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  • Title: Variable response of CNS hemangioblastomas to Pazopanib in a single patient with von Hippel-Lindau disease: Case report.
    Author: Taylor DG, Ilyas A, Mehta GU, Chen CJ, Schiff D, Oldfield EH, Asthagiri AR.
    Journal: J Clin Neurosci; 2018 Apr; 50():154-156. PubMed ID: 29396065.
    Abstract:
    Von Hippel-Lindau (VHL) disease is a multisystem genetic disease, the cardinal manifestations of which include central nervous system hemangioblastomas (CNS HB), renal cell carcinomas (RCC), and pheochromocytoma. Tumorigenesis in VHL of both RCC and CNS HB occurs secondary to downstream effects of a mutated or absent VHL protein. Treatment of RCCs with tyrosine kinase inhibitors (TKIs) such as Pazopanib is now first line therapy, but their effect on VHL-associated CNS HBs remains unknown. We report the use of Pazopanib in a patient with VHL disease for treatment of RCC who also harbored multiple CNS HBs. Following initiation of treatment, a large cervical and a lumbar spinal HB regressed in size while the remaining CNS HBs exhibited stable or progressive disease. These findings highlight the multiplicity of factors contributing to hemangioblastoma development, even among tumors with a common germline mutation, and the potential limitations of TKIs, but additionally this report supports the conservative management of asymptomatic VHL patients with spinal HBs whereby tumor response to TKI treatment may alleviate or postpone the need for surgery.
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