Concurrent Hepatic and Renal Metastases of a Meningeal Hemangiopericytoma: A Case Report and Review of the Literature

Introduction: Hemangiopericytoma (HPC) is a rare phenotype of solitary fibrous tumors. While local recurrence and metastasis common, concurrent renal hepatic lesions have seldom been reported. We present the case patient with both metastatic HPC, 14-years following successful meningeal HPC resection. Case Presentation: A 65-year-old female history resected in 2005, presented to her PCP 2019 complaints persistent epigastric pain. Abdominal CT demonstrated large hypervascular mass left kidney lobe liver. Biopsy liver was consistent HPC. Left hepatectomy nephrectomy were performed. Final pathology 7.5 x 7 6 cm well-circumscribed an 18 15 10.5 central necrosis hemorrhage Immunohistochemistry for STAT6 performed on confirmed diagnosis Conclusion: This unique due simultaneous extramedullary metastases involving To our knowledge, there only two other reported cases presenting metastases. highlights importance ongoing research regarding optimal treatment strategies effective surveillance patients given potentially metastatic, complex, recurrent nature disease.