MALT lymphoma staging

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Sujit Routray, M.D. [2]

Overview

The staging of MALT lymphoma is based on two staging systems: Ann Arbor staging system and the TNM staging system.^[1]

The staging of MALT lymphoma is based on two staging systems: Ann Arbor staging system and the TNM staging system.^[1]

The Ann Arbor staging system has been modified for gastric MALT lymphoma.^[1]


Stage	Description

Stage I	Tumor is confined to the stomach without spread to the lymph nodes
Stage II	Tumor extends into the abdomen and has spread to the lymph nodes. II1: Cancer has spread to local lymph nodes (such as paragastric nodes) II2: Cancer has spread to distant lymph nodes (such as para-aortic, pelvic, or inguinal nodes)
Stage IIE	Tumor penetrates the serosa to spread to adjacent organs or tissues	Stage IV	Disseminated spread to extranodal sites or spread to the lymph nodes above the diaphragm (supradiaphragmatic nodal involvement)