Paraskevas, G Annular pancreas in adults: embryological development, morphology and clinical significance. [electronic resource] - Surgical and radiologic anatomy : SRA 2001 - 437-42 p. digital Publication Type: Case Reports; Journal Article ISSN: 0930-1038 Standard No.: 10.1007/s00276-001-0437-8 doi Subjects--Topical Terms: AdultAgedChoristoma--complicationsDuodenal Diseases--diagnosisDuodenal Obstruction--diagnostic imagingFemaleHumansMalePancreas--embryologyRadiography