Radiologist Questions Brain Tumors

What scans are done to diagnose a brain tumor?

My father's doctor suspects that he may have a brain tumor. He has had two MRI's done, one of which showed a mass and the other did not. Are there any other scans that can tell for sure if he has a brain tumor for certain?

4 Answers

MRI is the gold standard for detection of brain tumors. CT scanning igood, but not as good as MRI
MRI and PET CT
That makes no sense. I'd have another radiologist look at the images.
MRI should be the most sensitive way to determine whether your father has a brain tumor. MRI can be performed with and without intravenous contrast and sometimes pathology is seen only with the contrast. You didn't mention the time period between the MRI scans. Was the MRI scan that was negative performed earlier than the one that was positive? It is possible that initially the pathology was too small to be seen by MRI but perhaps it was identified later after it progressed.

Overall, MRI is the most sensitive study for brain tumor. You might want to have the radiologist who interpreted the second study offer an opinion.