THE NEURORADIOLOGY OF HEMANGIOBLASTOMAS OF THE CEREBELLUM

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Abstract
A series of cases of cerebellar hemangioblastomas investigated by angiography and in some cases encephalography and ventriculography is presented. The encephalographic appearances are nonspecific and only indicated the presence of a mass lesion in the cerebellum. The angiographic appearances are specific and the following classification is suggested: A.Dense nodule: 1. homogeneous, 2. central translucency; B. Tangle of vessels: 1. homogeneous, 2. central translucency. Enlarged feeding arteries and draining veins may be seen with either type. Cysts are often associated and cause appropriate vessel displacement. Cysts without angiiographically visible vascular lesions may occur. The posterior meningeal artery may be enlarged in response to the vascular tumor. The lesions may be multiple.

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