Which of the following statements about Von-Hippel Lindau syndrome is true
Harrison's principles of internal medicine 17th edition. *In VHL somatic mutation of normal allele leads to retinal angiomas, CNS hemangioblastoma,pheochromocytomas and multicentric clear cysts,hemangiomas and adenomas of kidney
Multiple tumors are rarely seen
craniospinal hemangioblastomas are common
Superatentorial lesions are common
Tumors of Schwann cells are common
C.N.S