Renal Pelvis Transitional Cell Carcinoma, also known as transitional cell carcinoma of renal pelvis, is related to papillary transitional carcinoma and small cell carcinoma. An important gene associated with Renal Pelvis Transitional Cell Carcinoma is UPK3A (Uroplakin 3A), and among its related pathways/superpathways are Immune response Fc epsilon RI pathway and Extrafollicular and follicular B cell activation by SARS-CoV-2. The drugs Bevacizumab and Nivolumab have been mentioned in the context of this disorder. Affiliated tissues include endothelial and lung, and related phenotype is neoplasm.