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Presented by Ralph Hruban, M.D. and prepared by Robert E LeBlanc, M.D.
Case 2: Abdominal pain led to imaging which revealed a cystic lesion in the head of the pancreas.
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Question 1 of 1
1. Question
Week 524: Case 2
Abdominal pain led to imaging which revealed a cystic lesion in the head of the pancreas. A pancreatoduodenectomy was performed.images/RHH6 01.jpg
images/RHH6 02.jpg
images/RHH6 03.jpg
images/RHH6 04.jpgCorrect
Answer: Duodenal diverticulum
Histology: The cystic lesion is composed of mature intestinal-type epithelium. This epithelium has retained the architecture of the normal duodenal mucosa.
Discussion: Duodenal diverticuli sometimes extend into the pancreas and when they do they can mimic an intraductal papillary mucinous neoplasm. Clues to the diagnosis include the demonstration of an orifice in the duodenum leading into the cystic lesion, an absence of atypia and retention of the architecture of the normal duodenal mucosa.
Incorrect
Answer: Duodenal diverticulum
Histology: The cystic lesion is composed of mature intestinal-type epithelium. This epithelium has retained the architecture of the normal duodenal mucosa.
Discussion: Duodenal diverticuli sometimes extend into the pancreas and when they do they can mimic an intraductal papillary mucinous neoplasm. Clues to the diagnosis include the demonstration of an orifice in the duodenum leading into the cystic lesion, an absence of atypia and retention of the architecture of the normal duodenal mucosa.
