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MALT淋巴瘤是发生在黏膜或腺体的低度恶性淋巴瘤 ,是在固有的和受到感染后人体自动免疫启动形成获得性淋巴组织发生的 ,预后良好。其组织形态特点为 :①中心细胞样细胞或单核样B细胞围绕反应性滤泡 ,克隆性 (单一性 )弥漫增生浸润 ,易见浆样分化 ;②肿瘤细胞侵入滤泡内形成滤泡殖入 ,部分殖入、全部殖入和滤泡内浆样分化 ;③肿瘤细胞侵蚀固有腺体形成淋巴上皮病变 ,可出现高度恶性转化
MALT lymphoma is a low-grade lymphoma that occurs in the mucosa or gland. It occurs spontaneously after the innate and infected human body has developed an acquired lymphoid tissue with a favorable prognosis. Its morphological features are as follows: ① central cell-like cells or mononuclear B cells around reactive follicular, clonality (simplex) diffuse hyperplasia infiltration, easy to see pulp-like differentiation; ② tumor cells invade the formation of follicular follicles Into, part of the colonization, all colonization and follicular plasma-like differentiation; ③ tumor cells erode the inherent gland formation of lymphoid epithelial lesions, there may be a high degree of malignant transformation