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Sexual Precocity in a 16-Month-Old0 S \: {1 @7 L6 K8 c7 x
Boy Induced by Indirect Topical
( h) u# Y4 q/ _3 j, c, aExposure to Testosterone$ l7 Q% ^! }1 W& ?0 {* [
Samar K. Bhowmick, MD, FACE,1 Tracy Ricke, MD,2( C" p( \ ], n& x
and Kenneth R. Rettig, MD1( q8 x( }/ H, q2 d; p
Clinical Pediatrics
. Q& M0 u7 g9 q8 A2 a& RVolume 46 Number 6
2 \2 g. {( a: }3 Y u5 IJuly 2007 540-543# r9 Z; U: q, \1 a
© 2007 Sage Publications
6 G+ m5 V" q* k2 J- b0 @. J' ]10.1177/00099228062966514 b; E" J$ L/ m1 C
http://clp.sagepub.com
# s7 R% s& h" r! X# lhosted at0 }6 [( I8 t6 ?2 G: i7 {2 ~
http://online.sagepub.com( }" `! W$ M0 a4 |& q
Precocious puberty in boys, central or peripheral,
* G' r. s1 q! k- H% Yis a significant concern for physicians. Central
4 B. G `& t$ Z) y4 H' Rprecocious puberty (CPP), which is mediated
7 q- h% |9 V2 {/ T3 jthrough the hypothalamic pituitary gonadal axis, has
- u* X) h1 T+ F" @, Da higher incidence of organic central nervous system
3 m. _; Z. P: t7 v3 slesions in boys.1,2 Virilization in boys, as manifested
; e/ n0 D! W: }( k3 iby enlargement of the penis, development of pubic
" k& V/ r7 Q* j4 C" Fhair, and facial acne without enlargement of testi-* B; _) J2 Z X+ g+ c) ^
cles, suggests peripheral or pseudopuberty.1-3 We
C, x, B/ {. w. H9 O$ p! _* D: L- x" freport a 16-month-old boy who presented with the
; Z( l4 z9 v' e5 tenlargement of the phallus and pubic hair develop-
( F/ P ^4 e+ ]! e2 c0 p: a' v# L$ yment without testicular enlargement, which was due0 F q) C+ I4 a* }% G2 I5 ` `% R' m% _
to the unintentional exposure to androgen gel used by
4 L/ X& \3 a$ s. L, rthe father. The family initially concealed this infor-
5 x2 j8 B! k; ?; o1 U7 j$ lmation, resulting in an extensive work-up for this
" ^/ L$ @0 I2 F8 t) Q" Gchild. Given the widespread and easy availability of8 R. o) X) M4 d& P6 }& A
testosterone gel and cream, we believe this is proba-
+ P+ C3 y$ R, l; ~5 ?8 t+ z0 Nbly more common than the rare case report in the( n6 x' Z5 Y/ X
literature.4! ~+ e0 w5 n) A+ z1 N6 A
Patient Report
9 K# b6 Z7 A9 T! `# EA 16-month-old white child was referred to the9 w9 i6 j% a# D1 H; X9 n% R
endocrine clinic by his pediatrician with the concern/ t; v# r6 u( P: w d/ U7 q7 k2 S% u
of early sexual development. His mother noticed, q( h6 W' c4 G- G' u
light colored pubic hair development when he was
( O% y7 @! W4 Y5 H1 ]( xFrom the 1Division of Pediatric Endocrinology, 2University of- g( L/ h0 G' s$ G( e8 R6 R
South Alabama Medical Center, Mobile, Alabama.; q6 l1 j; b `' v) n! a6 K
Address correspondence to: Samar K. Bhowmick, MD, FACE,3 ~- |( l9 R; O. a
Professor of Pediatrics, University of South Alabama, College of1 T; L1 M- ?2 o
Medicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;
# S- o* S. H7 Ee-mail: [email protected].
: p1 n$ I/ P& P. {. Iabout 6 to 7 months old, which progressively became6 Y5 o/ w2 Y" v5 e" {% U
darker. She was also concerned about the enlarge-2 ?( y8 z. o' u3 |; s; s4 K
ment of his penis and frequent erections. The child
0 E6 z8 S) n( z, gwas the product of a full-term normal delivery, with
' t+ a7 J$ }0 b+ a* l/ O- J e# Ma birth weight of 7 lb 14 oz, and birth length of
; f+ e' Y- g; f4 u$ `$ v; U/ B20 inches. He was breast-fed throughout the first year1 ]# D" }. V! h/ H
of life and was still receiving breast milk along with
* c- C; _: [' x/ U+ e8 Usolid food. He had no hospitalizations or surgery,9 x5 K& G0 \: e5 @
and his psychosocial and psychomotor development6 \: R4 h9 m6 _; ^) u2 [ e9 I# j) }; y
was age appropriate.
