primary diffuse large B-cell lymphoma of appendix

Primary appendiceal lymphomas are exceedingly rare neoplasms mostly ignored until histological examination of appendices. We report a case of primary appendiceal lymphomas in a 22-year-old man. Appendectomy was performed under diagnosis of acute appendicitis. Macroscopically a fleshy intramural mass in middle third portion of appendix was observed. Microscopic examination revealed a diffuse large B-cell lymphoma inducing acute appendicitis. Further medical workups of the patient was unremarkable and the disease was restricted to appendix. After initial simple appendectomy, the patient underwent adjuvant chemotherapy and was healthy after two years. This case emphasized great value of detailed histological examination of all appendices