case_images: PMC8302384_01
case_images: Histological appearance of the tumour. Giant cell urothelial carcinoma comprising sheets of pleomorphic cells with admixed bizarre mononuclear and multinuclear giant cells ((a), haematoxylin and eosin x400) which were positive for pancytokeratin ((b), AE1/AE3 x400) admixed with areas of conventional urothelial carcinoma (c) and carcinoma in situ (d).
case_images: CRIU2021-8021947.001.jpg
case_images: PMC8302384_01_CRIU2021-8021947.001.jpg
case_images: fig1
case_images: Admixed bizarre mononuclear and multinuclear giant cells were seen (Figure 1(a)). The giant cells were positive for pancytokeratin (AE1/AE3) (Figure 1(b)). Areas of conventional urothelial carcinoma (Figure 1(c)) with overlying carcinoma in situ were present (Figure 1(d)).