Porokeratosis
is
a
clonal
disorder
of
keratinization
____________________
by
one
or
more
atrophic
patches
surrounded
by
a
clinically
and
histologically
distinctive
hyperkeratotic
ridgelike
border
____________________
the
cornoid
lamella
.
Historically
,
porokeratosis
is
a
misnomer
that
____________________
erroneously
coined
on
the
assumptions
____________________
cornoid
lamellae
emerged
from
pores
____________________
the
sweat
glands
.
Multiple
clinical
variants
of
porokeratosis
are
____________________
.
Malignancies
,
typically
squamous
cell
carcinomas
,
may
develop
within
lesions
of
porokeratosis
.
