Ureteral Lymphoma, also known as lymphoma of ureter, is related to extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue and b-cell lymphoma. An important gene associated with Ureteral Lymphoma is MME (Membrane Metalloendopeptidase), and among its related pathways/superpathways are Hematopoietic Stem Cells and Lineage-specific Markers and Extrafollicular and follicular B cell activation by SARS-CoV-2. Related phenotype is immune system.