Gastrointestinal stromal tumor MRI

Gastrointestinal stromal tumor Microchapters
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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

MRI scan may be helpful in the diagnosis of gastrointestinal stromal tumor.

MRI

MRI is more accurate and sensitive than a CT scan for delineating rectal GISTs and in identifying liver metastasis, hemorrhage and necrosis. Presence of necrosis, haemorrhagic and cystic change make appearances variable:

• T1:

• Low signal intensity solid component
• Enhancement is usually present, and predominantly peripheral in larger lesions

• T2: high signal intensity solid component

References

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