Background/Aims: Our objectives in this study were to evaluate the surgical
treatment for mucin-producing tumor of the pancreas from the clinicopathol
ogical and imaging features.
Methodology: Thirty-one patients with mucin-producing tumor of the pancreas
were examined based on clinicopathological analyses to determine the appro
priate surgical treatment.
Results: The clinical and imaging features easily distinguished the main du
ct type of intraductal papillary lesions (type Ia), branch type of intraduc
tal papillary lesions (type Ib) and mucinous cystic neoplasms (type II). Fr
om pathological examinations, a dilated main pancreatic duct had the malign
ant potentiality and multicentric development.
Conclusions: Pancreatic segments containing a dilated main pancreatic duct
should be resected in type Ia. Type Ib is sufficient for partial resection
without lymphadenectomy. Type II also requires partial resection of the cys
tic neoplasm. A standard lymphadenectomy may be an option when type Ia and
II show invasive features.