Primary superficial carcinomas of the duodenum.
D000230:Adenocarcinoma / Q000473:pathology*; D002288:Adenocarcinoma, Mucinous / Q000473:pathology*; D000368:Aged; D000818:Animals; D001344:Autopsy; D003937:Diagnosis, Differential; D004379:Duodenal Neoplasms / Q000473:pathology*; D005260:Female; D005753:Gastric Mucosa / Q000473:pathology; D006801:Humans; D008875:Middle Aged