pthe follow-up visit. It is hoped that his final adult6 D( ]2 j+ L6 L7 O3 b: m
height will not be affected.$ X6 A2 X8 O0 {
Although rarely reported, the widespread avail-+ A# g8 I2 M3 E1 e1 H  D
ability of androgen products in our society may
7 M7 X# S8 b) C: J' _$ c# r7 dindeed cause more virilization in male or female
' ~  o1 V' U' [/ i' Vchildren than one would realize. Exposure to andro-
/ y$ C9 X# b( s9 t# i5 W* @& j6 r( i, Lgen products must be considered and specific ques-0 H8 w, V' q0 e* R& V# x
tioning about the use of a testosterone product or
2 O# K! o# |0 a7 A  {8 P7 ygel should be asked of the family members during
1 V5 [7 ^4 T1 Cthe evaluation of any children who present with vir-
9 ~: Q+ k2 s/ ]! oilization or peripheral precocious puberty. The diag-
# O* V9 r3 `. }+ nnosis can be established by just a few tests and by' ]+ a. a1 M/ U
appropriate history. The inability to obtain such a) h6 W5 _, t3 q8 f+ a8 ^8 f" \
history, or failure to ask the specific questions, may
' g  }8 x4 e0 @6 _- N2 Nresult in extensive, unnecessary, and expensive/ P* G1 R, v; T, N& x+ y
investigation. The primary care physician should be
, G6 ]/ Z  B# D" a# |aware of this fact, because most of these children
5 I2 f$ t4 I) _+ A9 w! bmay initially present in their practice. The Physicians’
* `4 d: a0 K( P% R! L- r( u. M( DDesk Reference and package insert should also put a+ Y* k' i3 f. N" l9 A( N$ L
warning about the virilizing effect on a male or  `- ?* e  ?9 ~5 ?4 \
female child who might come in contact with some-
9 u, r( ]; I) ^& H, R  bone using any of these products.
/ N- P8 u1 n9 j8 ~2 I; XReferences
$ C- y9 ^% r3 x  ^1 I2 L9 x1. Styne DM. The testes: disorder of sexual differentiation8 Z; c: d; @& m  K* [8 A
and puberty in the male. In: Sperling MA, ed. Pediatric4 a+ R( {7 u1 y" q$ ^
Endocrinology. 2nd ed. Philadelphia, PA: WB Saunders;. a  C  [/ [  t* q/ c! ~( s& p5 B
2002: 565-628.
! A- S* r! r3 E5 L, B8 ~2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious
& g0 K) ?5 F& ]' ~+ W% ~- I; upuberty 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-Old4 K% c' ]: s+ x' P! _# O3 m' }! G
Boy Induced by Indirect Topical
( w! V) d: O: o5 CExposure to Testosterone0 Z4 ~: j1 w3 L$ [  Z1 i$ p. v
Samar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,2
- @( i' t6 Z6 ~and Kenneth R. Rettig, MD10 q, x9 Y' g) a: z
Clinical Pediatrics' u- z& M% Q8 A1 H7 G" C
Volume 46 Number 6
6 J. Z( e4 A5 R5 P# Y+ ^July 2007 540-543
- [: g. w! {5 Z© 2007 Sage Publications' h% d) b4 }* R9 y5 e& V8 z
10.1177/0009922806296651! c+ h) }* s3 ~# u$ Y( T' x% F
http://clp.sagepub.com7 z" f. _: @) F" v+ Y( B: i
hosted at
- |8 c$ m) o1 Ohttp://online.sagepub.com
$ \- S) F; H' jPrecocious puberty in boys, central or peripheral,
# M1 D# }. y- @! s8 [is a significant concern for physicians. Central
: u1 d6 c  ~) Tprecocious puberty (CPP), which is mediated" R( p0 {+ \& \# n
through the hypothalamic pituitary gonadal axis, has
* b8 `0 r8 l6 s$ ca higher incidence of organic central nervous system, t* e9 Y9 N$ ~- l; V
lesions in boys.1,2 Virilization in boys, as manifested9 {7 y" r' Q9 R2 D7 @, J
by enlargement of the penis, development of pubic
