Collision tumors are rarely reported in patients with von Hippel-Lindau (VHL) disease. even though VHL patients often present with multi-organ tumor syndromes. like hemangioblastoma and renal cell carcinoma (RCC). Hemangioblastoma is rarely located in a supratentorial location. https://chefesquipmenters.shop/product-category/cafeteria-fast-food-trays/