Acoustic neuroma MRI: Difference between revisions
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{{CMG}}{{AE}}{{Simrat}} | {{CMG}}{{AE}}{{Simrat}} | ||
==Overview== | ==Overview== | ||
Abdominal CT scan is diagnostic of Acoutic neuroma. | Abdominal CT scan is diagnostic of Acoutic neuroma. On [diagnostic study], [disease name] is characterized by [finding 1], [finding 2], [finding 3]. | ||
==MRI== | ==MRI== | ||
MRI findings of Acoustic neuroma are: | MRI findings of Acoustic neuroma are: | ||
Revision as of 12:48, 18 September 2015
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Acoustic neuroma Microchapters | |
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Diagnosis | |
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Treatment | |
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Case Studies | |
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Acoustic neuroma MRI On the Web | |
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American Roentgen Ray Society Images of Acoustic neuroma MRI | |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Simrat Sarai, M.D. [2]
Overview
Abdominal CT scan is diagnostic of Acoutic neuroma. On [diagnostic study], [disease name] is characterized by [finding 1], [finding 2], [finding 3].
MRI
MRI findings of Acoustic neuroma are: T1
- Slightly hypointense cf. adjacent brain (63%)
- Isointense cf. adjacent brain (37%)
- May contain hypointense cystic areas
T2
- Heterogeneously hyperintense cf. to adjacent brain
- Cystic areas fluid intensity
- May have associated peritumoural arachnoid cysts
T1 C+ (Gd)
- Contrast enhancement is vivid
- But heterogeneous in larger tumours
Post-up MRI:Linear enhancement may not indicate tumour, but if there is nodular enhancement suspect tumour recurrence (needs follow up MRI).