Pseudolymphama of the stomach is an unusual benign condition that is frequently confused with true gastric lymphoma. The clinical manifestations and endoscopic, radiologic, and biopsy findings are not generally helpful in making this diagnosis preoperatively. Furthermare, the distinction between lymphoma and pseudolymphoma may be difficult to make on the basis of frozen section and, occasionally on permanent histologic sections. Distinguishing histologic features of paeudolymphoma are (1) formation of true germinal center (2) presenc of a polymorphous inflammatory infiltrate, and (3) absence of lymph nodal involvem#ent by lymphoma. Rec.ntly histoimmunological methods was developed to differentiate pseudolymphoma from true malignant lymphoma. Distinction of these benign lesions from malignant lymphomas is important so that unnecessary radical surgery and postoperative radiation therapy or chemotherpy are avoided. We report three cases of gastric pseudolymphoma, fulfilling the pathologic criteria and review the litcrature to illustrate the feature of gastric pseudolymphoma.
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