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- W2799431462 abstract "A 72-year-old man presented with abdominal pain and gastrointestinal bleeding. Upper endoscopy revealed 2 suspicious lesions, in the stomach and in the duodenum. Biopsy revealed type III gastric carcinoid and periampullary duodenal adenocarcinoma. Pancreaticoduodenectomy and partial gastrectomy were planned. During surgical exploration, gross examination of the liver revealed innumerable lesions (Figure A), suspicious for metastatic carcinoid, not detected on preoperative computed tomography or magnetic resonance imaging (Figure B). Multiple biopsies were obtained and frozen section interpretation was consistent with Meyenburg complexes. Pancreaticoduodenectomy and partial gastrectomy were performed. Final pathologic examination confirmed the frozen section findings. Meyenburg complexes are benign biliary microhamartomas. Histologically, they appear as cystic dilatations of the bile ducts surrounded by abundant fibrous stroma (Figure C). They may be observed on preoperative magnetic resonance imaging as hyperintense nodules, although they are often discovered incidentally intraoperatively. Meyenburg complexes are often multiple and may mimic the appearance of liver metastases. A few case reports suggest a malignant potential of these lesions; however, the incidence is unknown. This case shows that some apparently metastatic liver lesions can sometimes be benign, such as Meyenburg complexes, and can have important staging and treatment implications." @default.
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- W2799431462 date "2019-09-01" @default.
- W2799431462 modified "2023-09-27" @default.
- W2799431462 title "Incidental Finding of Benign Meyenburg Complexes" @default.
- W2799431462 doi "https://doi.org/10.1016/j.cgh.2018.04.057" @default.
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