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Primary liposarcoma of the lumbar spine.
[pleomorphic liposarcoma]
We
describe
a
rare
case
of
the
cauda
equina
syndrome
caused
by
a
primary
pleomorphic
liposarcoma
of
the
lumbar
spine
.
A
35
-
year
-old
man
presented
a
2
-
month
history
of
back
pain
and
slowly
progressive
weakness
of
lower
limbs
without
sphincter
dysfunction
.
It
had
a
laminectomy
for
a
supposed
disc
herniation
three
years
previously
.
A
diagnosis
of
recurrence
hernia
or
fibrosis
was
discussed
.
Magnetic
Resonance
Imaging
(
MRI
)
and
CT
scan
of
the
lumbar
vertebral
column
shows
diffuse
involvement
of
L
4
/
L
5
vertebral
bodies
,
and
an
intradural
lesion
surrounding
the
nerve
roots
of
cauda
equina
.
The
tumor
occupied
almost
the
whole
width
of
the
spinal
canal
.
The
diagnosis
of
plasmocytoma
or
metastasis
was
advocated
and
the
patient
was
managed
by
an
extended
posterior
approach
in
emergency
.
Histopathological
findings
revealed
a
pleomorphic
liposarcoma
.
The
patient
received
a
course
of
radiotherapy
and
unfortunately
he
died
at
3
months
follow-up
.
In
spite
of
his
unusual
location
in
the
spine
,
pleomorphic
liposarcoma
should
be
considered
in
the
differential
diagnosis
of
primary
spinal
tumors
.
