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hemangioblastoma
(redirected from hemangioblastomas)

   Also found in: Wikipedia 0.01 sec.
hemangioblastoma /he·man·gio·blas·to·ma/ (he-man″je-o-blas-to´mah) a benign blood vessel tumor of the cerebellum, spinal cord, or retina, consisting of proliferated blood vessel cells and angioblasts.
he·man·gi·o·blas·to·ma (h-mnj--bl-stm)
n.
A benign, slowly growing, cerebellar neoplasm composed of capillary-forming endothelial cells. Also called angioblastoma.

hemangioblastoma
[hēman′jē·ōblastō′mə] pl. hemangioblastomas, hemangioblastomata
Etymology: Gk, haima + angeion, vessel, blastos, germ, oma, tumor
a brain tumor composed of a proliferation of capillaries and of disorganized clusters of capillary cells or angioblasts, usually occurring in the cerebellum.

hemangioblastoma [he-man″je-o-blas-to´mah]
a benign blood vessel tumor of the cerebellum, spinal cord, or retina, consisting of proliferated blood vessel cells and angioblasts. Those arising in the cerebellum (cerebellar hemangioblastoma) may be cystic and associated with von hippel-lindau disease. Called also angioblastoma.
cerebellar hemangioblastoma hemangioblastoma of the cerebellum, often cystic; an autosomal dominant form is associated with von Hippel-Lindau disease.


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It predisposes patients to multiple hemangioblastomas of the central nervous system, pheochromocytomas, renal cysts, renal cell and other carcinomas, and pancreatic cysts.
There are some inherited disorders: ataxia-telangiectasia which is associated with medulloblastoma, von Hippel-Lindau disease with cerebellar hemangioblastomas, and then metastatic tumors, tumors that spread to the brain from elsewhere that will cause an ataxia.
The diagnosis is based on the presence of multiple hemangioblastomas of the central nervous system (CNS), 1 hemangioblastoma and a visceral manifestation, or 1 central or visceral manifestation in a first-degree relative.
 
 
 
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