<prompt> All of the following are true about hemangioblastoma except?Most common primary intra-axial tumor in the adult posterior fossaSolid or cystic with a mural nodulePolycythemia due to increased erythropoietin productionPremalignant condition  <response>: Hemangioblastoma - MC primary intra- axial tumor in the adult posterior fossa - Occur almost exclusively in the posterior fossa cerebellum - Solid or cystic with a mural nodule - May occur sporadically, and 20 of cases may be associated with von Hippel-Lindau disease hemangioblastomas, retinal angiomas, RCC, pheochromocytoma, renal and pancreatic cysts. - It is a benign tumor - Present with Polycythemia due to increased erythropoietin production 