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Pancreatic retention cyst: multi-modality imaging findings and review of the literature.
MedLine Citation:
PMID:  23291834     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
PURPOSE: To investigate the multi-modality imaging presentation of the pancreatic retention cyst (PRC) with pathologic correlation. METHODS: Imaging data including CT, MRI, endoscopic ultrasonography (EUS) and EUS guided fine needle aspiration (EUS-FNA), and endoscopic retrograde cholangiopancreatography (ERCP) in fifteen patients (five males and ten females; mean age, 44.5 years) with pathologically proven PRC were analyzed retrospectively, and imaging features were correlated with pathological findings. RESULTS: Sixteen PRCs of 15 patients were included in this study. The mean size of PRCs was 4.4 × 4.6 cm (range 0.5 × 0.6-8.1 × 10.1 cm). PRC were round (n = 11), oval (n = 2), or lobular (n = 3). Punctiform calcification of the wall on CT (n = 2), thin septa (n = 4), thin wall (n = 3), and dilation of upstream pancreatic duct (n = 6; mean diameter, 4.3 mm) were detected. Dilation of upstream pancreatic duct was smooth in five PRCs and irregular in one PRC with pancreatic duct with punctiform calcification. Communication of PRCs with pancreatic duct was seen in two patients (one on CT, one on ERCP). Pancreatic inflammation and neoplasm were detected in four and two patients, respectively. CONCLUSIONS: PRC typically presents as a well-defined, round cystic lesion, and different associated pathologic conditions including pancreatic inflammation and neoplasm may be detected in some patients on the multi-modality imaging examinations. Smooth dilation of upstream pancreatic duct with uncommon communication to the cyst may be helpful for the differentiation. Combination of a variety of imaging modalities could contribute to improve the diagnosis.
Authors:
Fangyuan Ren; Changjing Zuo; Gang Chen; Jianhua Wang; Jianping Lu; Chengwei Shao; Xiaodong Hao
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-6
Journal Detail:
Title:  Abdominal imaging     Volume:  -     ISSN:  1432-0509     ISO Abbreviation:  Abdom Imaging     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-7     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9303672     Medline TA:  Abdom Imaging     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Radiology, General Hospital of Lanzhou PLA, No. 333 Bin He Road (South), Lanzhou, 730050, Ganshu, People's Republic of China, renfangyuan@hotmail.com.
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