Items tagged “neoplasm”

37 results found
Article

Butterfly glioma

Butterfly gliomas are a high grade astrocytoma, usually a glioblastoma (WHO grade IV), which crosses 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.  Most freq...
Article

Primary CNS lymphoma

Primary CNS lymphomas (PCNSL) are relatively uncommon tumors, accounting for 2.5% of all brain tumors. By definition, there is no co-existing systemic disease at the time of diagnosis, distinguishing it from CNS involvement from systemic lymphoma (secondary CNS lymphoma). On imaging, PCNSL char...
Article

Dysembryoplastic neuroepithelial tumor

Dysembryoplastic neuroepithelial tumors (DNET) are benign (WHO Grade I) slow growing glioneuronal tumors arising from either cortical or deep grey matter. The vast majority are centered in cortical grey matter, arise from secondary germinal layers, and are frequently associated with cortical dys...
Article

Ependymoma

Ependymomas represent a relatively broad group of glial tumors most often arising from the lining 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 occurring...
Article

Gastrointestinal tract lipomas

Gastrointestinal tract lipomas are not uncommon and can be found anywhere along the entire length of the gastrointestinal tract.  Epidemiology Gastrointestinal tract lipomas are most frequently encountered between the ages of 50 and 70 years 3. Clinical presentation The majority of lipomas a...
Article

Meningioangiomatosis

Meningioangiomatosis is a rare meningovascular hamartomatous plaque like or mass like cortical lesions extending to the overlying lepomeninges (crosses the boundary between intra and extra axial lesions). Given its frequent cortical location, often patients present with seizures. It can be spora...
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

Lung
 Diagnosis possible
Dr Paresh K Desai
Published 01 Apr 2009
19% complete
Ultrasound
Article

Sonographic features of malignant lymph nodes

Lymphadenopathy is quite common, and it can be very difficult to differentiate malignant lymphadenopathy from reactive nodal enlargement. Several gray scale and color Doppler features favor malignancy in a lymph node. Gray scale parameters that favor malignancy size: larger-more likely malign...
Case

Maxillary osteosarcoma

Contrast CT
 Diagnosis probable
Dr Paresh K Desai
Published 12 Aug 2009
65% complete
CT
Case

Juvenile nasopharyngeal angiofibroma

Angiofibroma
 Diagnosis probable
Dr Hani Salam
Published 19 Sep 2010
35% complete
CTDSA (angiography)
Case

Islet-cell tumor of the pancreas

 Diagnosis almost certain
Dr Erik Ranschaert
Published 19 Dec 2010
77% complete
CT
Article

Peritoneal mesothelioma

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 subtypes (also discussed separat...
Case

Invasive ductal breast carcinoma on CT

 Diagnosis almost certain
Dr Saeed Soltany Hosn
Published 13 Mar 2013
80% complete
CT
Case

Meningioma (en plaque)

 Diagnosis almost certain
Dr Ahmed Abdrabou
Published 12 Apr 2013
77% complete
MRI
Case

Glioblastoma NOS

 Diagnosis certain
Dr Ahmed Abdrabou
Published 21 Apr 2013
95% complete
MRI
Case

Lhermitte-Duclos disease

 Diagnosis probable
Dr Ahmed Abdrabou
Published 23 Apr 2013
68% complete
MRI
Case

Diffuse astrocytoma NOS

 Diagnosis almost certain
Dr Ahmed Abdrabou
Published 03 May 2013
83% complete
MRI
Case

Glioblastoma NOS (corpus callosum)

 Diagnosis probable
Dr Ahmed Abdrabou
Published 14 May 2013
68% complete
MRI
Case

Renal cell carcinoma

 Diagnosis almost certain
Dr Ahmed Abdrabou
Published 19 May 2013
62% complete
CT

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