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Table 1 Differential positive immunohistochemical markers in CCSK and other undifferentiated renal neoplasm [1, 22, 42,43,44,45,46,47,48,49]

From: Clear cell sarcoma of the kidney in a 62-year-old patient presenting with generalized pruritus

Undifferentiated renal neoplasm Positive markers
CCSK vimentin, CD56
Blastema-predominant Wilms’ tumor vimentin, NSE, desmin, WT1, cytokeratin cocktail CK22
PNET CD99, NSE, vimentin, S100, synaptophysin, CD57
MRTK Vimentin, cytokeratin, EMA, S100, NSE, synaptophysin, CD57
Cellular CMN vimentin, desmin, muscle actin (HHF-35), alpha Smooth muscle Actin
  1. CCSK clear cell sarcoma of the kidney, PNET primitive neuroectodermal tumor, MRTK malignant rhabdoid tumor of kidney, CMN congenital mesoblastic nephroma, EMA epithelial membrane antigen, NSE neurone specific enolas