/ E0 }# k' u3 N4 F9 K, R& _The family history was remarkable for the father,- V- z5 [4 R' N
who was diagnosed with hypothyroidism at age 16,- d! @; M, u/ C. A) B; F2 [. l; V3 Q
which was treated with thyroxine. The father’s
' H4 X7 X0 o6 o# }- {% l1 L7 a" [! Lheight was 6 feet, and he went through a somewhat
) Z: H" X) j0 |* q! z0 zearly puberty and had stopped growing by age 14.# M$ t+ _1 Q* @ Z% f4 Z& F
The father denied taking any other medication. The
- Y9 v9 ^1 f" u9 tchild’s mother was in good health. Her menarche
! T: y, \7 ^3 _( a% x \5 P* mwas at 11 years of age, and her height was at 5 feet1 f; o; f I' K% C% s
5 inches. There was no other family history of pre-
2 F! E' x/ s: S( m4 W1 d s, {cocious sexual development in the first-degree rela-
! G8 ~* |1 y) X* U rtives. There were no siblings.# E `1 D% G! z5 _
Physical Examination
3 c2 @; | p& A7 B' g( |$ I' k7 }The physical examination revealed a very active,
8 {$ J1 h5 ^1 Q7 [playful, and healthy boy. The vital signs documented+ _; r+ u( U' G0 k5 g- @1 v" ~
a blood pressure of 85/50 mm Hg, his length was
$ Y" G- q/ N3 w, E o+ |4 {90 cm (>97th percentile), and his weight was 14.4 kg
4 r, D$ }5 X5 ?6 ~# z& e5 c(also >97th percentile). The observed yearly growth8 ?9 B$ L% N% u0 z- w2 r8 J- c
velocity was 30 cm (12 inches). The examination of; N. W( N" s H2 A
the neck revealed no thyroid enlargement.
( |5 S* V- V+ C; L% b3 ~ r C& YThe genitourinary examination was remarkable for) `* g9 Z2 t. M1 O, I; m, {" g4 c
enlargement of the penis, with a stretched length of
l" [0 w+ d1 g8 cm and a width of 2 cm. The glans penis was very well! C% q! c) J$ A# m1 a" J9 J; \2 e
developed. The pubic hair was Tanner II, mostly around. m8 h9 c% X+ i: d2 m
540
! T5 X d# G( l1 u" }! c8 R. Pat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
0 [- u) J3 Q& G% _- [the base of the phallus and was dark and curled. The
- P1 g f: @, ^5 Atesticular volume was prepubertal at 2 mL each./ N/ q; r0 A9 F
The skin was moist and smooth and somewhat
3 X/ \7 m9 ^3 i8 G4 G! ~, h }oily. No axillary hair was noted. There were no( u% Y D: [- B; [
abnormal skin pigmentations or café-au-lait spots.
) A) b* ]7 ?2 p) {2 R+ fNeurologic evaluation showed deep tendon reflex 2+. g7 F- E4 g. F. ^: Y" f+ ^7 S
bilateral and symmetrical. There was no suggestion
2 } ?& a& n8 ~3 W" }" g: [of papilledema.
( }/ L2 a- Z! _: r+ X7 r& oLaboratory Evaluation/ Y0 ?2 M2 E* X$ j% o
The bone age was consistent with 28 months by
5 k5 t. Q6 Q& A: M8 M2 Wusing the standard of Greulich and Pyle at a chrono-
1 [$ G0 B, d5 y3 dlogic age of 16 months (advanced).5 Chromosomal
9 @- S' c( E" M3 m0 Ykaryotype was 46XY. The thyroid function test1 n' H/ ?7 b. S# ]: `( m/ M4 g: g
showed a free T4 of 1.69 ng/dL, and thyroid stimu-4 A m6 z9 h/ c& n g9 q$ C
lating hormone level was 1.3 µIU/mL (both normal).
