Neuroendocrine neoplasm of pancreas with cystic degeneration mimicking mucinous cystic neoplasm
- 115 Downloads
Endoscopic ultrasound is increasingly being used for evaluation of pancreatic diseases and pancreatic tumors. Among various pancreatic cystic lesions, cystic degeneration of pancreatic neuroendocrine neoplasm is of the challenge in making diagnosis. Although unique characteristic of each type of pancreatic cystic lesions has been proposed abundantly, typical morphology of cystic degeneration of pancreatic neuroendocrine neoplasm is still unclear. We, herein, reported a case of 66-year-old woman who was incidentally found to have a cystic lesion in the tail of pancreas upon screening transabdominal ultrasonography. A well-defined cystic lesion with rim calcification was noted on subsequent abdominal computed tomography. Endoscopic ultrasound revealed a markedly thick-wall cystic lesion containing solid nodule inside which was not enhanced following contrast-enhanced study. A mucinous cystic neoplasm was suspected and the patient was proceeded with distal pancreatectomy. A definite diagnosis of neuroendocrine neoplasm was confirmed after staining with synaptophysin and chromogranin A. We performed a meticulous review on current literatures focusing on endoscopic characteristics of pancreatic neuroendocrine neoplasms with cystic degeneration.
KeywordsPancreatic neuroendocrine neoplasm Cystic degeneration Pancreatic cystic lesion Endoscopic ultrasound Rim calcification
The authors declare that they have no competing interests and no funding was received for this case report.
Compliance with ethical standards
Conflict of interest
All authors declare that they have no conflict of interest.
All procedures followed have been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments.
Informed consent was obtained from the patient for being included in the report.
- 11.Koh YX, Chok AY, Zheng HL, et al. A systematic review and meta-analysis of the clinicopathologic characteristics of cystic versus solid pancreatic neuroendocrine neoplasms. Surgery. 2014;156(83–96):e2.Google Scholar