Abstract
We present two cases of von Hippel–Lindau (VHL) disease-associated hemangioblastomas in the CNS treated with the newly approved HIF-2α inhibitor, belzutifan. The first case is a 31-year-old female with confirmed pathogenic germline VHL mutation who presented with multiple hemangioblastomas. The patient was started on belzutifan, and a brisk reduction in perilesional edema was observed after 2 months of treatment. The second patient is a 30-year-old male with familial VHL disease. Imaging revealed multiple cerebellar hemangioblastomas, and follow-up imaging after three cycles of belzutifan revealed a reduction in perilesional edema. Both patients tolerated belzutifan well, with only anemia and fatigue. We highlight our initial experience and early imaging findings associated with belzutifan in VHL disease-associated CNS hemangioblastomas.
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