Breast Lymphoma, also known as malignant lymphoma of breast, is related to intravascular large b-cell lymphoma and lymphoma, mucosa-associated lymphoid type. An important gene associated with Breast Lymphoma is PIBF1 (Progesterone Immunomodulatory Binding Factor 1), and among its related pathways/superpathways are NF-kappaB Signaling and Extrafollicular and follicular B cell activation by SARS-CoV-2. Affiliated tissues include breast and lymph node, and related phenotypes are cellular and neoplasm