6 T" {# x4 e$ i' U/ o! \# C9 phair, and facial acne without enlargement of testi-
4 P% K% ]3 i* m: ^' `* wcles, suggests peripheral or pseudopuberty.1-3 We
# V* m/ {9 a* U5 W- ]' t( Areport a 16-month-old boy who presented with the+ X0 N" @- G( J
enlargement of the phallus and pubic hair develop-  Q5 p$ ]0 |+ c2 G, o5 ^
ment without testicular enlargement, which was due9 g& f7 @8 F4 N; u8 o
to the unintentional exposure to androgen gel used by" y, G& Y  F3 G# o
the father. The family initially concealed this infor-
& G: k" I4 f9 i2 @9 W! ymation, resulting in an extensive work-up for this' u; s4 P2 D% ~4 a
child. Given the widespread and easy availability of
1 V4 e/ m4 S8 C7 t3 j; \testosterone gel and cream, we believe this is proba-. u8 i' l8 z8 x1 y, b# [6 P9 c
bly more common than the rare case report in the% R, A: j+ E4 v0 m7 z, ]3 u3 G
literature.4
7 J9 ~: k! p4 Y# `) b% p0 aPatient Report
; H/ w" C& I% jA 16-month-old white child was referred to the
! a7 I% f0 {( I; G9 Vendocrine clinic by his pediatrician with the concern
0 @4 r% E; ^" B5 kof early sexual development. His mother noticed
$ F5 i. ?  _% c5 }* x# p  ]light colored pubic hair development when he was
/ r4 C  x$ z' I8 f* ?2 X# _" b* E' [5 `From the 1Division of Pediatric Endocrinology, 2University of
# u0 ^. h! S; _- N$ j, cSouth Alabama Medical Center, Mobile, Alabama.
4 R+ b) ?; h" k% u; JAddress correspondence to: Samar K. Bhowmick, MD, FACE,
+ z1 Q3 u4 w, e: q8 t: x! `Professor of Pediatrics, University of South Alabama, College of0 E5 b) S  U9 J) S: B
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;' I7 D9 I, @1 R; k5 a3 J) p8 J
e-mail: [email protected].
5 l% S$ S" x/ y1 H! M6 w3 h4 Eabout 6 to 7 months old, which progressively became
0 H& p* q, z* P0 @% Qdarker. She was also concerned about the enlarge-8 l* L5 ^8 O. {/ r3 ?
ment of his penis and frequent erections. The child7 N, e3 J& p  a( y9 O- b
was the product of a full-term normal delivery, with' G- P3 N- \. k. V
a birth weight of 7 lb 14 oz, and birth length of! U" m# w$ }8 j3 L
20 inches. He was breast-fed throughout the first year. V7 E, W+ X# ^( d4 ]# }; b2 \% U
of life and was still receiving breast milk along with
0 Q9 {% D% W- b0 S5 Lsolid food. He had no hospitalizations or surgery,
  o/ Q) }7 w& @and his psychosocial and psychomotor development
  m4 `0 Y6 k0 X) U# w1 k) f5 h* rwas age appropriate.) p6 }9 A5 L$ X* X7 k* P+ W
The family history was remarkable for the father," |+ z# r/ R2 H. T( g& B" P
who was diagnosed with hypothyroidism at age 16,
1 @5 ?* |9 A! e  wwhich was treated with thyroxine. The father’s0 P! q7 K, K: S' K+ s! j6 v$ F+ `  ]
height was 6 feet, and he went through a somewhat# s" S8 v( n; f8 q" V4 {  p  o
early puberty and had stopped growing by age 14.2 G: C$ H+ A* f8 C7 J  N
The father denied taking any other medication. The) m- g2 U6 s. J8 M
child’s mother was in good health. Her menarche: z$ m  q# M  j9 _
was at 11 years of age, and her height was at 5 feet' X$ W8 [& O2 R  C0 @) E+ r/ k9 n' D
5 inches. There was no other family history of pre-0 }1 ]2 U" N/ R: q& s* [% l: R
cocious sexual development in the first-degree rela-0 l6 L0 e+ s5 D8 @, _3 b6 W
tives. There were no siblings.
