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Sexual Precocity in a 16-Month-Old
% ?1 u, h$ \8 \2 t4 aBoy Induced by Indirect Topical* y& z% t/ P5 n9 }
Exposure to Testosterone
) P( h4 _/ D1 T) ~( V% LSamar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,27 S+ g6 U0 ^, I. a# v4 G- _
and Kenneth R. Rettig, MD1# r: \0 x, j5 R
Clinical Pediatrics7 x) [. l$ C: u
Volume 46 Number 6
5 o/ J1 r8 O/ f2 |July 2007 540-543) D( ?/ A  u" n& n
© 2007 Sage Publications
6 u+ E( O( E" X- v: j" {# M10.1177/0009922806296651
5 j% \# m; ~9 F( R- e7 C6 }http://clp.sagepub.com- j) ?* ^" C  E" F6 ]  e. L
hosted at/ O2 y- C( A6 `& B8 Q& V( B" u9 D
http://online.sagepub.com
9 }' r8 O9 F# B6 W" P: L( VPrecocious puberty in boys, central or peripheral,
: s# L' _; g8 N: R) j' U8 pis a significant concern for physicians. Central
% S! o& T. h, }, P9 Aprecocious puberty (CPP), which is mediated& B: B% v6 W! {5 O2 Y
through the hypothalamic pituitary gonadal axis, has
# t3 j* @5 x* T: {a higher incidence of organic central nervous system
- K( C% I, Q- G* x# `/ Zlesions in boys.1,2 Virilization in boys, as manifested
) M% g; p- x, [6 j. H9 q8 e. Dby enlargement of the penis, development of pubic
/ d% F7 V( X7 Yhair, and facial acne without enlargement of testi-& Q  [) l6 q# y& m4 J
cles, suggests peripheral or pseudopuberty.1-3 We
) i! R. E- Q  f' Jreport a 16-month-old boy who presented with the; _3 H; c4 h; i/ o2 |$ C
enlargement of the phallus and pubic hair develop-' U, H7 ]* Q8 M8 u- J5 h
ment without testicular enlargement, which was due
& C+ S% E( {" J% |2 A2 rto the unintentional exposure to androgen gel used by
& o* h( @+ z1 \) p  f) Hthe father. The family initially concealed this infor-! V" z+ q3 P4 }3 p" M
mation, resulting in an extensive work-up for this
- |: v4 o% e& I' cchild. Given the widespread and easy availability of" k+ U& `( A- g. q/ q: E/ u% @; |
testosterone gel and cream, we believe this is proba-
" w, G- d* C4 g! r1 Dbly more common than the rare case report in the. _7 a3 u/ @  U
literature.40 Y! `! k$ f. W, f
Patient Report
6 {. [% ^( w0 @A 16-month-old white child was referred to the$ y; R5 l/ i" V4 l5 p! v$ V
endocrine clinic by his pediatrician with the concern
" l1 R+ ]" @' e8 @( P) Y9 yof early sexual development. His mother noticed
$ M: O) ]' H& L- e2 ~" }+ elight colored pubic hair development when he was: W; R" X3 m$ Y$ U3 w
From the 1Division of Pediatric Endocrinology, 2University of1 V: _# r5 q  V$ _5 }7 \% w
South Alabama Medical Center, Mobile, Alabama.
$ v1 B8 V# n4 Q( h" JAddress correspondence to: Samar K. Bhowmick, MD, FACE,: h% o/ w" E5 X# t& G! D. ]4 o
Professor of Pediatrics, University of South Alabama, College of7 P, J- `8 H, L9 R7 J: E
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;+ W0 ]7 `6 Z  r  `
e-mail: [email protected].
( F& Z& P$ l- kabout 6 to 7 months old, which progressively became
; J0 Q; |+ y( `6 `/ v! ]darker. She was also concerned about the enlarge-! ?& U' b9 T2 Z
ment of his penis and frequent erections. The child. H/ P0 L. u1 b
was the product of a full-term normal delivery, with; @, }" ?' J5 T9 S) @1 E$ G# {, N
a birth weight of 7 lb 14 oz, and birth length of; p/ c- n8 D" f. r
20 inches. He was breast-fed throughout the first year
. q6 t4 I0 {7 d$ B7 r- }: Cof life and was still receiving breast milk along with" I4 t; ]1 P# z2 M! Q/ `
solid food. He had no hospitalizations or surgery,  B5 K+ Z4 s; {1 U* M
and his psychosocial and psychomotor development
0 j+ k7 v) @+ t: Twas age appropriate.
9 C/ S# T7 ^+ ~+ o! PThe family history was remarkable for the father,
# @. s3 t1 e6 G2 [0 y$ q3 V' p% bwho was diagnosed with hypothyroidism at age 16,$ U) U7 J; @' {* s* l
which was treated with thyroxine. The father’s
+ E; ?! ]7 \% {2 ?( O; Z# Aheight was 6 feet, and he went through a somewhat, e$ B/ H9 X- j7 d) L
early puberty and had stopped growing by age 14.1 m# D- d) y/ N8 R  s$ X
The father denied taking any other medication. The
/ Y' A) k2 N& f6 j9 g" f. P5 S) Qchild’s mother was in good health. Her menarche
- n: `- U2 x/ X0 v7 Y' \, Y  X3 ~was at 11 years of age, and her height was at 5 feet
% W/ S( N# G( O1 p8 n* \5 inches. There was no other family history of pre-
/ b/ z5 ]# c5 K, scocious sexual development in the first-degree rela-
- |1 _' J% w5 [- }. Rtives. There were no siblings.
