Hemangioblastoma is commonly found in the posterior cranial fossa and accounts for 1.0%–2.5% of intracranial tumors. This tumor is benign and has well-defined borders. Approximately 70% of cerebellar hemangioblastomas are cystic with a tumor nodule. These nodules are highly vascularized and appear reddish in color, while the cyst walls consist of cerebellar tissue rather than tumor tissue. This condition has a familial tendency and may be part of von Hippel-Lindau disease.
CT scans typically reveal low-density cystic or solid lesions, with significant enhancement of the solid tumor portion after contrast administration. MRI often shows flow voids in the solid tumor areas, and surrounding brain tissue may exhibit low-signal regions due to hemosiderin deposition. Cerebral angiography can reveal dense networks of blood vessels. Complete surgical resection of the tumor generally results in a cure.