Colonoscopy with one detected polyp in the transverse colon

The video shows 49 year old male with suspected food allergy. During colonoscopy, one polyp in the transverse colon was detected. The histology showed a lymphoid follicle and tubular adenoma with LGIEN.
Two aspects in the lesion, the central pit pattern is almost invisible under white light endoscopy and comes out much clearer under i-scan 1 (surface enhancement for detection) and i-scan 2 (tone enhancement for characterization).

Courtesy of Prof. Timo Rath from Erlangen University Hospital, Germany