Mucinous cystic neoplasms (MCNs) (also known as mucinous cystadenomas ) are slow-growing tumors that have cysts filled with a jelly-like substance called mucin . 
Mucinous cystic neoplasms (MCNs) (also known as mucinous cystadenomas) are slow-growing tumors that have cysts filled with a jelly-like substance called mucin. 