; C; z* m+ L, [- r1 `+ LPhysical Examination
' Z5 a5 x+ Z5 m* _/ XThe physical examination revealed a very active,5 S! |7 ^& h: Q
playful, and healthy boy. The vital signs documented0 W/ P" z1 O0 k
a blood pressure of 85/50 mm Hg, his length was
8 c6 U7 a2 E+ R' d( [3 g, ]1 E" O90 cm (>97th percentile), and his weight was 14.4 kg
( o! W  u% U6 i( Q8 X- U) C(also >97th percentile). The observed yearly growth0 K' k! A- l  C% X6 H4 i
velocity was 30 cm (12 inches). The examination of
/ D4 V- v% R/ r0 sthe neck revealed no thyroid enlargement.
& M4 G1 L* V! @5 }5 n) `- |3 SThe genitourinary examination was remarkable for
2 ~6 j: h' j; Genlargement of the penis, with a stretched length of3 [& }# i; S  r8 W% O0 o
8 cm and a width of 2 cm. The glans penis was very well
& y2 Q/ V. E( Y' y" _- S0 odeveloped. The pubic hair was Tanner II, mostly around& ?( h- U8 z6 `! |1 C$ _' N2 D/ a
540
* x4 I3 X" {3 v& uat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
% z0 c5 b6 l% N. i* w3 X* g2 vthe base of the phallus and was dark and curled. The0 R! T. }: u7 N1 f
testicular volume was prepubertal at 2 mL each.8 n  }# K: J4 C2 N$ ~  t  m
The skin was moist and smooth and somewhat
. S! g# B) b5 ]4 ^  ]6 eoily. No axillary hair was noted. There were no% u: N. e: B: O$ d! P9 A: _  W
abnormal skin pigmentations or café-au-lait spots.
/ R( ]$ j. [1 z3 K& ^5 c9 p0 UNeurologic evaluation showed deep tendon reflex 2+
9 g  D/ F3 c, R1 }) I+ Tbilateral and symmetrical. There was no suggestion' f: n( w+ N. e; _: T
of papilledema.
( n6 r% H1 {, [6 l& X9 V  cLaboratory Evaluation+ q5 p3 \6 f  ~, K3 b" M
The bone age was consistent with 28 months by: a- }2 n, X' v" a3 l
using the standard of Greulich and Pyle at a chrono-
/ T, L8 x4 M) Q! r1 R$ ulogic age of 16 months (advanced).5 Chromosomal
1 O, }- |! ~/ ~( L* Y) i, pkaryotype was 46XY. The thyroid function test
' d4 `5 b8 S1 Ushowed a free T4 of 1.69 ng/dL, and thyroid stimu-
7 p4 V* l. T' w3 g5 ulating hormone level was 1.3 µIU/mL (both normal).
: p9 G. T0 s$ a4 q8 n! DThe concentrations of serum electrolytes, blood$ H+ _: T" y5 @9 P0 k& Y
urea nitrogen, creatinine, and calcium all were
. j- V+ R$ t, m, w2 awithin normal range for his age. The concentration
: b  d  y6 A" R1 W0 G( B4 `$ Qof serum 17-hydroxyprogesterone was 16 ng/dL+ {1 L  n% a& W5 Z' y4 {
(normal, 3 to 90 ng/dL), androstenedione was 20) B( ?3 ?2 A! z# k6 M' D7 I/ ~+ n
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-
4 ]; i- G+ s) q5 bterone was 38 ng/dL (normal, 50 to 760 ng/dL),
# H& S( h7 w4 @' b( [/ ]4 W) Q: k! @desoxycorticosterone was 4.3 ng/dL (normal, 7 to
, ?* F! k+ @& k, ]2 v49ng/dL), 11-desoxycortisol (specific compound S)( v6 `. f# O7 G, M8 x
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-9 m6 g! b$ A0 q- {' d
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total
6 d( }4 j; G' z9 dtestosterone was 60 ng/dL (normal <3 to 10 ng/dL),
" E( ]; p0 ?5 `) A: ?- Sand β-human chorionic gonadotropin was less than
0 b; c/ u5 U' B. E$ D  R5 mIU/mL (normal <5 mIU/mL). Serum follicular
  A% ^- c" S  a9 h6 z# Fstimulating hormone and leuteinizing hormone
7 z$ k# t, Z+ Z: H+ _concentrations were less than 0.05 mIU/mL
/ v7 z5 k" g' ?: z(prepubertal).7 o8 B/ }4 t) {, C6 @  I0 Y
The parents were notified about the laboratory
9 U( N& D% m& I: y% {results and were informed that all of the tests were; X2 C( m4 [  p8 a! {% i! }$ v* D
normal except the testosterone level was high. The
  ~6 U# F; _, e9 l. u6 Sfollow-up visit was arranged within a few weeks to+ o7 x1 X: R/ C4 ~
obtain testicular and abdominal sonograms; how-
1 \0 t3 C: X4 Z/ l) y" aever, the family did not return for 4 months.
