Question: A 71-year old asymptomatic man with diabetes mellitus type II, hypertension, chronic kidney disease stage III, chronic obstructive pulmonary disease without inhalation therapy and hyperlipidemia was scheduled for an elective control colonoscopy. He performed screening colonoscopy one year ago due to positive fecal immunochemical test. The control colonoscopy was scheduled because during the first examination small adenoma (< 5 mm, Paris type 0-IIa) was described in the transversal colon but was not found and thus resected during withdrawal.