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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.
hemangioblastoma of the cerebellum, often cystic. An autosomal-dominant form is associated with von Hippel-Lindau disease.