Nonneoplastic cystic lesions of pancreas: a practical clinical, histologic, and radiologic approach.

Cystic lesions of pancreas are increasingly identified due to widespread use and improved resolution of cross-sectional imaging. These lesions are broadly classified into neoplastic and nonneoplastic cysts. Nonneoplastic cysts have no malignant potential and include pseudocysts, retention cysts, benign epithelial cysts, abscesses, duodenal wall cysts (diverticula), lymphoepithelial cysts, and the recently described mucinous nonneoplastic cyst. Herein, we report the clinical presentation, histology, and imaging findings of nonneoplastic cystic lesions of the pancreas together with pancreatic necrosis.