All of the following hereditary conditions predispose to CNS tumors, except
Xeroderma pigmentosum (XP) is a genetic disorder in which there is a decreased ability to repair DNA damage such as that caused by ultraviolet (UV) light. Symptoms may include a severe sunburn after only a few minutes in the sun, freckling in sun exposed areas, dry skin and changes in skin pigmentation.it doesn't cause CNS tumors Ref Harrison20th edition pg 2675
Neurofibromatosis 1 & 2
Tuberous sclerosis
Von-Hippel-Lindau syndrome
Xeroderma pigmentosum
C.N.S