<prompt> Cerebellar hemangioblastoma and retinal tumors are seen in:Von Hippel Lindau syndromeNeurofibromatosis type 1Tuberous sclerosisNeurofibromatosis type 2  <response>: Ref: Chapter 28. CNS. page - 1343: Robbins and Cot ran Pathologic Basis of Disease: 8th editionExplanation:The Von Hippel Lindau gene VHL is tumor suppressor gene located on Chromosome 3p25-p26 and down-regulates expression of vascular endothelial growth factor; hence its dysregulation is associated with hemangioblastomas and retinal tumors.The neurofibromatosis type 1 Chr. 17 is associated with:Optic nerve gliomasLisch nodules pigmented nodules of the irisCafe au lait spots cutaneous hyperpig- mented maculesNeurofibromatosis type 2 Chr. 22 is associated with:8th nerve schwannomasMultiple meningiomasGliomasEpendymoma of spinal cordTuberous sclerosis complex: It is associated with:Cortical tubersSubependymal nodulesSubependymal giant cell astrocytomasRenal angiomyolipomasRetinal glial hamartomasPulmonary lymphangioleiomyomatosisCardiac rhabdomyomasShagreen patches cutaneous leathery thickeningsAsh-leaf patches hypopigmented areasSubungual fibromas 