KRT7 and malignant epithelioid mesothelioma: Peritoneal biopsy showed neoplastic cells which stained positively on immunohistochemistry with D2–40 (podoplanin), WT1 (Wilms tumour-1), Cytokeratins 7 and 5/6 (CK7 and CK5/6) but negatively with BerEP4, consistent with metastatic malignant epithelioid mesothelioma.