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Carcinosarcoma of the gallbladder: report of two cases.
[carcinoma of the gallbladder]
Adenocarcinoma
is
the
predominant
histological
type
of
carcinoma
of
the
gallbladder
,
accounting
for
more
than
80
%
of
all
gallbladder
carcinomas
.
In
contrast
,
carcinosarcoma
of
the
gallbladder
is
an
extremely
atypical
subset
of
gallbladder
malignancies
.
It
is
characterized
by
the
presence
of
both
epithelial
and
mesenchymal
components
.
Currently
,
fewer
than
100
cases
have
been
reported
in
the
English
literature
.
Therefore
,
knowledge
and
experience
regarding
this
disease
are
limited
.
Recently
,
we
experienced
two
cases
of
gallbladder
carcinosarcoma
,
which
were
diagnosed
as
gallbladder
carcinoma
based
on
the
preoperative
clinical
and
radiological
examinations
.
Cholecystectomies
were
performed
in
both
cases
,
and
the
malignant
tumor
cells
included
carcinomatous
and
sarcomatous
components
histologically
.
The
final
pathological
diagnoses
were
carcinosarcoma
of
the
gallbladder
.
We
herein
report
these
two
cases
of
gallbladder
carcinosarcoma
and
review
the
previous
pertinent
literature
.
