Items tagged “neoplasm”
39 results found
Article
Butterfly glioma
Butterfly gliomas are high-grade astrocytomas, IDH-mutant or glioblastomas, IDH-wildtype that cross the midline via the corpus callosum. Other white matter commissures are also occasionally involved. The term butterfly refers to the symmetric wing-like extensions across the midline.
Butterfly ...
Article
Lymphomas of the central nervous system
Lymphomas of the central nervous system, the most common of which is primary diffuse large B-cell lymphoma of the CNS, are the second most common primary brain tumor after gliomas 17. By definition, there is no co-existing systemic disease at the time of diagnosis, distinguishing it from CNS inv...
Article
Dysembryoplastic neuroepithelial tumor
Dysembryoplastic neuroepithelial tumors (DNET) are benign (WHO Grade 1) slow growing glioneuronal tumors arising from either cortical or deep grey matter. They are considered part of the heterogeneous group of tumors known as long-term epilepsy-associated tumors (LEATs).
The vast majority of DN...
Article
Ependymoma
Ependymomas represent a relatively broad group of glial tumors most often arising from the lining of the ventricles of the brain or the central canal of the spinal cord. They account for ~5% of all neuroepithelial neoplasms, ~10% of all pediatric brain tumors and up to 33% of brain tumors occurr...
Article
Gastrointestinal tract lipomas
Gastrointestinal tract lipomas are not uncommon and can be found anywhere along the entire length of the gastrointestinal tract.
For a more specific discussion, please refer to the articles on:
esophageal lipoma
gastric lipoma
Epidemiology
Gastrointestinal tract lipomas are most fr...
Article
Meningioangiomatosis
Meningioangiomatosis is a rare meningovascular hamartomatous plaque-like or mass-like cortical lesion extending to the overlying leptomeninges (crosses the boundary between intra- and extra-axial lesions). Given its frequent cortical location, often patients present with seizures.
Epidemiology
...
Article
Meningioma
Meningiomas are extra-axial tumors and represent the most common tumor of the meninges. They are a non-glial neoplasm that originates from the meningocytes or arachnoid cap cells of the meninges and are located anywhere that meninges are found, and in some places where only rest cells are presum...
Case
Lung carcinoma - on ultrasound
Published
01 Apr 2009
60% complete
Ultrasound
Article
Sonographic features of malignant lymph nodes
Lymphadenopathy is quite common, and it can be challenging to differentiate malignant lymphadenopathy from reactive nodal enlargement.
Several gray scale and color Doppler features favor malignancy in a lymph node 1,7-9.
Gray scale parameters that favor malignancy
size: larger - more likely m...
Case
Klatskin tumor
Published
29 Dec 2021
77% complete
X-ray
CT
Case
Maxillary osteosarcoma
Published
12 Aug 2009
62% complete
CT
Case
Juvenile nasopharyngeal angiofibroma
Published
19 Sep 2010
39% complete
CT
DSA (angiography)
Case
Islet-cell tumor of the pancreas
Published
19 Dec 2010
77% complete
CT
Article
Malignant peritoneal mesothelioma
Malignant peritoneal mesothelioma is an uncommon primary tumor of the peritoneal lining. It shares epidemiological and pathological features with - but is less common than - its pleural counterpart, which is described in detail in the general article on mesothelioma. Other abdominal subtypes (al...
Case
Invasive ductal breast carcinoma on CT
Published
13 Mar 2013
80% complete
CT
Case
En plaque meningioma - sphenoid wing
Published
12 Apr 2013
77% complete
MRI
Case
Glioblastoma NOS
Published
21 Apr 2013
95% complete
MRI
Case
Lhermitte-Duclos disease
Published
23 Apr 2013
68% complete
MRI
Case
Diffuse astrocytoma NOS
Published
03 May 2013
83% complete
MRI
Case
Glioblastoma NOS (corpus callosum)
Published
14 May 2013
68% complete
MRI
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