A 53-year-old female asked:
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how can mri on brain miss a brain tumor when two eye docs,2 neruo, and 2neruosurgeon all say can't see tumor but there could be one starting and now have one avm in oct last year and one this june.

1 doctor answer
Dr. Peter Nefcy
38 years experience Radiology
MRI scans: To see a tumor or AVM with MRI depends on many factors, including the size, shape, location, enhancement and secondary signs such as edema and changes in normal anatomy. A very small tumor in the right location can be easily seen, but even larger tumors cannot be seen until they change the anatomy of the rest of the brain or enhance. And very small tumors at times are not seen. Same for AVM.
Answered on Sep 4, 2018
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