Tumors that typically arise in soft tissue are being identified with increasing frequency in the kidney, specially by molecular tools ¹. They show histopathological features no different from their soft tissue counterparts. Genetic confirmations ^2,3 remain essential for exclusion or confirmation when sarcomas are identified resembling those typically found in soft tissues.  Therefore, more comprehensive details will be available in the WHO 2020 Soft tissue and Bone Tumors. PAX8, which is a marker of renal epithelial tumors, is negative in renal sarcomas.