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- Ko Tomishima, Toshio Fujisawa, Yuki Fukumura, Mako Ushio, Sho Sato, Nozomi Amano, Ayato Murata, Hironori Tsuzura, Shunsuke Sato, Kouhei Matsumoto, Yuji Shimada, Takuya Genda, and Hiroyuki Isayama.
- Department of Gastroenterology, Graduate School of Medicine, Juntendo University, Japan.
- Intern. Med. 2020 Jan 1; 59 (19): 2383-2389.
AbstractFollow-up computed tomography revealed a 40-mm pancreatic tail cyst in a 59-year-old man with type 1 diabetes mellitus. An intraductal papillary mucinous neoplasm was suspected; mucinous cystic neoplasm (MCN) was not considered because the patient was a man. During follow-up, cyst infection occurred but was improved by conservative treatment. At the 24-month follow up examination, cyst nodules had developed, corresponding to an increase in the carbohydrate antigen 19-9 level. Mucinous cystadenocarcinoma (MCC) was diagnosed pathologically based on distal pancreatectomy. A diagnosis of male MCN/MCC is often delayed, which may lead to a poor prognosis. MCN infection is also rare and poorly recognized. We observed an atypical male case of MCN/MCC.
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