A
pilomatrixoma
is
a
benign
appendageal
tumor
with
differentiation
____________________
hair
cells
.
It
usually
manifests
as
a
solitary
,
____________________
,
firm
nodule
.
It
has
long
been
considered
a
rare
tumor
,
____________________
it
may
be
more
common
than
previously
____________________
.
It
is
more
common
in
children
,
but
occurrence
in
adults
is
increasingly
being
recognized
.
Recommended
treatment
is
surgical
excision
.
Multiple
pilomatrixomas
____________________
been
observed
,
mainly
in
association
with
myotonic
dystrophy
.
Pilomatrix
____________________
is
a
rare
condition
.