6 y/ Z" e/ T0 T1 h; e+ C$ uThe concentrations of serum electrolytes, blood6 A& ~# _2 N* L/ A9 \, l
urea nitrogen, creatinine, and calcium all were
% u! S3 t( R% Z! E5 Zwithin normal range for his age. The concentration
9 Y# E! O7 f# h! l- vof serum 17-hydroxyprogesterone was 16 ng/dL
4 a# }# T, Y! c. a0 u" W: c/ P(normal, 3 to 90 ng/dL), androstenedione was 20
6 b" r& y+ ]( v7 Hng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-: T( u/ P* o5 u: d# {. E$ ]. y
terone was 38 ng/dL (normal, 50 to 760 ng/dL),
% Y1 m4 e# {' B% ]+ _+ _desoxycorticosterone was 4.3 ng/dL (normal, 7 to
" t6 A) C. U+ d1 D) r49ng/dL), 11-desoxycortisol (specific compound S)" t- O" A- B# P6 g" R
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-
- f \, x! w7 T* ?tisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total
: ?; ?# H6 Z3 A) R9 W) }6 P% etestosterone was 60 ng/dL (normal <3 to 10 ng/dL),! O3 i* J& n7 N0 }
and β-human chorionic gonadotropin was less than/ l7 c4 U" L9 K
5 mIU/mL (normal <5 mIU/mL). Serum follicular0 `0 V: l$ h! w( c
stimulating hormone and leuteinizing hormone" V! {7 l* M% J2 k- |, ^' o
concentrations were less than 0.05 mIU/mL
1 {# p/ `- B0 Y: F: x* b(prepubertal).
% g! U! I+ o) F1 u) \The parents were notified about the laboratory3 R( Z+ N6 w$ K o4 E% j
results and were informed that all of the tests were
% x n% A$ a3 g. l, s5 nnormal except the testosterone level was high. The- E. c _& a- E# C* T$ ]" E0 A
follow-up visit was arranged within a few weeks to
; g6 y; i8 ?* ^obtain testicular and abdominal sonograms; how-
. V$ ]4 G; x o% e- F) l$ fever, the family did not return for 4 months.
, [ k4 B9 {. S* H5 j0 E7 [: WPhysical examination at this time revealed that the0 F0 y4 N% b+ E
child had grown 2.5 cm in 4 months and had gained
3 C3 \* Y% L1 b4 Q# y" c2 kg of weight. Physical examination remained
- B4 I" V1 j8 r1 x4 l9 Z, c5 k6 Z8 punchanged. Surprisingly, the pubic hair almost com-9 N3 T, `8 L7 Y5 {, {$ W" \
pletely disappeared except for a few vellous hairs at. H$ n! L2 f% ?8 a
the base of the phallus. Testicular volume was still 2# J" l4 ^! Q5 x) I
mL, and the size of the penis remained unchanged.
: Y" }; |: T$ n0 C- `/ xThe mother also said that the boy was no longer hav- ~: s* s& Y. N0 q9 [+ v( Y
ing frequent erections.8 [7 c9 ?( X' A; f8 G% H! H t4 i; ~
Both parents were again questioned about use of
7 O( P9 S1 ^' m* o! x/ nany ointment/creams that they may have applied to
; t0 ^% S( q% ~1 X6 T* Qthe child’s skin. This time the father admitted the5 N$ ~5 k- p2 C* s) @* }1 U
Topical Testosterone Exposure / Bhowmick et al 541
# ]9 S9 s, G3 |, euse of testosterone gel twice daily that he was apply-6 ]& a, I A4 \. f# [+ m6 a& B
ing over his own shoulders, chest, and back area for
- r& s( L, I S. y0 X& E! ga year. The father also revealed he was embarrassed
" G7 E/ Z; i8 ~7 b8 ato disclose that he was using a testosterone gel pre-, n9 x8 b1 j7 L+ f1 \. t
scribed by his family physician for decreased libido
: p' R$ H7 ^$ T' }& Psecondary to depression./ k# b- E7 [9 }$ s9 D
The child slept in the same bed with parents.
8 l: ^. R4 z7 K. R4 |The father would hug the baby and hold him on his r! [: R( `/ E+ c
chest for a considerable period of time, causing sig-
3 c; k0 O5 E, _ _' \nificant bare skin contact between baby and father.
