Perineurioma of the kidney. Report of a case with histologic, immunohistochemical, and ultrastructural studies.
We report a perineurioma of the kidney. A 66-year-old woman had a renal mass discovered as an incidental finding during the evaluation of hypertension and proteinuria. This neoplasm radiographically mimicked renal cell carcinoma, but the diagnosis of perineurioma was confirmed with histologic and ultrastructural studies. Perineurioma is a recently described, rare, benign tumor of the peripheral nervous system composed of perineurial cells. Histologically, the differential diagnosis includes low-grade fibromyxoid sarcoma and other myxoid tumors.
Department of Pathology, Olive View Medical Center, Sylmar, Calif.
D G
DG
Kahn
T
T
Duckett
S M
SM
Bhuta
D000368:Aged; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D007680:Kidney Neoplasms / Q000378:metabolism / Q000473:pathology* / Q000648:ultrastructure; D008279:Magnetic Resonance Imaging; D008854:Microscopy, Electron; D009442:Neurilemmoma / Q000378:metabolism / Q000473:pathology* / Q000648:ultrastructure