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Coexistence of two types of clinical lesions in childhood-onset mastocytosis.
[cutaneous mastocytosis]
The
vast
majority
of
mastocytosis
appear
in
childhood
,
urticaria
pigmentosa
(
UP
)
and
mastocytomas
being
the
most
common
types
.
Terms
such
as
"
xanthelasmoid
mastocytosis
"
,
"
pseudoxanthomatous
mastocytosis
"
or
"
nodular
mastocytosis
"
have
been
introduced
in
the
literature
to
describe
the
presence
of
yellowish
papular
or
nodular
lesions
.
We
describe
two
children
with
cutaneous
mastocytosis
showing
yellowish
lesions
in
combination
with
other
skin
lesions
.
A
10
-
year
-old
girl
presented
with
asymptomatic
lesions
in
her
vulva
at
birth
,
and
developed
brownish
macules
on
her
trunk
years
after
.
An
eight
-
year
-old
boy
presented
with
multiple
yellowish
papular
lesions
on
his
trunk
,
neck
and
limbs
coexisting
with
a
few
clinically
anetodermic
lesions
.
No
systemic
involvement
was
found
and
the
skin
biopsy
confirmed
a
cutaneous
mastocytosis
in
both
cases
.
The
two
patients
are
currently
asymptomatic
and
are
being
periodically
followed
up
.
Mastocytoses
may
show
a
variety
of
clinical
lesions
,
sometimes
leading
to
misdiagnosis
.
Although
there
are
previous
reports
,
involvement
of
the
mucosae
and
secondary
anetoderma
are
not
common
findings
in
cutaneous
mastocytoses
.
We
consider
that
cutaneous
manifestations
of
mastocytoses
compose
a
clinical
spectrum
,
thus
explaining
the
coexistence
of
different
clinical
lesions
and
the
development
of
uncommon
presentations
.
Diseases
Validation
Diseases presenting
"the development of uncommon presentations"
symptom
cutaneous mastocytosis
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