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A case of myxoid adrenocortical neoplasm: computed tomography and magnetic resonance imaging characteristics.
[adrenal incidentaloma]
Myxoid
adrenocortical
neoplasms
are
rare
;
to
our
knowledge
,
only
56
cases
have
been
reported
in
the
literature
.
Therefore
,
distinguishing
benign
from
malignant
cases
is
challenging
.
Although
the
histopathological
features
of
myxoid
adrenocortical
neoplasia
have
been
amply
demonstrated
,
their
imaging
characteristics
are
yet
to
be
reported
.
We
describe
here
these
characteristics
for
such
a
neoplasm
.
Our
patient
,
a
70
-
year
-old
male
,
was
found
to
have
a
3
-
cm
left
adrenal
incidentaloma
through
a
non-enhanced
computed
tomography
.
Attenuation
measurements
were
22
Hounsfield
units
on
precontrast
imagery
,
and
percentage
enhancement
washout
was
92
%
.
Magnetic
resonance
imaging
showed
no
loss
of
signal
intensity
in
T
1
-
weighted
out-of-phase
images
,
but
high
signal
intensity
on
T
2
-
weighted
and
diffusion-weighted
images
.
Left
adrenalectomy
was
performed
and
the
pathological
diagnosis
was
confirmed
as
myxoid
adrenocortical
neoplasm
.
The
imaging
characteristics
reported
here
will
be
beneficial
to
the
differential
diagnosis
of
myxoid
adrenocortical
neoplasms
based
upon
image
analysis
and
will
help
distinguish
benign
from
malignant
neoplasms
.
Diseases
Validation
Diseases presenting
"neoplasm"
symptom
adrenal incidentaloma
alexander disease
aromatase deficiency
carcinoma of the gallbladder
cholangiocarcinoma
cowden syndrome
cushing syndrome
cutaneous mastocytosis
dedifferentiated liposarcoma
dentin dysplasia
erdheim-chester disease
esophageal adenocarcinoma
esophageal carcinoma
familial hypocalciuric hypercalcemia
focal myositis
hodgkin lymphoma, classical
hydrocephalus with stenosis of the aqueduct of sylvius
junctional epidermolysis bullosa
kabuki syndrome
liposarcoma
lymphangioleiomyomatosis
pleomorphic liposarcoma
primary effusion lymphoma
proteus syndrome
pyomyositis
von hippel-lindau disease
waldenström macroglobulinemia
well-differentiated liposarcoma
werner syndrome
wolf-hirschhorn syndrome
This symptom has already been validated