Carcinoid syndrome MRI

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Parminder Dhingra, M.D. [2]

Overview

Abdominal MRI scan may be performed to detect metastases of carcinoid syndrome to liver and mesentry.

MRI

On abdominal MRI, carcinoid syndrome is characterized by:

• Nodular mass originating from the bowel wall or regional uniform bowel wall thickening with moderate intense enhancement on postgadolinium T1-weighted fat-suppressed images.
• Mesenteric metastases presented as nodular masses with mesenteric stranding.
• Liver metastases may show hypointense precontrast T1- and hyperintense T2-weighted images.
• Liver metastases are commonly hypervascular.