( {2 K, q& F6 W; R/ B) ePhysical Examination# D- {. v7 c9 P  P! y
The physical examination revealed a very active,
# p/ k% X9 ~" h" Splayful, and healthy boy. The vital signs documented' a1 d6 g0 g: d- C8 {
a blood pressure of 85/50 mm Hg, his length was
4 q8 d8 U  k7 ]6 p; k5 H90 cm (>97th percentile), and his weight was 14.4 kg+ J0 b% Y" @6 {* O
(also >97th percentile). The observed yearly growth! s# g" O5 [) \8 V1 F/ [' q
velocity was 30 cm (12 inches). The examination of
; o: X% s, s) ^the neck revealed no thyroid enlargement.8 q/ v+ M+ h2 i
The genitourinary examination was remarkable for
  l0 X1 ?# K7 w% a) X" Denlargement of the penis, with a stretched length of
& j) w$ X  R# Q: _8 cm and a width of 2 cm. The glans penis was very well/ U% F  q$ d/ \* w9 }
developed. The pubic hair was Tanner II, mostly around8 l$ x& M' _$ Z7 q, H( S6 U: A
540
( B( T/ h- S( Q9 X+ g5 d: \8 |0 eat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from  M. ~8 ^% H+ Q4 M7 L. ~$ o0 ^6 b: t1 ]
the base of the phallus and was dark and curled. The% U0 Q) |( N$ f7 Y
testicular volume was prepubertal at 2 mL each.$ J9 F* y  G( H$ ~% Y* M# P
The skin was moist and smooth and somewhat. ^, R6 e# q( p
oily. No axillary hair was noted. There were no% l/ f5 [5 T1 p1 U" e" E) r
abnormal skin pigmentations or café-au-lait spots.! Y( M; l" j5 m+ R0 v1 B
Neurologic evaluation showed deep tendon reflex 2+2 t- D  P4 {- Q
bilateral and symmetrical. There was no suggestion. k! K8 k% H! V
of papilledema.
" R+ l9 V3 G/ j) |Laboratory Evaluation
$ T" L; k$ b& W; n8 \9 vThe bone age was consistent with 28 months by
% a: V% P9 z, P) Xusing the standard of Greulich and Pyle at a chrono-5 I# n3 c  |$ ]$ @3 n) p1 u
logic age of 16 months (advanced).5 Chromosomal4 c  Y( q) d2 e1 C6 V; e% G& P9 _& f
karyotype was 46XY. The thyroid function test
1 P# u9 v1 k$ k4 \) G4 Z$ ishowed a free T4 of 1.69 ng/dL, and thyroid stimu-  I' B. m) G) J* ?) U! ?- t! |
lating hormone level was 1.3 µIU/mL (both normal).
) c% G& f7 S6 @) r4 C' pThe concentrations of serum electrolytes, blood+ P6 w$ p# b9 k. M: k( ?$ T
urea nitrogen, creatinine, and calcium all were/ D5 P) [; V5 [; T0 K) G/ I
within normal range for his age. The concentration
* h1 ]) b! `1 X1 M& \of serum 17-hydroxyprogesterone was 16 ng/dL8 D6 m$ Q" ~  a6 {' `. Y: ^
(normal, 3 to 90 ng/dL), androstenedione was 203 j6 R! O: Y/ H/ f' I) o
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-' J' B5 j2 ]" }+ t" R2 l/ [4 V
terone was 38 ng/dL (normal, 50 to 760 ng/dL),
7 s: N9 _0 e- i0 T$ }desoxycorticosterone was 4.3 ng/dL (normal, 7 to4 D  P0 u" c/ r! x4 X; g& {- E& @
49ng/dL), 11-desoxycortisol (specific compound S)/ @* z) ~; x# M( W( b# H- w' }9 S
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-# m! u1 Z4 W% ^. I
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total! L- V' i0 t5 Q' H) \" b
testosterone was 60 ng/dL (normal <3 to 10 ng/dL),
5 X- k/ G: a5 b/ Iand β-human chorionic gonadotropin was less than
/ O, m. ^. [! S' [5 mIU/mL (normal <5 mIU/mL). Serum follicular) [% L! I% l7 ]' K6 M6 G/ R
stimulating hormone and leuteinizing hormone4 F. N( E9 b) Y. B
concentrations were less than 0.05 mIU/mL$ y5 ?# q4 Y% p# @" I/ q$ `
(prepubertal).
9 C6 F% s  J2 N1 @3 ?The parents were notified about the laboratory, D$ Y% V9 W9 a, _
results and were informed that all of the tests were
8 k- T% ?5 p' R8 Q& [6 l/ {normal except the testosterone level was high. The% q1 u- K5 w1 R6 p/ d4 X2 w
follow-up visit was arranged within a few weeks to5 }, ~2 F6 r# k/ ^
obtain testicular and abdominal sonograms; how-0 M. Z( j) M3 U2 T1 |* X3 Q
ever, the family did not return for 4 months.
# }3 D- S: m9 A, Y5 r6 y& ePhysical examination at this time revealed that the! y; [; H5 `) h% X+ F- [; E! n7 M
child had grown 2.5 cm in 4 months and had gained
2 A7 K/ t& t3 z2 kg of weight. Physical examination remained/ e. y8 Y, \/ {' Q+ W
unchanged. Surprisingly, the pubic hair almost com-# q% H: L! O6 |" \2 c' @% B
pletely disappeared except for a few vellous hairs at$ i# x  j3 K2 ]7 b. O' K5 k
the base of the phallus. Testicular volume was still 2
  `" [8 x: S& \7 M8 q* d' YmL, and the size of the penis remained unchanged.
. x4 X2 r3 P( T8 BThe mother also said that the boy was no longer hav-0 k. C, o- V. L4 B& M/ x8 ^! E
ing frequent erections.
# \) O! h% a7 B/ e- kBoth parents were again questioned about use of! c* g1 K! V) [- X0 t: G
any ointment/creams that they may have applied to0 K5 c% B, e, c% C
the child’s skin. This time the father admitted the# r3 n9 O1 T9 A
Topical Testosterone Exposure / Bhowmick et al 541' [; v5 Y; ?" a+ [. ]
use of testosterone gel twice daily that he was apply-' Y0 _& c/ e$ v$ \/ A5 Q$ T
ing over his own shoulders, chest, and back area for' i  B% x, m$ ~% d$ V
a year. The father also revealed he was embarrassed( o) `: |5 ]! r, ^8 y
to disclose that he was using a testosterone gel pre-% ?7 Y* d% A$ z6 S9 C4 A& I
scribed by his family physician for decreased libido
$ o8 U5 x0 b  f, dsecondary to depression.' h" e: i  v$ y) B+ h% ~
The child slept in the same bed with parents.+ z/ D% w! C" m7 `
The father would hug the baby and hold him on his
; @. y4 S* m. v" K2 [chest for a considerable period of time, causing sig-6 v  |) \( ^9 j* i2 F
nificant bare skin contact between baby and father.
