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Lymphoepithelioma-like esophageal carcinoma with macroscopic reduction.
[esophageal carcinoma]
Esophageal
lymphoepithelioma-like
carcinoma
(
LELC
)
is
extremely
rare
.
We
report
the
first
case
of
esophageal
LELC
showing
macroscopic
reduction
.
A
67
-
year
-old
male
presented
with
dysphagia
and
,
by
endoscopic
examination
,
was
found
to
have
a
significantly
raised
tumor
of
10
mm
in
diameter
in
the
thoracic
esophagus
.
The
biopsied
material
showed
esophageal
cancer
.
We
performed
endoscopic
submucosal
dissection
.
However
,
the
tumor
became
flattened
,
similar
to
a
scar
,
in
only
2
mo
.
Histologically
,
the
carcinoma
cells
had
infiltrated
the
submucosal
layer
.
Prominent
infiltration
of
T
lymphoid
cells
that
stained
positive
for
CD
8
was
observed
around
the
carcinoma
cells
.
Therefore
,
this
lesion
was
considered
to
be
an
LELC
with
poorly
differentiated
squamous
cells
.
Because
the
margin
was
positive
,
an
esophagectomy
was
performed
.
Carcinoma
cells
were
detected
in
the
neck
in
one
lymph
node
.
The
staging
was
T
1
N
0
M
1
b
.
However
,
the
patient
has
been
well
,
without
adjuvant
therapy
or
recurrence
,
for
more
than
5
years
.
Diseases
Validation
Diseases presenting
"prominent infiltration"
symptom
esophageal carcinoma
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