Abstract
This article presents the study of a 66-year-old man with an asymptomatic pancreatic mass detected incidentally 4 months earlier. A magnetic resonance imaging scan revealed 2 distinct cystic masses in the pancreas and the gastric antrum. Microscopically, the pancreatic lesion showed dilated cysts containing papillary structures lined by mucinous epithelium, which showed a loss of polarity, an increased nucleus-to-cytoplasm ratio, a prominent nucleolus, and high proliferation on immunostaining for Ki-67. The gastric lesion was composed of heterotopic pancreatic tissue surrounding a large dilated cyst that was lined with mucinous epithelium and contained a few intraluminal papillae.
Publication types
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Case Reports
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Research Support, Non-U.S. Gov't
MeSH terms
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Adenocarcinoma, Mucinous / metabolism
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Adenocarcinoma, Mucinous / pathology*
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Adenocarcinoma, Mucinous / surgery
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Aged
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Carcinoma, Pancreatic Ductal / metabolism
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Carcinoma, Pancreatic Ductal / pathology*
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Carcinoma, Pancreatic Ductal / surgery
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Cell Proliferation
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Choristoma*
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Diagnosis, Differential
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Disease-Free Survival
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Gastrectomy
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Humans
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Ki-67 Antigen / metabolism
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Magnetic Resonance Imaging
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Male
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Neoplasms, Multiple Primary / metabolism
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Neoplasms, Multiple Primary / pathology*
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Neoplasms, Multiple Primary / surgery
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Pancreas*
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Pancreatic Cyst / metabolism
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Pancreatic Cyst / pathology*
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Pancreatic Cyst / surgery
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Pancreatic Neoplasms / metabolism
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Pancreatic Neoplasms / pathology*
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Pancreatic Neoplasms / surgery
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Pancreaticoduodenectomy
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Stomach Diseases / metabolism
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Stomach Diseases / pathology*
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Stomach Diseases / surgery