title: Heterotopic gastric mucosa accompanied by aberrant pancreas in the duodenum.
abstract: An operated case of a heterotopic gastric mucosa, accompanied by an aberrant pancreas tissue, in the bulb of the duodenum was reported. A 40-yr-old man complained of epigastralgia and was diagnosed to have a protruding lesion in the duodenum by roentgenological and endoscopic examinations. Partial excision of the duodenal wall including the mass was performed. Cut surface of the specimen showed a yellowish-whitish mass in the submucosal through the subserosal layers, which was covered by a papillary elevated mucous membrane. Histologically the mass was an aberrant pancreas of the Heinrich I-type and the mucous membrane covering the mass was a heterotopic gastric mucosa, consisting of completely developed fundic glands.
mesh_terms: D000328:Adult; D002828:Choristoma / Q000473:pathology*; D004379:Duodenal Neoplasms / Q000473:pathology*; D004386:Duodenum / Q000473:pathology*; D005753:Gastric Mucosa; D006801:Humans; D008297:Male; D010179:Pancreas