7 Y1 ?8 R, {& J6 [4 W% vThe father also admitted that after the phone call,
7 U" e, `8 o! h7 K! gwhen he learned the testosterone level in the baby0 v4 G1 w& i( j% K
was high, he then read the product information
; s( ~" E9 `# H8 D- x% g9 X1 n& |packet and concluded that it was most likely the rea-! o6 N G5 a* f. r8 O
son for the child’s virilization. At that time, they( E3 P& R: X9 r7 R
decided to put the baby in a separate bed, and the! N4 `( E( [1 q- ~3 @
father was not hugging him with bare skin and had9 R' n: O* ]) \( L, a9 }3 t: i# @
been using protective clothing. A repeat testosterone
* d# [9 I3 y, D2 M( ^# utest was ordered, but the family did not go to the
1 `5 a3 C. m/ Z. R/ ]) vlaboratory to obtain the test.
! }6 u8 \+ g x/ T! u) q/ EDiscussion
2 h0 M- T- w# B U- u- XPrecocious puberty in boys is defined as secondary
) l+ q+ a7 Y/ L8 \! Q4 M2 tsexual development before 9 years of age.1,4" a( d1 n, I1 U0 `8 J) N" G. W7 z
Precocious puberty is termed as central (true) when# H4 q4 {5 F" `+ O
it is caused by the premature activation of hypo-( A0 s, j1 A2 [% X4 \
thalamic pituitary gonadal axis. CPP is more com-
! [) K# k) x2 q: x& \, emon in girls than in boys.1,3 Most boys with CPP
4 y+ q H% ?5 i/ S% W! v; ymay have a central nervous system lesion that is5 Y7 d) i4 n, ^
responsible for the early activation of the hypothal-1 \ `7 O/ S, J- M
amic pituitary gonadal axis.1-3 Thus, greater empha-0 Q. J1 Y( v4 z7 D7 P/ Z1 r
sis has been given to neuroradiologic imaging in
w! m% q% T3 k4 q. z; s/ Uboys with precocious puberty. In addition to viril-
7 R, K8 h9 i! }) ?) ?9 b9 ^3 hization, the clinical hallmark of CPP is the symmet-+ n$ f4 }5 Q- V( ^+ r6 A
rical testicular growth secondary to stimulation by
' f* c! d- L0 b2 h! l4 tgonadotropins.1,3
! ? y3 F8 y3 ]/ WGonadotropin-independent peripheral preco-
5 p7 Y# P1 S2 P+ G, ^cious puberty in boys also results from inappropriate
: v. y3 w' x6 Y) g o. ]& d# ~2 ]androgenic stimulation from either endogenous or) d( Q+ O8 a# U$ M/ o
exogenous sources, nonpituitary gonadotropin stim-" K0 N8 P9 N3 c3 R1 |
ulation, and rare activating mutations.3 Virilizing9 j f2 T$ K( d2 a) N5 c% V
congenital adrenal hyperplasia producing excessive$ ?' p0 Q; I9 e1 k- O
adrenal androgens is a common cause of precocious6 D! v9 c% r! o( _: n% A
puberty in boys.3,4
! e) R' p i) U# v$ c) n0 g. rThe most common form of congenital adrenal+ g' `! h% d0 o# M8 P9 @
hyperplasia is the 21-hydroxylase enzyme deficiency.
