Case report of a primary cystic sarcoma of the kidney, demonstrating fibrohistiocytic, osteoid, and cartilaginous components (malignant mesenchymoma).
The first case of a primary, cystic sarcoma of the kidney, containing fibrohistiocytic, osteoid, and cartilaginous elements (malignant mesenchymoma) is reported. The neoplasm occurred in a 29-year-old white woman, who had a right upper quadrant mass at least four years prior to presentation. Light and electron microscopy findings are presented. A 14-month follow-up revealed an extensive tumor recurrence in the right perirenal area with no apparent metastastic disease.
D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D052177:Kidney Diseases, Cystic / Q000473:pathology* / Q000601:surgery / Q000648:ultrastructure; D008637:Mesenchymoma / Q000473:pathology*; D009364:Neoplasm Recurrence, Local; D009392:Nephrectomy; D012509:Sarcoma / Q000473:pathology*