1 f' h- T9 [! _2 @Physical examination at this time revealed that the
0 R& |) M% O- J* t2 ~child had grown 2.5 cm in 4 months and had gained! V, x& ~. w& a- k* H) M) a
2 kg of weight. Physical examination remained8 W) ]7 g( \$ i7 D# P4 v3 ^
unchanged. Surprisingly, the pubic hair almost com-8 C, P7 V6 [. q& |( P! X1 U' Z
pletely disappeared except for a few vellous hairs at! q0 P; ^) H0 P7 f' [4 L
the base of the phallus. Testicular volume was still 2
0 {2 S: m' C3 amL, and the size of the penis remained unchanged.
8 H' q2 s; w. Q: L2 yThe mother also said that the boy was no longer hav-- Q1 [( q- I9 e
ing frequent erections.: z; X3 g6 ^2 X( a. D
Both parents were again questioned about use of8 b4 R! V/ ]' g2 o8 k
any ointment/creams that they may have applied to
7 t, [* Y# V9 Y. _the child’s skin. This time the father admitted the
9 C* b' ]0 p0 q7 D5 eTopical Testosterone Exposure / Bhowmick et al 541
5 M) v' W( v/ V/ m2 S7 |use of testosterone gel twice daily that he was apply-
. j3 U- Q" O0 m' L9 p$ ?: Ting over his own shoulders, chest, and back area for
- r' Q$ y% B' p& \) Pa year. The father also revealed he was embarrassed) H% [' r1 J4 K: h! @
to disclose that he was using a testosterone gel pre-9 \6 Y. ^* n6 J
scribed by his family physician for decreased libido  o4 W: X7 A" @" @8 x
secondary to depression.
7 x. ^  B& ?- Q# P1 V4 j2 HThe child slept in the same bed with parents.2 r( K; h! p: r4 X
The father would hug the baby and hold him on his, B: s8 s, P, Q& H4 Q2 G
chest for a considerable period of time, causing sig-" U* I5 R6 A! x1 u
nificant bare skin contact between baby and father.+ q! N8 N2 f; N; {8 y7 x# {( h
The father also admitted that after the phone call,# g/ w5 }* V, S/ b8 Z- K) K4 P
when he learned the testosterone level in the baby
1 Y* q7 p# n/ j, H. t% }# u' awas high, he then read the product information
  J+ T; c) d, D; y( [packet and concluded that it was most likely the rea-; t8 L+ Y; b4 U) l$ D! G, R  ?
son for the child’s virilization. At that time, they
3 h+ q8 d5 N0 `2 u6 q" ndecided to put the baby in a separate bed, and the
8 l9 g5 p: @# y% Xfather was not hugging him with bare skin and had/ |5 C2 ?7 |8 S' n- n6 V
been using protective clothing. A repeat testosterone
: `$ }! Q6 N0 @' s4 {8 @test was ordered, but the family did not go to the2 r8 }2 \! {3 [9 s7 Y! F
laboratory to obtain the test.
