Although most of them are benignant, there are risks of becoming malignant. Small size mucinous cysts are mostly discovered by chance, while large size mucinous cysts will cause abdominal pain. The most common type of mucinous cysts are:

1. Intraductal papillary mucinous neoplasm (IPMN), with subtype main duct, branch duct and mix type.

2. Mucinous cystic neoplasm (MCN)