<prompt> Most common site of Curlings ulcerIleumStomachDuodenumEsophagus  <response>: Duodenum Ref Robbins 7e p819; Curlings ulcer is acute peptic ulcer of the duodenum described in 1842 by Curling as a complication of burns. Cushings ulcer is acute peptic ulcer of stomach, duodenum and esophagus seen in intracranial injury, operations or tumor. 