Breast Mucosa-Associated Lymphoid Tissue Lymphoma

**Semantic type:** Neoplastic Process

**Definition:** An extranodal marginal zone B-cell lymphoma of mucosa associated lymphoid tissue that arises from the breast as a primary tumor.

**Synonyms:** - Breast Extranodal Marginal Zone Lymphoma of Mucosa-Associated Lymphoid Tissue - Breast MALT lymphoma