<prompt> A patient was surgically treated for bilateral pheochromocytoma. He has staed developing gait abnormality hence MRI head was done. What is the probable diagnosis?Autoimmune polyglandular syndromeMultiple endocrine neoplasia type 3Multiple endocrine neoplasia type 4Von Hippel Landau Syndrome  <response>: Bilateral pheochromocytoma with presence of CNS cerebellar hemangioblastomas is suggestive of diagnosis of Von Hippel Landau Syndrome VHL. It is an Autosomal dominant disorder that predisposes to: Retinal and cerebellar hemangioblastoma. RCC Pancreatic neuroendocrine disorders. Endolymphatic sac tumours. Multiple pancreatic and renal cysts. 