A 50-year-old man has a 2.5 cm pancreatic cystic lesion incidentally found on CT. MRCP shows it communicates with the main pancreatic duct. EUS-FNA cytology shows mucinous content. This is consistent with a main duct IPMN (intraductal papillary mucinous neoplasm). What is the recommended management?
- A Annual MRI surveillance only
- B Surgical resection is recommended due to high malignant potential of main duct IPMN ✓
- C Endoscopic drainage of the cyst
- D Surveillance if the cyst is <3 cm with no worrisome features
Explanation
Main duct IPMN (involving the main pancreatic duct with dilation >5mm) carries a high risk of malignancy (approximately 45-70% risk of invasive cancer or high-grade dysplasia) and current international consensus guidelines (Fukuoka guidelines) recommend surgical resection for all main duct and mixed-type IPMNs in fit patients, regardless of size. This differs from branch duct IPMNs, which may be surveilled if small and without worrisome features. The type of resection (pancreaticoduodenectomy for head lesions, distal pancreatectomy for body/tail) depends on the location.
Reference: Bailey & Love's Short Practice of Surgery, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.