: g5 {! P) r: ]! t2 i4 L5 dThe father also admitted that after the phone call,' }; W# a9 g3 u8 H8 K
when he learned the testosterone level in the baby- N3 ~0 Y' p8 D& V% `0 X1 i
was high, he then read the product information( V4 D. n6 z/ L0 {
packet and concluded that it was most likely the rea-$ y' V, l4 e5 z& V( Z7 q5 ~- t) N
son for the child’s virilization. At that time, they# t: F- @! D& a- Q  o% g
decided to put the baby in a separate bed, and the9 Q1 d' X; B, B* c) t
father was not hugging him with bare skin and had. Y% c; [6 D3 l
been using protective clothing. A repeat testosterone
3 i# N7 a' k, ~7 Itest was ordered, but the family did not go to the
4 u7 Y: R$ M$ b2 S0 _7 g+ J- dlaboratory to obtain the test.
) |- a0 n' u; F1 u2 |( k9 ZDiscussion4 w! t; }% P0 H3 ?; ~9 {
Precocious puberty in boys is defined as secondary5 E& o* @. }/ H! Y% u
sexual development before 9 years of age.1,4
; R5 [! s4 O4 J; ^Precocious puberty is termed as central (true) when& H& l3 x% I- w
it is caused by the premature activation of hypo-' k; I5 S# a( L7 O3 ?- I2 P
thalamic pituitary gonadal axis. CPP is more com-
  Y3 ]6 I" w4 ]8 l% I' cmon in girls than in boys.1,3 Most boys with CPP
) H. N5 g6 f/ w% |! U$ gmay have a central nervous system lesion that is
) L0 T% u8 E/ v1 H1 h1 {+ C. yresponsible for the early activation of the hypothal-
5 r# G( P/ w% j, ~5 {7 Zamic pituitary gonadal axis.1-3 Thus, greater empha-& |1 c) O- F: H* L* [6 x
sis has been given to neuroradiologic imaging in- _* T4 T2 y1 w) [
boys with precocious puberty. In addition to viril-
; i: P/ K! ^8 F- h2 t; m8 Tization, the clinical hallmark of CPP is the symmet-
& W. e  @* L1 W% c  Crical testicular growth secondary to stimulation by3 c4 A3 p( D- w" X  Z& m
gonadotropins.1,3
' g. j, r. x/ e( XGonadotropin-independent peripheral preco-  a( }$ i. S! j& Q& @
cious puberty in boys also results from inappropriate
: Q% T" F5 K! b* o6 ?7 Vandrogenic stimulation from either endogenous or
4 i8 s0 ^& D& M7 _9 j2 B5 rexogenous sources, nonpituitary gonadotropin stim-; c; u  z+ h1 z2 |
ulation, and rare activating mutations.3 Virilizing: k1 w% Y# V7 l( r4 F' e
congenital adrenal hyperplasia producing excessive
2 J3 y* W4 k( Q9 r. P! eadrenal androgens is a common cause of precocious/ [7 Z" y# @# W
puberty in boys.3,48 |  s4 n) D' O9 F8 P0 {
The most common form of congenital adrenal  P% K/ R" K$ y7 Y
hyperplasia is the 21-hydroxylase enzyme deficiency." T" P+ g7 r) T8 h- d9 R
The 11-β hydroxylase deficiency may also result in0 V$ J% |3 Z$ ?) D
excessive adrenal androgen production, and rarely,
6 _9 G5 {* z* }8 dan adrenal tumor may also cause adrenal androgen
' |1 C: [4 i- w# F, n! P0 N# lexcess.1,3
$ i; P1 C$ K+ \$ l. bat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from4 R! t+ q* c8 }. p6 t! f9 B2 M6 d
542 Clinical Pediatrics / Vol. 46, No. 6, July 2007
; R1 V& O/ O7 k5 O7 HA unique entity of male-limited gonadotropin-0 g5 B2 g& R) v5 g0 T
independent precocious puberty, which is also known
( I/ v( A  t; C- M  ^. B: ]as testotoxicosis, may cause precocious puberty at a
" p, q" q5 S( m/ {' r' ~very young age. The physical findings in these boys
- `) B% C5 D' m: `% Gwith this disorder are full pubertal development,
4 e$ U* t1 o: }- x4 sincluding bilateral testicular growth, similar to boys, `- X5 H6 n7 K2 {! m, h6 w
with CPP. The gonadotropin levels in this disorder
1 q% C2 w) d3 a' ^are suppressed to prepubertal levels and do not show
0 |2 N7 b- f9 U$ rpubertal response of gonadotropin after gonadotropin-0 Y! I5 e7 O# N; h/ v- K% v
releasing hormone stimulation. This is a sex-linked
% M1 E, |: U7 O4 ^autosomal dominant disorder that affects only3 x7 V: y* F  R# R7 X' S
males; therefore, other male members of the family7 j/ D% h% ^3 e+ x
may have similar precocious puberty.3
" \& {# d- k! y4 j! PIn our patient, physical examination was incon-  {. @! u. l4 S# i1 p; j! A3 I& P
sistent with true precocious puberty since his testi-7 R1 z( a/ k" L/ J# e5 |
cles were prepubertal in size. However, testotoxicosis
8 s& \- a7 V1 S3 {/ Wwas in the differential diagnosis because his father. H; k) ^/ W* ~: C- V
