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Primary dedifferentiated liposarcoma of the femur presenting with malignant fibrous histiocytoma: A case report and review of the literature.
[dedifferentiated liposarcoma]
In
the
current
report
a
case
of
a
26
-
year
-old
male
with
a
primary
dedifferentiated
liposarcoma
of
the
femur
accompanied
by
malignant
fibrous
histiocytoma
is
presented
.
The
patient
complained
of
a
dull
intermittent
pain
,
for
three
months
,
along
the
anterolateral
aspect
of
the
right
knee
and
was
referred
to
Southwest
Hospital
(
Chongqing
,
China
)
in
May
2013
.
All
of
the
radiographic
findings
,
including
radiography
,
magnetic
resonance
image
and
emission
computed
tomography
(
CT
)
supported
the
diagnosis
of
a
primary
malignant
bone
tumor
.
CT
-guided
biopsy
results
demonstrated
blood
clots
and
a
small
quantity
of
heterogeneous
cells
.
Thus
,
a
limb
-salvage
procedure
,
involving
a
wide
resection
and
total
knee
endoprosthesis
replacement
,
was
performed
in
May
2012
.
The
final
pathological
diagnosis
was
of
a
primary
dedifferentiated
liposarcoma
of
the
femur
and
the
dedifferentiated
tissue
was
identified
as
malignant
fibrous
histiocytoma
.
On
review
of
the
literature
,
it
was
identified
that
primary
intraosseous
liposarcoma
are
a
rare
and
malignant
tumor
of
the
skeletal
system
,
with
only
a
small
number
of
cases
reported
in
the
English
literature
since
1980
.
To
the
best
of
our
knowledge
,
a
case
of
dedifferentiated
liposarcoma
has
not
previously
been
reported
.
Diseases
Validation
Diseases presenting
"right knee"
symptom
dedifferentiated liposarcoma
liposarcoma
pyomyositis
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