<prompt> Prepyloric or channel ulcer in the stomach is termed astype 1type 2type 3type 4  <response>: Type 1- in the antrum, near the lesser curvature, type 2: combined gastric ulcer in the body with duodenal ulcer, type 3. Prepyloric, type 4 gastric ulcer in the proximal stomach of the cardia type 5- ulcer anywhere associated with NSAIDs. SRB edition 5 page no. 824 