Benign
Acinar cell cystadenoma
Serous cystadenoma
Premalignant lesions
Intraductal papillary mucinous neoplasms with low- or intermediate-grade dysplasia
Intraductal papillary mucinous neoplasms with high-grade dysplasia
Intraductal tubulopapillary neoplasms
Mucinous cystic neoplasms with low- or intermediate-grade dysplasia
Mucinous cystic neoplasms with high-grade dysplasia
Malignant
Acinar cell cystoadenocarcinoma
Intraductal papillary mucinous neoplasms with an associated invasive carcinoma