Management of mucinous cystic neoplasms of the pancreas

Table 1 Imaging-based classification system of cystic pancreatic lesions

Type of lesions	Morphologic features	Pancreatic cystic lesions
Unilocular cyst	Without internal septation and solid component or wall calcification	Serous cystic neoplasm, intraductal papillary mucinous neoplasm1, pancreatic pseudocyst
Microcystic lesion	Six or more cysts with diameter 0.2 mm-2 cm, external lobulation, fibrous central scar with or without stellate calcifications	Serous cystic neoplasm
Macrocystic lesions	Diameter > 2 cm, with internal septation and solid component or wall calcification	Intraductal papillary mucinous neoplasm1, mucinous cystic neoplasm2
Cyst with a solid component	Unilocular or multilocular	Intraductal papillary mucinous neoplasm1, mucinous cystic neoplasm2

¹With or

²without communication with main duct, respectively.