tokens: von Hippel - Lindau ( VHL ) disease is an autosomal dominantly inherited cancer syndrome predisposing to a variety of tumor types that include retinal hemangioblastomas , hemangioblastomas of the central nervous system , renal cell carcinomas , pancreatic cysts and tumors , pheochromocytomas , endolymphatic sac tumors , and epididymal cystadenomas [ W .