$ J  ]; l& }4 G7 SDiscussion# q, F; j1 t) ~' X  @# L% J
Precocious puberty in boys is defined as secondary
  c9 d3 g0 x) }! w" r4 q0 K" k1 Ksexual development before 9 years of age.1,4/ D/ I# X7 V# [2 |
Precocious puberty is termed as central (true) when
, k, K3 x8 `8 _7 `; d/ W+ vit is caused by the premature activation of hypo-
& F% d7 o8 G4 h7 @  W# Ithalamic pituitary gonadal axis. CPP is more com-( o  W7 R6 }" D  W5 J0 n; i" z+ R
mon in girls than in boys.1,3 Most boys with CPP% B$ r9 e- J; ]7 g1 O/ O4 |
may have a central nervous system lesion that is/ q4 j/ }9 ]6 T. w0 g% u
responsible for the early activation of the hypothal-" b/ ?% z& Y  ]1 j0 c
amic pituitary gonadal axis.1-3 Thus, greater empha-* _' P- H' G' j) x' ~
sis has been given to neuroradiologic imaging in
6 l: E  k" ^  b$ R# hboys with precocious puberty. In addition to viril-# _) V0 E3 Z8 W+ B8 e9 F. H
ization, the clinical hallmark of CPP is the symmet-, Z# [1 t. p# g. E# z, z
rical testicular growth secondary to stimulation by
% Z( O7 H; x1 a1 qgonadotropins.1,37 |, p, o$ w8 s6 d/ t# l
Gonadotropin-independent peripheral preco-
4 [, a& n) d. ^cious puberty in boys also results from inappropriate
& F( V2 d. i9 j2 Kandrogenic stimulation from either endogenous or; e! Y: ]/ X0 D" F3 t( s' x$ Y6 K
exogenous sources, nonpituitary gonadotropin stim-
  {/ Y- L, J$ |; [. Sulation, and rare activating mutations.3 Virilizing# n6 u2 P- ~6 D( W
congenital adrenal hyperplasia producing excessive
) c/ N1 ^7 B) }9 e* f% kadrenal androgens is a common cause of precocious
2 X, ~* g  v2 L# M* cpuberty in boys.3,4. C& G6 c$ E( ]- o+ U6 r
The most common form of congenital adrenal2 g8 K. d. W1 B4 e* ~
hyperplasia is the 21-hydroxylase enzyme deficiency.
! j6 u5 @3 `9 K) U7 ?- v0 @The 11-β hydroxylase deficiency may also result in8 o  L2 q; O1 N
excessive adrenal androgen production, and rarely,/ H5 m" c* J1 q$ z$ n! q- _
an adrenal tumor may also cause adrenal androgen: d6 ^( [8 M. v* G, p' P
excess.1,3! D, W4 A  Q/ L# ^2 |8 B* S6 C
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from, a& a+ ]* [$ E
542 Clinical Pediatrics / Vol. 46, No. 6, July 2007
+ G3 i$ G6 ?: ZA unique entity of male-limited gonadotropin-
6 v6 D7 Y6 s/ B7 G: I2 @' Lindependent precocious puberty, which is also known- j8 s2 E) B6 z. U
as testotoxicosis, may cause precocious puberty at a! f% o1 C3 r. r; Y  W! `/ H9 v
very young age. The physical findings in these boys
8 Z8 Y" S1 p  Z( m3 D$ ]. a' swith this disorder are full pubertal development,
( s) P4 j4 C1 ~1 bincluding bilateral testicular growth, similar to boys
# \9 Y6 o3 D8 E3 x) \+ t- Pwith CPP. The gonadotropin levels in this disorder& z: V- m, V% [: y
are suppressed to prepubertal levels and do not show
* j. ]$ [1 d; h% z8 ?' N, Ipubertal response of gonadotropin after gonadotropin-
% u: L- O8 A3 I" mreleasing hormone stimulation. This is a sex-linked7 R  @' M! G1 l2 h  x
autosomal dominant disorder that affects only: u6 N; S9 r. s  P
males; therefore, other male members of the family
' H/ [6 f$ K$ [& j4 dmay have similar precocious puberty.3
% b, |2 g" t5 N: [2 |) o! MIn our patient, physical examination was incon-
6 d0 R; B5 D& ]sistent with true precocious puberty since his testi-( @/ v# t% F6 ~: f  F. q3 I
cles were prepubertal in size. However, testotoxicosis2 z! b2 ~9 P5 _/ m: m% ~4 Z& J1 @
was in the differential diagnosis because his father
# x1 W; d# L; K. {2 B: Tstarted puberty somewhat early, and occasionally,
& W: `: r2 B1 Z0 O7 Z6 gtesticular enlargement is not that evident in the
5 z. E7 \+ u* o' a1 y9 Q$ ]9 nbeginning of this process.1 In the absence of a neg-. u8 b, l/ i: c# o2 g0 Z. B
ative initial history of androgen exposure, our* |1 g8 U% E( y" I3 E" T- `
biggest concern was virilizing adrenal hyperplasia,( ]4 N& ~$ D- @) A1 Z
either 21-hydroxylase deficiency or 11-β hydroxylase
# W7 Z- {- z  }7 b# |deficiency. Those diagnoses were excluded by find-6 C$ y6 x1 r6 H
ing the normal level of adrenal steroids.