started puberty somewhat early, and occasionally,% d$ x5 W) w( @. y# w, i
testicular enlargement is not that evident in the7 C' ^  e9 {7 M1 n( k# j
beginning of this process.1 In the absence of a neg-
0 j/ I0 t; a+ G" Q0 F, C9 ]ative initial history of androgen exposure, our
( ]: x6 H/ b& r7 Nbiggest concern was virilizing adrenal hyperplasia,
0 F: |7 l5 A: e3 i" ]- `0 @either 21-hydroxylase deficiency or 11-β hydroxylase
+ u( ]! g5 W+ E4 m, ?8 E8 O& Zdeficiency. Those diagnoses were excluded by find-
5 J1 O% v' o8 X  P# A% o' \7 `  i% ning the normal level of adrenal steroids.
- ~3 S# J1 x& e5 W% x* mThe diagnosis of exogenous androgens was strongly! B3 g0 T# P# M% s0 g# r
suspected in a follow-up visit after 4 months because. R: M) _, ^. A0 o; y/ J4 l  y
the physical examination revealed the complete disap-/ s+ E$ Q6 O* q
pearance of pubic hair, normal growth velocity, and
3 H* _# g/ }5 q7 y2 |decreased erections. The father admitted using a testos-: A% C) V9 s' F
terone gel, which he concealed at first visit. He was
- v/ R  I. @: G& p& b% \( ]  Eusing it rather frequently, twice a day. The Physicians’
2 l  t/ J+ b! f8 w0 {, WDesk Reference, or package insert of this product, gel or
0 T1 b4 v, }9 |& B! ]) m9 X0 k1 Ncream, cautions about dermal testosterone transfer to6 L* `% T& ?2 y
unprotected females through direct skin exposure.$ H. x$ a1 e4 Y# r: ~
Serum testosterone level was found to be 2 times the
: {/ K! R- k9 E+ lbaseline value in those females who were exposed to
& f$ j4 M; L; B! ^5 ^. h  geven 15 minutes of direct skin contact with their male
& Q/ f& |- S/ J' Z  C) ^# l' {partners.6 However, when a shirt covered the applica-8 `+ i: I, S6 L; U- H) w3 E3 a
tion site, this testosterone transfer was prevented.6 Q% v- N' Z1 J& ~2 v: w! \* V( I
Our patient’s testosterone level was 60 ng/mL,0 Z2 X0 c) q) c& K) \+ e
which was clearly high. Some studies suggest that& ~% l+ L( ]- p. a6 Y1 Q! n# {2 |
dermal conversion of testosterone to dihydrotestos-
) O, f# J# F7 @" q  A4 g% _terone, which is a more potent metabolite, is more
0 s0 X  u) d1 t% kactive in young children exposed to testosterone
2 t7 J+ N$ m% S" }" kexogenously7; however, we did not measure a dihy-
3 B' o$ V( x1 v- F% [; S" qdrotestosterone level in our patient. In addition to
/ q7 g+ H( W+ X: L  s, fvirilization, exposure to exogenous testosterone in; r. @6 @( q8 ]' y8 {8 v2 d
children results in an increase in growth velocity and
7 t5 A7 t2 j  P1 S# |advanced bone age, as seen in our patient.
& ^5 g2 w/ }! M& Q) i' ]The long-term effect of androgen exposure during
4 g) ?8 v; A* s1 dearly childhood on pubertal development and final
2 w: p, h2 Z8 f5 y" ~! Radult height are not fully known and always remain
2 o+ w  M& d5 _6 V' f4 \. r; J0 m  A7 Ga concern. Children treated with short-term testos-" k$ T0 m/ x; A7 r2 n9 }
terone injection or topical androgen may exhibit some$ j) C9 W& A- R
acceleration of the skeletal maturation; however, after. [' I) F& @8 a1 N1 N
cessation of treatment, the rate of bone maturation7 z* K" c1 S8 i- `; Q, x
decelerates and gradually returns to normal.8,9
& a4 k( G7 J" G- t  TThere are conflicting reports and controversy
  f1 Y/ b, F* j+ `$ N6 ~6 k' ?/ Fover the effect of early androgen exposure on adult
: [- X9 A+ B" Y0 b4 u  M1 epenile length.10,11 Some reports suggest subnormal8 S: Q4 v& W$ }* T( s9 Z3 R7 }$ }& }
adult penile length, apparently because of downreg-
, P5 y( k! z; L% Aulation of androgen receptor number.10,12 However,6 f3 l# O  P8 r! K: b
Sutherland et al13 did not find a correlation between
8 N9 j: P4 v1 Qchildhood testosterone exposure and reduced adult
1 [8 V" M6 G3 o0 f  k3 C- tpenile length in clinical studies.
$ {+ i  {+ [" \3 `2 ]2 iNonetheless, we do not believe our patient is0 H! W" F5 @/ ]# v" u: ^
going to experience any of the untoward effects from
# f( M3 H; k6 U) f8 g# j0 n8 Ntestosterone exposure as mentioned earlier because: K6 `. n4 `: a/ l' e
the exposure was not for a prolonged period of time.* T% a+ l6 N0 E" M$ h
Although the bone age was advanced at the time of
. g3 X- P3 O3 z+ N+ Tdiagnosis, the child had a normal growth velocity at
! h6 Q- ]: c3 i0 ^  hthe follow-up visit. It is hoped that his final adult
, Q+ r* w. I% E9 N. S1 theight will not be affected.- |+ }$ y, h2 M8 v0 w9 r/ O
Although rarely reported, the widespread avail-: h3 }- g% y/ D; _
ability of androgen products in our society may6 R  ?6 S/ \; c; S
indeed cause more virilization in male or female
0 z) {' |; r, I  Echildren than one would realize. Exposure to andro-
8 O/ T. e" A/ v- s) g9 sgen products must be considered and specific ques-
$ S8 y, Z  @. Y6 h  U$ ztioning about the use of a testosterone product or% S0 t& _. I* w  H1 n
gel should be asked of the family members during, i& w+ }+ e  [1 d6 J
the evaluation of any children who present with vir-; |0 m8 T2 B& Z
ilization or peripheral precocious puberty. The diag-
& k& t' E5 B5 i! ]9 f# d7 Xnosis can be established by just a few tests and by
9 Q% c3 ]8 U  yappropriate history. The inability to obtain such a! |8 S$ X$ U$ f' \1 q) ]9 j: E
history, or failure to ask the specific questions, may* \! s) w: A  Y, C' z
result in extensive, unnecessary, and expensive  B5 I5 {# f! O& b! S( {
investigation. The primary care physician should be2 [7 g6 L3 X% F, ^0 }/ |' x! N
aware of this fact, because most of these children
2 g9 p: d3 d$ Pmay initially present in their practice. The Physicians’( U9 E9 ]) Y8 U6 Z& O
Desk Reference and package insert should also put a" _5 T: [% M) i0 c. @7 M
