Duodenal Carcinoma in a Patient with an Annular Pancreas: Rarity Personified

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“…It has been described 14times in the medical archives (five pancreatic carcinomas, six ampullary carcinomas, two cholangiocarcinomas, and one in sulinoma). [9][10][11][12][13][14][15][16][17][18][19][20] A review of 151 cases of annular pancreas in Japan by Ladd et al 11 revealed an association with malignant tumors of the duodenopancreato-biliary system in 15 patients (five cholangiocarcinomas, four gallbladder carcinomas, four duodenal, and two pancreatic carcinomas). Herein we report a case of AP associated with a PDC, where both the rarities presented in a single patient.…”