Appendicular tumors are rare, and lymphoma of the appendix is rarer. A 50‑year‑old female patient presented with vague abdominal discomfort and lump in the right iliac fossa. The diagnosis of diffuse large B‑cell lymphoma was made after laparotomy and histopathological examination (HPE) supported by immunohistochemistry study. For appendicular neoplasms diagnosed postoperatively, including lymphoma, a meticulous grossing and HPE cannot be over emphasized. In case of wall thickening of >2.50- 3 cm detected by the computed tomogram scan, the possibility of a neoplasm or lymphoma in particular should be included as the differential diagnosis irrespective of the clinical presentation.