Mucinous Cystadenocarcinoma of the Pancreas with Cyst Infection in a Male Patient

Abstract

Follow-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.

Intralobular distribution of ovarian-like stroma in pancreatic mucinous cystic neoplasms: a discussion on its tumorigenesis

“…We also thank Ms. Shuko Nojiri, Associate Professor at the Medical Technology Innovative Center and Clinical Research and Trial Center, Juntendo University, for statistical advice. One case of MCN (the case in a male patient) in this study cohort was reported as a case report by Tomishima et al 20 .…”

Intralobular Distribution of Ovarian-like Stroma in Pancreatic Mucinous Cystic Neoplasms: Hypothesis on Its Tumorigenesis

“…We also thank Ms. Shuko Nojiri, Associate Professor, Medical Technology Innovative Center, Clinical Research and Trial Center, Juntendo University, for statistical advice. One case of MCN (male case) in this study cohort was reported as a case report by Tomishima et al 19 Author contributions Y.F., Y.K., Y.M., M.Tak. and M.To.…”