You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is All is true about von Hippel Lindau syndrome except: and explain in detail?
C i.e. Tumors of Schwann cells are common Von Hippel-Lindau (VHL) syndrome is associated with multiple hemangioblastomasQ of infratentorial craniospinal axis, retina and pancreas. Supratentorial HB are uncommonQ.