<prompt> All of the following hereditary conditions predispose to CNS tumors, except:Neurofibromatosis 1 and 2Tuberous sclerosisVon - Hippel - landau syndromeXeroderma pigmentosum  <response>: Xeroderma pigmentosum is not a risk factor for brain tumor. Genetic abnormalities associated with brain tumors RL not in MTV GT RetinoblastomaQ Li-FraumeniQ NF-1 2Q MEN 1Q Turcots syndromeQ VHL syndromeQ Gorlin syndromeQ Tuberous sclerosisQ 