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A case of well-differentiated palpebral liposarcoma in a Guinea pig (Cavia porcellus).
[well-differentiated liposarcoma]
Liposarcomas
are
rare
malignant
tumors
of
the
adipose
tissue
which
are
well
described
in
humans
and
animals
.
Wide
margin
excision
is
the
recommended
treatment
for
these
infiltrative
,
slow
to
metastasize
tumors
.
Primary
liposarcoma
with
ocular
localization
is
a
very
rare
tumor
in
humans
,
dogs
and
cats
.
This
report
describes
,
for
the
first
time
,
a
palpebral
liposarcoma
in
a
18
-
month
old
guinea
pig
that
presented
with
a
large
palpebral
mass
and
purulent
discharge
in
the
right
eye
.
The
ophthalmic
evaluation
revealed
a
one
-centimeter
infiltrating
subcutaneous
mass
within
the
upper
eyelid
,
a
severe
chemosis
and
hyperhemia
of
the
palpebral
and
bulbar
conjunctiva
of
the
right
eye
.
Cytologic
examination
of
the
mass
revealed
only
epithelial
cells
.
Histologic
examination
interpreted
the
lesion
as
a
xanthogranulomatous
reaction
possibly
secondary
to
meibomian
gland
rupture
or
inflammation
.
One
month
later
,
the
mass
had
increased
in
size
and
the
animal
had
stopped
eating
.
Euthanasia
was
performed
and
a
large
biopsy
was
submitted
for
another
histological
examination
.
Histopathology
revealed
polygonal
to
rounded
cells
with
a
large
,
empty
intracytoplasmic
vacuole
,
and
an
ovoid
,
eccentrically
located
nucleus
.
The
histology
was
consistent
with
a
well-differentiated
liposarcoma
.
Given
the
unusual
location
,
immunohistochemistry
was
performed
to
ascertain
the
mesenchymal
nature
of
the
neoplasm
.
Diseases
Validation
Diseases presenting
"first time"
symptom
achondroplasia
acute rheumatic fever
adrenal incidentaloma
adrenomyeloneuropathy
alpha-thalassemia
aniridia
aromatase deficiency
canavan disease
carcinoma of the gallbladder
cholangiocarcinoma
classical phenylketonuria
congenital adrenal hyperplasia
congenital toxoplasmosis
cowden syndrome
cushing syndrome
cutaneous mastocytosis
dedifferentiated liposarcoma
dentin dysplasia
dentinogenesis imperfecta
dracunculiasis
dystrophic epidermolysis bullosa
epidermolysis bullosa simplex
erdheim-chester disease
erythropoietic protoporphyria
esophageal adenocarcinoma
esophageal carcinoma
esophageal squamous cell carcinoma
fabry disease
familial mediterranean fever
gm1 gangliosidosis
harlequin ichthyosis
heparin-induced thrombocytopenia
hirschsprung disease
hodgkin lymphoma, classical
holt-oram syndrome
hydrocephalus with stenosis of the aqueduct of sylvius
junctional epidermolysis bullosa
kabuki syndrome
kallmann syndrome
liposarcoma
locked-in syndrome
lymphangioleiomyomatosis
malignant atrophic papulosis
megacystis-microcolon-intestinal hypoperistalsis syndrome
monosomy 21
neuralgic amyotrophy
oculocutaneous albinism
oligodontia
omenn syndrome
oral submucous fibrosis
papillon-lefèvre syndrome
pendred syndrome
phenylketonuria
primary effusion lymphoma
primary hyperoxaluria type 1
severe combined immunodeficiency
sneddon syndrome
triple a syndrome
trochlear dysplasia
von hippel-lindau disease
waldenström macroglobulinemia
well-differentiated liposarcoma
werner syndrome
wiskott-aldrich syndrome
wolf-hirschhorn syndrome
x-linked adrenoleukodystrophy
zellweger syndrome
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