7 [" W/ F3 D- o5 R( tThe 11-β hydroxylase deficiency may also result in
3 X6 |7 ^7 Y. yexcessive adrenal androgen production, and rarely,
0 x' L/ L; J8 Z% m% San adrenal tumor may also cause adrenal androgen
. d; h8 q$ a, V/ }+ E- j" u" Cexcess.1,3- P3 S* v' Y2 ]
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
/ `7 T) U$ G$ X% h e8 Z* e542 Clinical Pediatrics / Vol. 46, No. 6, July 2007, I `: w9 `% P( o# ~3 a+ H
A unique entity of male-limited gonadotropin-( l, q6 c' y4 H; _; y
independent precocious puberty, which is also known
9 T$ `! V( G$ V% Kas testotoxicosis, may cause precocious puberty at a
; E8 `$ X. O3 {7 gvery young age. The physical findings in these boys& c& | p( s: R7 m
with this disorder are full pubertal development,- _* G; X( m1 O q& q
including bilateral testicular growth, similar to boys
( h" V/ Q# {5 P0 Qwith CPP. The gonadotropin levels in this disorder
~9 ^+ L. x# {. T5 Vare suppressed to prepubertal levels and do not show. A- [0 I6 k( s" F/ F, O v3 M# i6 z
pubertal response of gonadotropin after gonadotropin-
: p4 {2 ?. ~: i$ rreleasing hormone stimulation. This is a sex-linked
, L0 w0 J% n+ d: {+ P3 Vautosomal dominant disorder that affects only' \# F$ f1 \- w% w
males; therefore, other male members of the family) z: {" D/ }& e
may have similar precocious puberty.30 S- J+ q+ _ _$ g: c# x, A
In our patient, physical examination was incon-2 H+ Q3 Q I7 K& b3 m" S& P" G
sistent with true precocious puberty since his testi-
$ g; o M, x e. w |cles were prepubertal in size. However, testotoxicosis, L. F6 e% t" G/ _
was in the differential diagnosis because his father
1 f) _* x1 }' ?0 d$ u. D7 Vstarted puberty somewhat early, and occasionally,
1 \. K2 x: Z: J8 q/ y# utesticular enlargement is not that evident in the) w) h) k' I/ m/ c7 D0 |. E6 A" @5 [
beginning of this process.1 In the absence of a neg-' c* k+ D9 V- T! P: v% l! P" |2 W
ative initial history of androgen exposure, our x: ~: i3 X! H& I7 J- {+ S: o S
biggest concern was virilizing adrenal hyperplasia,* f1 z) K' c' [4 k4 i0 s8 _ j
either 21-hydroxylase deficiency or 11-β hydroxylase
; _1 {5 k; n9 x9 ~deficiency. Those diagnoses were excluded by find-. p) f" B* Y# k* G& q
ing the normal level of adrenal steroids.4 G# C+ f7 \! {, P3 S8 y- o9 W
The diagnosis of exogenous androgens was strongly" k/ T* Q+ W* U0 p
suspected in a follow-up visit after 4 months because
- n! V( T$ x) G! `the physical examination revealed the complete disap-3 w/ i* F& x+ I1 ]
pearance of pubic hair, normal growth velocity, and5 F1 H4 R" Y6 [
decreased erections. The father admitted using a testos-8 ~2 M3 R; s1 ^( p6 \9 a
terone gel, which he concealed at first visit. He was, @1 ] \) t( v2 T0 f
using it rather frequently, twice a day. The Physicians’, I* Y6 {( k5 w$ V1 D
Desk Reference, or package insert of this product, gel or
9 c( d$ i+ L! c( t1 P7 Xcream, cautions about dermal testosterone transfer to! Y- T7 S$ Y5 R3 ?6 y0 p
unprotected females through direct skin exposure.( X ] H* G! L5 c8 b% d, Z/ L' G
Serum testosterone level was found to be 2 times the
3 \3 b) c. g% Mbaseline value in those females who were exposed to4 j" p9 [: u/ r3 Z
even 15 minutes of direct skin contact with their male
+ b4 z1 a! Q |& v; B/ E* ^9 E P' n; Qpartners.6 However, when a shirt covered the applica-
) g0 [) T. j2 Jtion site, this testosterone transfer was prevented.9 ]) L7 u) K) ^$ \0 g7 t
Our patient’s testosterone level was 60 ng/mL,
9 \0 ]. d4 g9 O4 d9 }' twhich was clearly high. Some studies suggest that) Z, ]2 n1 ?, ?# s& m
dermal conversion of testosterone to dihydrotestos-
# J9 u- X1 i# x# [terone, which is a more potent metabolite, is more
& K' I, p2 I3 bactive in young children exposed to testosterone2 `7 M4 w K$ D7 j& w: l
exogenously7; however, we did not measure a dihy-
$ s3 w$ t d O9 O8 p+ A4 bdrotestosterone level in our patient. In addition to
/ q0 C8 q* j5 [3 A# ?' }5 b( kvirilization, exposure to exogenous testosterone in
