- A Case of Paraduodenal Pancreatitis and Immunohistochemical Analysis.
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Mi Jung Kwon, Eun Sook Nam, Seong Jin Cho, Hyung Sik Shin, Joo Seop Kim, Doo Jin Kim
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Korean J Pathol. 2010;44(2):199-203.
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DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.2.199
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 Abstract
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- Paraduodenal pancreatitis (PP) is a rare, distinct form of chronic pancreatitis, and it is related to alcohol abuse in middle-aged men. A 36-year-old man with a history of chronic recurrent pancreatitis for 4 years and alcohol abuse for 15 years presented with abdominal pain. Computed tomography revealed a multilocular cystic mass 3.2 x 3 x 3 cm in size and it was located within the muscular layer of the duodenal wall. The cysts were lined by a single layer of eosinophilic cuboidal epithelial cells that stained positively for mucin (MUC)1, MUC6, cytokeratin (CK)7 and CK19 and they stained negatively for MUC2, MUC5AC and CK5/6. Mild, chronic inflammatory reaction around the cystic wall, Brunner's gland hyperplasia and several clusters of heterotopic pancreatic tissue were noted. We report here on a case of PP and we demonstrated that the pancreatitis was of pancreatic ductal cell origin according to the MUC and CK expression patterns we observed on the immunohistochemical analysis.
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