warning about the virilizing effect on a male or
2 Y, a: F7 m7 r: R# Y9 r7 [4 Kfemale child who might come in contact with some-7 b3 i6 i' Z7 u' R* D! s( o
one using any of these products.3 ~% U6 x4 R$ A4 l
References
% ~; X  ^( m+ B5 I6 f6 [- K. h% j1. Styne DM. The testes: disorder of sexual differentiation
$ b; i- L5 D- n8 F) f! p  Uand puberty in the male. In: Sperling MA, ed. Pediatric
6 h5 ^9 I! g0 s. u; q% ^4 [' iEndocrinology. 2nd ed. Philadelphia, PA: WB Saunders;. X$ f! n+ R8 ^) p: y0 v
2002: 565-628.9 R, _. c2 h& k6 b1 B  g, N; N1 [
2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious8 t2 H# B8 H, H' Y- Z$ E  a7 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-Old% L/ L! o9 p# k' X0 S* D# y6 Z
Boy Induced by Indirect Topical. p/ P; G1 ~/ ]" z" l6 S
Exposure to Testosterone
2 H4 |$ |8 ?: A1 X2 {* H" K/ R9 M% zSamar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,2
) I: B% F5 C1 gand Kenneth R. Rettig, MD1  {& \7 t/ p; r% Y5 J/ M# e8 Y
Clinical Pediatrics$ g7 Z" h8 w& \4 m/ B3 S
Volume 46 Number 60 y8 f+ {, I  |
July 2007 540-543
6 @( v/ i# T! T9 H© 2007 Sage Publications
. U) V. J/ v# R4 K+ n# E1 p* C10.1177/00099228062966518 T2 R" \/ ^7 T. |  L
http://clp.sagepub.com
; E2 b0 ^9 D- Z# zhosted at
0 O3 d+ ]) V6 T  d# W4 Ohttp://online.sagepub.com
: @, J3 d0 T1 u- hPrecocious puberty in boys, central or peripheral,: n# V8 o0 {; X( G3 I6 e2 v
is a significant concern for physicians. Central
- q* d, k, V5 X- O- Y) `& b" i# wprecocious puberty (CPP), which is mediated
$ B0 S3 G, j8 ~$ D/ vthrough the hypothalamic pituitary gonadal axis, has' k- U, w& G! c7 \2 L: \' X# r: _
a higher incidence of organic central nervous system
% A4 q% }2 C. J! X$ W+ Zlesions in boys.1,2 Virilization in boys, as manifested4 {) S' d! @( R/ c- k7 E
by enlargement of the penis, development of pubic
+ D% ^) N. y8 H0 @: x8 t/ ?. \hair, and facial acne without enlargement of testi-; B( D8 Q' \4 y+ O; a/ ?* t: b; u
cles, suggests peripheral or pseudopuberty.1-3 We
. S7 g. v8 T5 H. K! d- V- _report a 16-month-old boy who presented with the) `7 o3 I: u0 {& k
enlargement of the phallus and pubic hair develop-
9 N7 X5 S6 T0 I7 Dment without testicular enlargement, which was due; @0 t' y5 W6 E, z. ?
to the unintentional exposure to androgen gel used by
/ ]( q7 z3 N: M5 Q' F8 O) D7 Kthe father. The family initially concealed this infor-
5 J* `* E2 y% S3 K4 fmation, resulting in an extensive work-up for this
( i/ i. X/ M# F! ^; Xchild. Given the widespread and easy availability of1 h, C  H; ~" b% l8 r( a6 n
testosterone gel and cream, we believe this is proba-
+ W5 a, S) ~- ?. w* z% Nbly more common than the rare case report in the3 ?4 F7 ^$ w& ~
literature.4
8 f' a1 N4 c3 h, B0 d) hPatient Report
$ }% B7 V4 d' {  [* P3 l9 ?A 16-month-old white child was referred to the
% Q! ~/ S( o. X! V9 r, Jendocrine clinic by his pediatrician with the concern( b8 R6 A: K- G, p% T
of early sexual development. His mother noticed
9 j* ]) e, V0 g3 Vlight colored pubic hair development when he was
$ z/ Q  |4 W- ?! u, E, TFrom the 1Division of Pediatric Endocrinology, 2University of4 e$ E: m: I2 T/ `: j4 \, n
South Alabama Medical Center, Mobile, Alabama.
( u. o6 {8 B4 P9 o" aAddress correspondence to: Samar K. Bhowmick, MD, FACE,
1 M9 {$ P: U3 h3 O6 z2 ?, aProfessor of Pediatrics, University of South Alabama, College of
# H$ |7 B1 e; RMedicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;
6 U1 v- _# r1 ?" z- w2 O- L8 T/ ve-mail: [email protected].
" \; J/ Z/ v7 f% l0 ^: w; Eabout 6 to 7 months old, which progressively became. I- @, [* \2 d1 s
darker. She was also concerned about the enlarge-
* X$ T- a  [* q# m2 Mment of his penis and frequent erections. The child
  R. t  C2 [* h' k' H8 [3 Twas the product of a full-term normal delivery, with
" I+ ]( ?6 p% Na birth weight of 7 lb 14 oz, and birth length of
9 p$ y5 \( ?6 B8 }. G20 inches. He was breast-fed throughout the first year
2 {! j* k* [! i4 ]9 I' sof life and was still receiving breast milk along with
$ L: v- d  s) ^! isolid food. He had no hospitalizations or surgery,( [1 q! c5 M$ O/ b
and his psychosocial and psychomotor development
* R( i, R. Z6 v7 B/ gwas age appropriate.
( a# a/ o" H/ C' nThe family history was remarkable for the father,
: K" q9 @* w& ?. n$ w- Fwho was diagnosed with hypothyroidism at age 16,
7 H6 c/ b" k3 O5 Qwhich was treated with thyroxine. The father’s
5 ]# G" c, E" j. f) Iheight was 6 feet, and he went through a somewhat) {8 @9 |, {  G! F! F5 S% O( C7 u9 w6 L$ q
early puberty and had stopped growing by age 14.
* j/ N2 R  X) _9 |: K! f0 WThe father denied taking any other medication. The
7 K  e  @+ q9 q. I1 D$ I2 i0 Gchild’s mother was in good health. Her menarche
3 ^( ^9 r6 D4 ~8 {2 D. ?was at 11 years of age, and her height was at 5 feet
2 m. {( i2 C) d7 Q+ Y5 inches. There was no other family history of pre-
  P) L& v- j  b$ S) N8 n- Hcocious sexual development in the first-degree rela-6 e; m0 O* X! y, R
tives. There were no siblings.
  Y! p2 I0 h& S6 ^" W7 `Physical Examination
5 H4 S# w7 r9 R4 nThe physical examination revealed a very active,+ ~/ w3 k9 U. P0 i0 }
playful, and healthy boy. The vital signs documented& |! k& p$ `9 l" n, N5 v; ?8 v9 _
a blood pressure of 85/50 mm Hg, his length was( Z( _0 z3 m  `* H) J( ^
90 cm (>97th percentile), and his weight was 14.4 kg
& ?% N0 N0 k, W- Z* n(also >97th percentile). The observed yearly growth+ h: i8 V' `* y2 j; C
velocity was 30 cm (12 inches). The examination of
- P* K3 Q7 p* X1 X8 M8 hthe neck revealed no thyroid enlargement.
