PMC10230234_01
Haematoxylin-eosin staining and immunohistochemical staining of ureteral metastatic lung carcinoma (A-D), low-power histopathological examination slide of transverse section of the ureter with intramural involvement of lung cancer metastasis (x2, HE) (A), TTF1 positive nuclear staining in cancer cells (x2) (B), GATA3-positive nuclear staining in urothelial epithelium, negative in cancer cells (x2) (C), CK7-positive staining in urothelial epithelium and in cancer cells (x2) (D)
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F1
Tumour cells expressed CK7, TTF1, SMAD4, and PD-L1 (70% of cells) but not CK20, PAX8, GATA3, WT1, p63, p40, prostein, mucicarmine, synaptophysin, ROS1, or ALK-Bond (Fig. 1).