Fig. 4From: Complete response to combination therapy using nivolumab and ipilimumab for metastatic, sarcomatoid collecting duct carcinoma presenting with high expression of programmed death-ligand 1: a case reportHematoxylin and eosin staining of collecting duct carcinoma with sarcomatoid changes. Tissue sections were prepared from the nephrectomy specimens (original magnification ×100)Back to article page