Abstract
The gastrointestinal tract is the most common site of extranodal non-Hodgkin lymphoma. However, the incidence of primary rectal lymphoma is extremely rare. Among the primary gastrointestinal lymphomas, follicular lymphoma has been described as a rare disease. It is difficult to diagnose rectal lymphoma due to its variable growth patterns and inadequate biopsies. Majority of patients with rectal lymphoma have nonspecific symptoms or negative biopsies, often delaying the diagnosis. Our patient is a 62-year-old female. Two sessile and smooth subepithelial lesions with a yellowish normal mucosa were found on a screening colonoscopy. The initial mucosal biopsy finding was chronic inflammation, but we were highly suspicion of malignancy; we performed an endoscopic mucosal resection. Herein, we present a rare case of rectal follicular lymphoma diagnosed by endoscopic mucosal resection with a literature review.
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Fig. 1.
Colonoscopic findings. (A) 4 mm subepithelial lesion on 3cm from anal verge, 3 mm subepitheliallesion on 2 cm from anal verge. (B) Smooth subepithelial lesion with yellowish colored normal mucosa on 3 cm from anal verge.
![kjg-69-139f1.tif](/upload/SynapseXML/0028kjg/thumb/kjg-69-139f1.gif)