Bilateral Renal Involvement From a Primary Brain Tumor

Abstract

We describe only the third case of bilateral renal metastases from a primary brain hemangiopericytoma (HPC) in a 58-year-old male. These rare malignant tumors were first described in 1942 and originate from pericytes located around capillaries. They can therefore originate from anywhere in the body. They may be confused with primary renal cell carcinoma when they metastasize to the kidneys. Surgical management remains the mainstay of treatment for renal involvement.

Bilateral renal involvement by solitary fibrous tumor – Report of a case in the post-WHO/2016 era

“…At least in the meninges, former-HPCs have higher metastatic potential than classic SFTs, frequently as late recurrences, like our case. We found three previous reports of meningeal HPC with bilateral renal metastasis 2 , 3 , 4 : all males between 37 and 58 years old, progressing after 10–14 years of primary excision.…”