+ K+ w% F$ d1 N- p/ K# i' V& Nchildren results in an increase in growth velocity and
- K8 p$ k; s1 A9 [1 radvanced bone age, as seen in our patient.: p6 |0 x: i5 e! d7 w1 Z1 D
The long-term effect of androgen exposure during
; `) C" m3 }+ b# W; mearly childhood on pubertal development and final( N+ u$ t8 |$ x& a" r% t
adult height are not fully known and always remain
( j2 Q6 [1 u0 H3 e$ y/ qa concern. Children treated with short-term testos-6 K+ l5 }( T, M9 n5 l1 E5 _; m4 B2 T
terone injection or topical androgen may exhibit some$ Z3 x3 t9 B1 A
acceleration of the skeletal maturation; however, after1 h! A& D. l: v
cessation of treatment, the rate of bone maturation
) X. ~" M* C9 _decelerates and gradually returns to normal.8,9
" D# U3 B/ a4 @There are conflicting reports and controversy/ w& h' ?3 v: D4 E, k
over the effect of early androgen exposure on adult
8 R) E. F9 z* ^, ]7 x& tpenile length.10,11 Some reports suggest subnormal
1 i) A& l1 M! Y3 ?2 S: q) F/ }adult penile length, apparently because of downreg-( M1 R( [9 d+ E! g+ M# h7 r$ `! c E( `
ulation of androgen receptor number.10,12 However,7 L1 s& [: a( ~8 w
Sutherland et al13 did not find a correlation between
* D) q( z0 `8 [! i5 R6 a Q) D l+ ichildhood testosterone exposure and reduced adult
, l# q" M. D' I1 Ypenile length in clinical studies. U) w: z6 C" c g* [
Nonetheless, we do not believe our patient is
1 f& w; g3 e- k8 B zgoing to experience any of the untoward effects from4 f: H: u/ o) Y, i9 o7 a n9 @
testosterone exposure as mentioned earlier because
: [) L1 ^# X* f- ^2 qthe exposure was not for a prolonged period of time.
8 H1 n0 {; K3 `% s9 k/ [ M# ^ o jAlthough the bone age was advanced at the time of t' N& C# o) j( Q$ x
diagnosis, the child had a normal growth velocity at3 P( ?% I- Y1 A
the follow-up visit. It is hoped that his final adult
( F' z& f E( h' e6 c4 O6 uheight will not be affected.' [% B& X% [' o" `4 L
Although rarely reported, the widespread avail-. ~" C. Y% m$ J2 v5 B8 O
ability of androgen products in our society may
; L! r2 Z3 t/ x( [indeed cause more virilization in male or female
; p S$ W: D/ R3 w+ nchildren than one would realize. Exposure to andro-+ S% G, g: U/ J4 D1 Q. w
gen products must be considered and specific ques-
$ d* {, `1 i4 E; Ptioning about the use of a testosterone product or: d; |" o, c6 {2 g2 ~* Y
gel should be asked of the family members during/ r6 d. {' E' _; f- }9 Z) t
the evaluation of any children who present with vir-
1 a* N+ S3 A& g, s) A' N1 x0 Lilization or peripheral precocious puberty. The diag-
% a4 p( w* S$ E- ~4 Hnosis can be established by just a few tests and by
& F: R/ ?. x! x5 R9 j" Sappropriate history. The inability to obtain such a
r s; Y. K: v% u! [2 A. d1 [, mhistory, or failure to ask the specific questions, may
7 s# L9 _5 z) g2 v) B- H+ Nresult in extensive, unnecessary, and expensive
6 L- M. A ^) ]investigation. The primary care physician should be# ]0 l% U s# Y/ ]- z
aware of this fact, because most of these children
6 c5 l# j* V, Y& Dmay initially present in their practice. The Physicians’
f0 A' E- k9 z+ k% |6 b& k) ADesk Reference and package insert should also put a, o- r1 q# U: O4 i7 A# d
warning about the virilizing effect on a male or
' e9 ]+ a0 E3 V+ p R! Ofemale child who might come in contact with some-& a% A* q$ A, X2 A) `
one using any of these products.
: _4 G# X( y: O, s6 kReferences7 L' A/ U `, T- n% X0 |
1. Styne DM. The testes: disorder of sexual differentiation
& |7 o4 D* U/ R6 Oand puberty in the male. In: Sperling MA, ed. Pediatric3 M" y7 \, k6 I7 W5 _
Endocrinology. 2nd ed. Philadelphia, PA: WB Saunders;8 _% c. S9 l1 Y! q7 O. W0 H" l
2002: 565-628.
% W% G6 J% o8 c& C2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious
2 F) N/ n' h' m% E3 [& w! p; epuberty in children with tumours of the suprasellar pineal |
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