( l" I9 k+ b/ ]0 ~The genitourinary examination was remarkable for
$ w7 u) h& q+ r" i7 D5 tenlargement of the penis, with a stretched length of7 x- {; ~& S6 v) t( r* H
8 cm and a width of 2 cm. The glans penis was very well' _! r5 g6 t% i
developed. The pubic hair was Tanner II, mostly around
" k. Z9 S  l8 S2 {1 W7 O: r& k540; W2 G3 F8 u# G3 Z
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
  r/ \8 X2 b% c; x* x; I; q) \the base of the phallus and was dark and curled. The  _! N+ C: G8 t; p. }
testicular volume was prepubertal at 2 mL each.
1 l4 ^" S, }; G, z2 d* m: }The skin was moist and smooth and somewhat2 `$ V7 O) H2 ^) ~! C5 @, Q. F
oily. No axillary hair was noted. There were no
: X5 T% K2 d  H: f$ jabnormal skin pigmentations or café-au-lait spots.
8 E" p$ N( R7 UNeurologic evaluation showed deep tendon reflex 2+9 B. ?. W, n. V- k8 Y1 m
bilateral and symmetrical. There was no suggestion
% P% h6 c0 B# r% D3 n/ ]. P" h& @of papilledema.- o6 ]* K$ i* ^, v  n) ^6 `% w
Laboratory Evaluation
. M) }3 K$ U7 i+ \The bone age was consistent with 28 months by+ l7 \) O) E# V
using the standard of Greulich and Pyle at a chrono-
4 H+ @4 G2 S6 V6 m; R( slogic age of 16 months (advanced).5 Chromosomal8 m. L: x/ Y# l" W
karyotype was 46XY. The thyroid function test
7 Z, k5 m* g* M# c# Kshowed a free T4 of 1.69 ng/dL, and thyroid stimu-
  c' @. w3 ~5 v& V& ]! J; e' ^lating hormone level was 1.3 µIU/mL (both normal).
9 u7 R$ M. j9 |The concentrations of serum electrolytes, blood
. {( i7 B5 a3 P: e! Y/ d0 x% Lurea nitrogen, creatinine, and calcium all were
! [. y" J3 Y) u9 Awithin normal range for his age. The concentration2 X- ~  F1 u+ `2 m3 N: c$ t
of serum 17-hydroxyprogesterone was 16 ng/dL
( C& k( I6 \6 H$ [7 X* c# p(normal, 3 to 90 ng/dL), androstenedione was 20* V! ~% b9 y) m1 o
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-# s2 k& w8 U  q
terone was 38 ng/dL (normal, 50 to 760 ng/dL),/ C+ n8 x6 P* ]5 W- t
desoxycorticosterone was 4.3 ng/dL (normal, 7 to
+ q, A" z- _) P( s49ng/dL), 11-desoxycortisol (specific compound S)) T7 S- T% N" M* e7 L, G
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-5 O6 A' h' x6 g( z
tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total
, J+ w$ f" }; P* P; Ktestosterone was 60 ng/dL (normal <3 to 10 ng/dL),8 r/ ?) L: ]% p1 L! I
and β-human chorionic gonadotropin was less than
$ E- Q& U1 J2 E+ G5 mIU/mL (normal <5 mIU/mL). Serum follicular) F$ S4 o6 s4 A2 [5 e
stimulating hormone and leuteinizing hormone
$ `% O* B) ~$ \  Qconcentrations were less than 0.05 mIU/mL* l$ a  K1 B! O" q" t
(prepubertal).! b9 R: d9 A" v7 k1 s
The parents were notified about the laboratory% j% c  M6 ^# \, }' L/ l1 g
results and were informed that all of the tests were
' U& B  {% O5 u: z9 X: x  K7 n8 @normal except the testosterone level was high. The+ l! ?* k9 _5 f/ {
follow-up visit was arranged within a few weeks to3 N  G$ P/ ]8 o% K
obtain testicular and abdominal sonograms; how-
. V. t, H/ W7 y" o( _( Iever, the family did not return for 4 months.
* u- f4 o! c5 OPhysical examination at this time revealed that the: c$ b: C  [9 F
child had grown 2.5 cm in 4 months and had gained5 U7 S4 q, H  ^0 p- e0 _
2 kg of weight. Physical examination remained
5 t! F6 ^7 L, K2 gunchanged. Surprisingly, the pubic hair almost com-  v3 K. l/ e# W
pletely disappeared except for a few vellous hairs at
: }; j" N5 D/ Bthe base of the phallus. Testicular volume was still 2
* H! s8 F. s8 e6 V( L% l% ]' V& LmL, and the size of the penis remained unchanged.; ~% V8 Q/ V2 p- ^! S% J
The mother also said that the boy was no longer hav-
+ {& [8 u+ c) l* v$ A$ g' {ing frequent erections.1 B+ ?4 z+ b6 `" c
Both parents were again questioned about use of
& @( V5 y& F% H2 l0 W  Yany ointment/creams that they may have applied to
# a6 j  U  u. a# Z! Q6 xthe child’s skin. This time the father admitted the
0 J' V( }( U, y# KTopical Testosterone Exposure / Bhowmick et al 5417 f* R3 b; P- z/ G
use of testosterone gel twice daily that he was apply-! P7 n% n9 W" {+ c
ing over his own shoulders, chest, and back area for
7 G! _4 z: B9 H5 C8 oa year. The father also revealed he was embarrassed5 g% b2 k- i+ ~9 c7 @
to disclose that he was using a testosterone gel pre-( ?9 o+ y% n2 o2 j1 I
scribed by his family physician for decreased libido$ v! Y; j, Q/ {
secondary to depression.
# h2 K( j9 l1 c/ KThe child slept in the same bed with parents.$ P0 O, T3 x/ z. |
The father would hug the baby and hold him on his+ P- x; [- n) ^  P2 @1 m( _0 X
chest for a considerable period of time, causing sig-
3 U+ c8 F- u. W. a# `$ _: pnificant bare skin contact between baby and father.
) Q/ G$ [! ?! @9 x8 ]; oThe father also admitted that after the phone call,5 V) W8 g% c. w9 W. ^. g4 ^- l
when he learned the testosterone level in the baby9 Z1 a- c5 F1 r9 u0 a0 N
was high, he then read the product information
# a7 _0 ~6 r( H0 o# W. B5 ]packet and concluded that it was most likely the rea-
' J% I9 _1 N& {: fson for the child’s virilization. At that time, they
7 k+ d# ?6 y: M( e5 Y0 n3 Pdecided to put the baby in a separate bed, and the0 x1 |" \7 y+ k3 M# d, q
father was not hugging him with bare skin and had& X4 v0 s/ M$ v! I
been using protective clothing. A repeat testosterone
8 f$ Q, _/ \: F3 V1 ztest was ordered, but the family did not go to the
9 ~  J3 z. _, n; N; klaboratory to obtain the test.
