Items tagged “oncology”
445 results found
Article
Adrenal calcification
Adrenal calcification is not a rare finding in healthy asymptomatic people and is usually the result of previous hemorrhage or tuberculosis. Addison disease patients only occasionally develop calcification.
Pathology
Etiology
Hemorrhage
sepsis: Waterhouse-Friderichsen syndrome
blunt abdomi...
Case
Wilms tumor
Published
02 Apr 2009
92% complete
X-ray
CT
Article
Duodenal filling defects
Duodenal filling defects may be caused by a wide variety of duodenal pathology which may be divided by their location and pathological process.
Extrinsic
gallbladder impression
common bile duct impression
gas-filled diverticulum
Intrinsic
Note: please refer to duodenal mucosal nodular fill...
Case
Atypical teratoid rhabdoid tumor (AT/RT)
Published
16 Apr 2009
69% complete
CT
MRI
Article
Hepatomegaly
Hepatomegaly refers to an increase in size or enlargement of the liver.
Pathology
Etiology
Hepatomegaly can result from a vast range of pathology including, but not limited to, the following:
malignancy/cellular infiltrate
multiple metastases
lymphoma(s)
leukemia(s)
hepatocellular carci...
Case
Orbital apex mass - metastasis
Published
20 Jun 2009
74% complete
CT
Article
Cervical lymph node (staging)
Cervical lymph node staging refers to evaluating regional nodal metastasis from primary cancer of the head and neck. The following article reflects the 8th edition of the TNM staging system published by the American Joint Committee on Cancer, which is used for staging starting January 1, 2018 1,...
Article
Tram-track sign (orbit)
Tram-track sign refers to the parallel thickening and enhancement around the optic nerve, and is most frequently seen in the setting of optic nerve meningioma. It may, however, also be seen in 1:
orbital pseudotumor
perioptic neuritis
orbital sarcoidosis
orbital leukemia
orbital lymphoma
o...
Article
Optic nerve enlargement
Enlargement of the optic nerves is uncommon. Swelling of the optic nerves has a surprisingly broad differential.
Etiology
neoplastic
optic nerve glioma
optic nerve meningioma
leukemia
orbital lymphoma
metastases
juvenile xanthogranuloma
medulloepithelioma
involvement by retinoblastoma
...
Article
Cerebral ring enhancing lesions
The differential for peripheral or ring enhancing cerebral lesions includes:
cerebral abscess
tuberculoma
neurocysticercosis
metastasis
glioblastoma
subacute infarct/hemorrhage/contusion
demyelination (incomplete ring)
tumefactive demyelinating lesion (incomplete ring)
radiation necrosi...
Case
Inflammatory myofibroblastic tumor
Published
07 Aug 2009
89% complete
CT
Case
Apical post-radiotheraphy change
Published
23 Aug 2009
72% complete
X-ray
Case
Lynch syndrome: duodenojejunal adenocarcinoma
Published
23 Aug 2009
65% complete
X-ray
CT
Article
Bethesda criteria of hereditary non-polyposis colorectal cancer
The Bethesda criteria are an alternative to the Amsterdam criteria for the clinical diagnosis of hereditary non-polyposis colorectal cancer (HNPCC).
Diagnosis of HNPCC is made if any of the following criteria are fulfilled:
Amsterdam criteria are met
2 or more HNPCC related malignancies
pa...
Case
Rectal cancer - T4 invading into prostate
Published
31 Aug 2009
59% complete
MRI
Case
Rectal cancer - T3 N2
Published
31 Aug 2009
50% complete
MRI
Article
Small bowel lymphoma
Small bowel lymphoma is one of the most common small bowel malignancies, accounting for ~25% of all primary small bowel malignancies, and ~40% of all primary gastrointestinal lymphomas.
Epidemiology
Small bowel lymphoma is most commonly secondary extranodal involvement in widespread systemic l...
Case
Rectal cancer - T3
Published
08 Sep 2009
74% complete
MRI
Case
Inguinal node metastasis and wandering spleen
Published
14 Sep 2009
92% complete
CT
Article
Osteopoikilosis
Osteopoikilosis is a sclerosing bony dysplasia characterized by multiple benign enostoses. It is a rare inherited benign condition incidentally found on skeletal x-rays. Its importance is predominantly in correct diagnosis so that it is not mistaken for pathology.
Epidemiology
The bone islands...