% o  ^. D) j+ v7 x/ `The diagnosis of exogenous androgens was strongly, p3 I" V5 x3 H, Y# w8 w5 A
suspected in a follow-up visit after 4 months because  I6 M  B: F/ v8 M8 |) O7 U1 K: @
the physical examination revealed the complete disap-+ }4 z2 `% s! R7 v! V
pearance of pubic hair, normal growth velocity, and
6 v0 }* h7 _  A$ ~7 k2 X+ b5 Edecreased erections. The father admitted using a testos-# H3 g+ h' J; ]
terone gel, which he concealed at first visit. He was
% L1 j1 k/ L  xusing it rather frequently, twice a day. The Physicians’- ]# m7 k& |" H; E
Desk Reference, or package insert of this product, gel or& c9 m7 e- U1 S) _1 c5 N5 |9 J6 m
cream, cautions about dermal testosterone transfer to! B8 |* v& [9 O( o
unprotected females through direct skin exposure.
3 O3 [" ]! x' C/ o$ U) n1 JSerum testosterone level was found to be 2 times the" j) b$ ?8 y% }) Y6 [: {
baseline value in those females who were exposed to
, t4 l! D! w  a/ S. U* W3 zeven 15 minutes of direct skin contact with their male! O3 u" `6 G( j) d# V* t4 t
partners.6 However, when a shirt covered the applica-9 ~' A7 B- V  e) d. w5 |" ~
tion site, this testosterone transfer was prevented.
: J& B6 I+ J, L0 d7 W/ ~3 j* iOur patient’s testosterone level was 60 ng/mL,6 D/ Z; B, y2 M! S# E
which was clearly high. Some studies suggest that
2 K/ i" z0 x! R# z* bdermal conversion of testosterone to dihydrotestos-
$ w! ?* V$ m- Q0 ^$ i6 c( s/ w6 h3 N3 Nterone, which is a more potent metabolite, is more0 o! p( d9 P; e1 F& o1 t, F
active in young children exposed to testosterone. Q3 t, `1 b4 P, v1 [3 J9 ~/ ^
exogenously7; however, we did not measure a dihy-
; g- \+ V, |4 f, P( fdrotestosterone level in our patient. In addition to
& t: w! P% I' A& {: avirilization, exposure to exogenous testosterone in( P) J/ [. v6 q) ?1 y+ j( k$ V
children results in an increase in growth velocity and
4 ^% G" z3 l" }1 p. e2 {" \advanced bone age, as seen in our patient.+ p1 G4 H7 \2 ~8 z
The long-term effect of androgen exposure during" k# B# w$ G- O7 B( L
early childhood on pubertal development and final
$ ?8 [; T  M; ^+ ^adult height are not fully known and always remain$ h2 m, n9 {3 o; t% t
a concern. Children treated with short-term testos-% }  `" Z* V3 z! r; e
terone injection or topical androgen may exhibit some5 a/ w" u3 _+ G% b- o, p6 j
acceleration of the skeletal maturation; however, after& v5 z8 a: Z! ~% u, g: d" F8 d9 C
cessation of treatment, the rate of bone maturation
& C% i' e  ^& c0 ?* Bdecelerates and gradually returns to normal.8,9
5 Y% C- F+ A- W7 [; z3 oThere are conflicting reports and controversy" t! Y; S+ ~2 T- P
over the effect of early androgen exposure on adult
; `# G9 c% i$ A4 C' Z& i) Fpenile length.10,11 Some reports suggest subnormal
6 Y5 V, o( y# N$ C( t: ?  C4 Qadult penile length, apparently because of downreg-3 h  @& a1 H3 m$ I7 }) x
ulation of androgen receptor number.10,12 However,
2 ]/ f9 s$ `9 }) d4 [! C: s* VSutherland et al13 did not find a correlation between( e& W5 O! h- y  [) K! z6 S
childhood testosterone exposure and reduced adult
6 G" d8 `& _+ O1 v; u  H/ Ipenile length in clinical studies.% G" @3 u3 B! g( [7 ]# q$ g. y
Nonetheless, we do not believe our patient is- H  y9 ~" h  s4 ?  G5 A
going to experience any of the untoward effects from4 K8 U5 Y7 M% T6 O- z* m9 A
testosterone exposure as mentioned earlier because
5 |# R5 m$ K, Athe exposure was not for a prolonged period of time.
