For severe acute cholecystitis, percutaneous cholecystostomy was superior to gallbladder aspiration in terms of clinical effectiveness and had the same complication rate as gallbladder aspiration.

These findings suggest that PDAC concomitant with IPMN and PDAC derived from IPMN may have more favorable biological behaviors or be diagnosed earlier than ordinary PDAC.

No abstract

Pancreatic duct stenting after P-GW for achieving selective biliary cannulation is recommended to reduce the incidence of post-ERCP pancreatitis.

Patients with branch-duct type IPMNs without papillary protrusions or TSS are not immediate candidates for surgery. Those who have small papillary protrusions have a benign course. It is recommended that patients with the large branch-duct type with TSS should undergo surgery. Attention should be paid to the entire pancreas when performing follow-up examinations in patients with branch-duct type IPMN, as invasive ductal adenocarcinoma can develop at a site in the pancreas different from that of the IPMN.