<prompt> What will be the likely diagnosis in a thiy year old male presenting with epigastric pain radiating to back that wakes him up at night and is relieved by consuming food. He has a past history of surgery for a perforated duodenal ulcer, treated with omental patch and proton pump inhibitors and analgesics:Atrophic GastritisDuodenal UlcerGastric UlcerChronic Pancreatitis  <response>: Epigastric pain relieved by food that awakens the patient of night when stomach is empty suggests a diagnosis of duodenal ulcer. Gastric ulcer pain is exacerbated by food and usually does not awaken the patient at night. Pancreatic pain is not relieved by food is typically relieved by bending forwards worsened on lying down. Ref: Bailey and Love Sho Practice of Surgery 24th Edition, Page 1038-9; Current Diagnosis Treatment in Surgery CSDT 13th Edition, Page85. 