$ ^0 z, M2 E8 d, L" b7 [! {1 d8 cDiscussion" e- s, p# a' D8 y  i  I, J
Precocious puberty in boys is defined as secondary4 E, d  i  E- I% r# L# \% j
sexual development before 9 years of age.1,42 O7 R, L# V6 r; r1 u3 M
Precocious puberty is termed as central (true) when
- u0 i* q; q, B5 W5 Nit is caused by the premature activation of hypo-4 m* L5 u, ]) ]$ B3 o
thalamic pituitary gonadal axis. CPP is more com-
, z1 J- f" [6 K* jmon in girls than in boys.1,3 Most boys with CPP" |' y7 j4 ^! u( J" V, ]
may have a central nervous system lesion that is0 l7 ]* H/ z9 D$ E. i, w
responsible for the early activation of the hypothal-" U3 D9 j6 l. J; |' o: s
amic pituitary gonadal axis.1-3 Thus, greater empha-
5 h! I0 [) q! s  x) ~sis has been given to neuroradiologic imaging in' [( V; R, |' `. \" Z
boys with precocious puberty. In addition to viril-
, K. m4 r: f. Mization, the clinical hallmark of CPP is the symmet-
2 B7 L. F- {! i, @$ j% {rical testicular growth secondary to stimulation by- G: k, G! `) n% d: }5 d- H, T2 F
gonadotropins.1,3
$ R& C4 `- L' B2 w" KGonadotropin-independent peripheral preco-
+ [# t  L$ |1 C1 {( m7 P6 i" [  r$ C# lcious puberty in boys also results from inappropriate1 C, @# I5 A) ]; Y( O, E3 c1 |
androgenic stimulation from either endogenous or$ O$ i+ j% A8 S; L! {, s; V) g* a
exogenous sources, nonpituitary gonadotropin stim-  p9 d9 m# {$ ^1 L/ l2 w9 h' l: l
ulation, and rare activating mutations.3 Virilizing; B0 d" L3 w0 E7 a1 U6 R. q0 p
congenital adrenal hyperplasia producing excessive
2 p8 r9 `& G3 i/ N$ qadrenal androgens is a common cause of precocious, r6 o0 R( W5 ~; i7 z. W- a
puberty in boys.3,4/ t" h  F2 W+ P/ Z: A. m
The most common form of congenital adrenal. s$ j. T) T' _$ e
hyperplasia is the 21-hydroxylase enzyme deficiency.: {- c7 d1 i& n  T& a
The 11-β hydroxylase deficiency may also result in
# O: J' |; \" Y& @) q* u9 eexcessive adrenal androgen production, and rarely,
/ r% H4 a5 f: C7 B, Y/ b! pan adrenal tumor may also cause adrenal androgen  {- `* N) X) _% l8 W* }
excess.1,3- I, t- n8 A% E- s
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from- Y* k. C7 }. v+ o3 s5 f
542 Clinical Pediatrics / Vol. 46, No. 6, July 2007
8 `/ ]# [  O: U* n. Q9 h, Y2 uA unique entity of male-limited gonadotropin-
' B5 I4 u8 E3 w5 Jindependent precocious puberty, which is also known
- E- S& O( n2 i; [% @+ ras testotoxicosis, may cause precocious puberty at a
. c+ Y! R% F5 ^very young age. The physical findings in these boys
1 Q6 E5 \0 e' Fwith this disorder are full pubertal development,+ a- c' g4 J9 D( A/ p
including bilateral testicular growth, similar to boys
/ F; m$ I5 s) E& Bwith CPP. The gonadotropin levels in this disorder* a7 l( F' d( v
are suppressed to prepubertal levels and do not show+ a: t. u' h# ?/ X' v) P" C
pubertal response of gonadotropin after gonadotropin-
$ v  X# f/ c$ ?, V1 jreleasing hormone stimulation. This is a sex-linked
8 o9 P/ {$ e2 }) Aautosomal dominant disorder that affects only  |' n6 Z# F- p% n3 @8 Q
males; therefore, other male members of the family
4 |+ G8 _- |9 N& w# M- v' A/ }$ Wmay have similar precocious puberty.37 I. Z; w9 b: W8 {- M) Z
In our patient, physical examination was incon-% H6 G7 N, ?' `1 U/ j. y( I
sistent with true precocious puberty since his testi-- R4 L+ l7 }- y6 q$ [, ]7 |
cles were prepubertal in size. However, testotoxicosis/ C+ M! U7 w+ C
was in the differential diagnosis because his father
1 C9 y! f& g0 ?% Tstarted puberty somewhat early, and occasionally,
1 [* @; q! k/ Ltesticular enlargement is not that evident in the
1 X( n7 J, Y7 ?+ F& f# T1 i- Gbeginning of this process.1 In the absence of a neg-5 h0 j0 _8 Y* C" y4 Y+ [
ative initial history of androgen exposure, our
2 l2 c0 F3 H0 b4 }& x) ]4 N7 w& gbiggest concern was virilizing adrenal hyperplasia,
0 Z2 c8 A9 A) o" Z) ^+ A9 ceither 21-hydroxylase deficiency or 11-β hydroxylase
$ \$ s7 H7 Y* Cdeficiency. Those diagnoses were excluded by find-7 M. P% w. ^9 i1 y. G
ing the normal level of adrenal steroids.! ^) t& ]+ q5 R' o5 k$ M$ q
The diagnosis of exogenous androgens was strongly$ J3 I1 H" e7 R. ?/ w/ o- n
suspected in a follow-up visit after 4 months because& d9 v8 X, q' e' |% C7 c
the physical examination revealed the complete disap-' T7 d" s$ t/ N& `1 f" U
pearance of pubic hair, normal growth velocity, and
" ?/ b: G5 ]0 f$ v4 c2 u( udecreased erections. The father admitted using a testos-9 e$ ~& g2 P8 N+ m8 e
terone gel, which he concealed at first visit. He was
; B) ~' r& W/ n) ~8 Y/ A& s0 xusing it rather frequently, twice a day. The Physicians’
' Y9 M1 N2 K1 M( h' RDesk Reference, or package insert of this product, gel or- T9 I( [. J* |, g" [8 Z5 @
cream, cautions about dermal testosterone transfer to
, o; k" k6 n' O/ C3 J8 u5 s. munprotected females through direct skin exposure.3 ?. t  H0 `. |/ q% ^' a9 e
Serum testosterone level was found to be 2 times the
& V  n" w: x; L1 sbaseline value in those females who were exposed to$ Y6 r2 X  k0 r! Q" _3 N- M
even 15 minutes of direct skin contact with their male: V/ O  k* K, q" [, K" [) ?
