[Radiological evaluation of intraductal papillary mucinous neoplasm]

Area of Science:

• Gastroenterology and Hepatology
• Oncology
• Radiology

Context:

• Intraductal papillary mucinous neoplasm (IPMN) is the most common cystic neoplasm of the pancreas.
• Increased incidental detection of IPMN due to widespread cross-sectional imaging.
• Branch-duct IPMN is the most common subtype, occurring multifocally in 20-30% of cases.

Purpose:

• To review the diagnostic techniques and management strategies for intraductal papillary mucinous neoplasms (IPMN).
• To differentiate IPMN from other cystic pancreatic lesions.
• To guide treatment decisions based on IPMN subtype and clinical presentation.

Summary:

• Contrast-enhanced multidetector computed tomography (MDCT) is crucial for differentiating IPMN and classifying it as branch-duct or main-duct type.
• Magnetic resonance imaging (MRI) with MRCP and endoscopic ultrasound offer superior detail for evaluating cystic tumor architecture and malignancy.
• Main duct IPMN necessitates resection, while small, asymptomatic branch-duct IPMN cases warrant periodic surveillance (6-12 month intervals).

Impact:

• Improved diagnostic accuracy for IPMN through advanced imaging techniques.
• Personalized management strategies based on IPMN classification and risk stratification.
• Enhanced surveillance protocols for early detection of malignant transformation in IPMN.