Follicular non-Hodgkin lymphoma with primary colonic involvement.

We report the case of a 76-year-old female who underwent a colonoscopy for post-polypectomy follow-up. A nodular area was found in the proximal rectum that was suggestive of hyperplastic polyps by location and endoscopic appearance. Biopsies were taken due to its slightly atypical characteristics, with a final histological result of lymphoid aggregates.