- I% j+ r  B  G2 kAlthough the bone age was advanced at the time of  J" \5 j  F5 ?; Y8 M) L
diagnosis, the child had a normal growth velocity at( W7 A3 O, `1 A* j+ u
the follow-up visit. It is hoped that his final adult* ?5 F! X4 y; c) r
height will not be affected.5 G4 A- @+ I  ^8 B
Although rarely reported, the widespread avail-0 B" T% a: n  r, n; g9 ~1 M/ ^# f
ability of androgen products in our society may3 S& n& s. I8 e0 [7 C% q" V
indeed cause more virilization in male or female
- s6 u2 h& i6 Hchildren than one would realize. Exposure to andro-5 b$ z( M- L0 @+ ~+ d! w' M
gen products must be considered and specific ques-( r, ], X; q  [( V2 ]3 L
tioning about the use of a testosterone product or0 x* y3 z6 }5 e0 y5 q4 D& ]
gel should be asked of the family members during' q( Y+ {, B6 e5 ~* Q; }
the evaluation of any children who present with vir-
9 n4 e. x5 h) k$ W0 J! j/ ailization or peripheral precocious puberty. The diag-
; a7 j) }; l6 C8 D0 t  B4 jnosis can be established by just a few tests and by
& w$ V7 n) @( d- E2 V! P! }appropriate history. The inability to obtain such a
0 E2 }8 U0 i5 l' H; `history, or failure to ask the specific questions, may
# b0 D- W3 r% qresult in extensive, unnecessary, and expensive
# W2 R& ~, M% a% O) e' minvestigation. The primary care physician should be& J0 E* A" C. x8 @; ]9 k
aware of this fact, because most of these children* J$ X& J2 x* h4 Z4 I) H4 f
may initially present in their practice. The Physicians’
9 i" I. w! a! [7 ]( D/ R! mDesk Reference and package insert should also put a
0 [+ {) j, \1 o( d5 o' Hwarning about the virilizing effect on a male or: t7 c8 j2 N3 c, W/ O
female child who might come in contact with some-3 b6 w2 d. S' W5 z( u3 z
one using any of these products.6 j5 u% ^8 a' z. I4 {
References
' T/ B7 G! p( d- N1. Styne DM. The testes: disorder of sexual differentiation2 E) \2 b+ e5 n3 x( |! i& M6 |
and puberty in the male. In: Sperling MA, ed. Pediatric, ^/ A8 W2 S/ A8 H7 w3 H
Endocrinology. 2nd ed. Philadelphia, PA: WB Saunders;
- k9 T4 N9 `1 f4 j2002: 565-628.
/ u& a7 B5 i3 k2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious) F' v% [7 {. j6 ^
puberty in children with tumours of the suprasellar pineal
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女厕偷拍辅导班主任尿尿老师的逼很嫩还有一点
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4个什么样的?
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' W6 _1 {' a  J( P) p. w, ?0 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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