partners.6 However, when a shirt covered the applica-
6 q0 A3 R; n% J! s5 {7 stion site, this testosterone transfer was prevented.
, G' q7 g' a8 I* u+ v+ Q1 E) j& qOur patient’s testosterone level was 60 ng/mL,* A# z' G- V7 o. v, i
which was clearly high. Some studies suggest that& w/ M# Y! H' v4 R
dermal conversion of testosterone to dihydrotestos-
* \" ~" z# M9 t/ H7 C6 U- |terone, which is a more potent metabolite, is more3 `% Y1 y  q8 S; ]
active in young children exposed to testosterone* R$ X/ s  M) C" c2 }
exogenously7; however, we did not measure a dihy-3 y( |6 D) ?: a3 T( ^* d
drotestosterone level in our patient. In addition to9 h- I  y) ?8 \8 H
virilization, exposure to exogenous testosterone in
0 i. ~. O$ x! M( ochildren results in an increase in growth velocity and- w) h" V3 \. `5 S6 w$ [
advanced bone age, as seen in our patient.% \  f$ J/ r: g
The long-term effect of androgen exposure during
' z9 ~  c# s" iearly childhood on pubertal development and final" ?" r, t1 E8 l1 h
adult height are not fully known and always remain
2 T) k% t2 U* r; ma concern. Children treated with short-term testos-3 g4 C5 m2 ^! I) a) x+ t( Z
terone injection or topical androgen may exhibit some) B8 ?( C& [7 u% X0 s7 W
acceleration of the skeletal maturation; however, after+ |5 @. z% {+ a/ y" @
cessation of treatment, the rate of bone maturation
9 N, @! X1 Z& ~* {/ {" }decelerates and gradually returns to normal.8,9
! n0 F) a! \6 fThere are conflicting reports and controversy6 t+ d! w) _1 b) p, p) z' q
over the effect of early androgen exposure on adult
! I4 T8 c. L( r# ^/ Y5 ipenile length.10,11 Some reports suggest subnormal' z) f, `! h8 `1 J$ I. q7 _) U! H
adult penile length, apparently because of downreg-
- s2 M; }& {( o% G  W& _/ vulation of androgen receptor number.10,12 However,
+ u* Y9 P  u" U' u0 z4 L, cSutherland et al13 did not find a correlation between: V, _1 ]! G# v7 L: I2 Z' ^
childhood testosterone exposure and reduced adult
/ {; k9 A! {& vpenile length in clinical studies.0 b' J9 a% G# Q6 K- K3 Q4 U  \% P0 s* w
Nonetheless, we do not believe our patient is) \$ @) ?( p' f( Z6 ?
going to experience any of the untoward effects from; K# @) s/ e+ j; k4 x* C
testosterone exposure as mentioned earlier because$ X- t/ V# w, G! \- W' O
the exposure was not for a prolonged period of time.
( \9 [. m1 v3 e( _! |8 e$ {3 Q2 ]! sAlthough the bone age was advanced at the time of4 A+ x" y$ B: S4 k
diagnosis, the child had a normal growth velocity at
" Y' z- M, W4 A. V" u8 _0 ~) r5 }the follow-up visit. It is hoped that his final adult; ?' f1 k8 G$ {3 X* j( n9 W
height will not be affected.
1 R, a) g: J1 a0 Q) KAlthough rarely reported, the widespread avail-
( z; `" p$ j/ f. F6 Bability of androgen products in our society may% X0 {9 ~( ?3 r! n! z# m
indeed cause more virilization in male or female+ r# ]" S( g6 U: v/ Q$ _, b
children than one would realize. Exposure to andro-
) S* @3 j" Z; e; Xgen products must be considered and specific ques-9 s9 C9 Y7 _1 f& t( V
tioning about the use of a testosterone product or
! ~: y( K4 z5 }9 M% q* X, Bgel should be asked of the family members during- O# f2 Y! U. x  W$ U6 p* `. l3 |
the evaluation of any children who present with vir-
. y: C' ^' j- {, ?ilization or peripheral precocious puberty. The diag-- F% L& j+ e7 c1 Q
nosis can be established by just a few tests and by5 w" @) |' A$ V9 C
appropriate history. The inability to obtain such a
7 l* G8 Z3 P) Z1 j; l, ehistory, or failure to ask the specific questions, may
/ ~0 \5 g' {& f( K, N  V2 c" }result in extensive, unnecessary, and expensive
' y  E6 }% {$ O: Einvestigation. The primary care physician should be
. q' |3 h" Z/ }) Z" \aware of this fact, because most of these children# C0 o% K4 x% L! K
may initially present in their practice. The Physicians’
7 I! x4 {6 n. `! ]8 L+ \Desk Reference and package insert should also put a
( C$ V# [! k$ o$ w( ~4 hwarning about the virilizing effect on a male or
7 `2 z9 u) Z* j. }female child who might come in contact with some-. r5 l/ M% k* A2 f* ~8 c
one using any of these products.9 `; M+ Y6 p: l1 ~: F" ^
References
. G0 J% q2 A, n- i' S$ F( }1. Styne DM. The testes: disorder of sexual differentiation2 s( Q1 ^/ F: p( k
and puberty in the male. In: Sperling MA, ed. Pediatric
1 t# [; I' X5 E1 W0 y" v8 fEndocrinology. 2nd ed. Philadelphia, PA: WB Saunders;
4 @% {1 t  n2 Q4 s( a- k2002: 565-628., T; v' e. m9 O+ r3 T) v+ _
2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious9 I' B) j. D9 R6 ~
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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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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