Table 3.

GELA histologic grading system for post-treatment evaluation of gastric MALT lymphoma [29].

Score	Lymphoid Infiltrate	LEL	Stromal Changes	Clinical Significance
Complete histologic response (ChR)	Absent or scattered plasma cells and small lymphoid cells in LP	Absent	Normal or empty LP and/or fibrosis	Complete remission
Probable minimal residual disease (pMRD)	Aggregates of lymphoid cells or lymphoid nodules in LP/MM and/or SM	Absent	Empty LP and/or fibrosis	Complete remission
Responding residual disease (rRD)	Dense, diffuse, or nodular, extending around glands in LP	Focal or absent	Focal empty LP and/or absent	Partial remission
No change (NC)	Dense, diffuse, or nodular	Present, may be absent	No changes	Stable or progressive disease

GELA: Groupe d’Etude des Lymphomes de l’Adulte; LEL: lymphoepithelial lesion; LP: lamina propria; MALT: mucosa-associated lymphoid tissue; MM: muscularis mucosae; SM: submucosa.