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Table 1 Classification of cystic pancreatic lesions (CPLs)

From: Cystic pancreatic lesions: MR imaging findings and management

WHO classification of cystic pancreatic lesions

Epithelial non-neoplastic

Epithelial neoplastic

 

Mucinous

 

 Intraductal papillary mucinous neoplasm

 

 Mucinous cystic neoplasm

Lymphoepithelial cyst

 

Mucinous non-neoplastic cyst

Non-mucinous

Enterogeneous cyst

 Serous cystic neoplasm

Retention cyst/dysontogenetic cyst

 Solid pseudopapillary neoplasm

Periampullary duodenal wall cyst

 Cystic neuroendocrine tumor G1-2

Endometrial cyst

 Acinar cell cystadenoma

Congenital cyst (in malformation syndromes)

 Serous cystoadenocarcinoma

 

 Cystic ductal adenocarcinoma

 

 Cystic acinar cell carcinoma

 

 Accessory-splenic epidermoid cyst

 

 Cystic hamartoma

 

 Cystic teratoma

 

 Cystic pancreatoblastomas

 

 Cystic metastatic epithelial neoplasm

 

 Others

Non-epithelial non-neoplastic

Non-epithelial neoplastic

Walled-off necrosis

Benign non-epithelial neoplasms (e.g., lymphangioma)

Pancreatitis-associated pseudocyst

 

Parasitic cyst

Malignant non-epithelial neoplasms (e.g., sarcomas)