blondie33 wrote:Thanks for your response. Do you by any chance know what enhancing lesion means?
An enhancing lesion is one that lights up with the gadolinium contrast that was used during the MRI. The gadolinium crosses the blood brain barrier at sites of active inflammation. It can cross because the white blood cells have been crossing there and have loosened up the tight junctions between the epithelial cells that line the brain's blood vessels forming the blood brain barrier. Essentially, it means that it's a site of active inflammation.
blondie33 wrote:Also in regards to this same suspicious lesion it also stated that it was only seen on the Flair image. Do you by any chance know what that means?
It's a type of MRI. FLAIR stands for Fluid-Attenuated Inversion-Recovery. FLAIR imaging helps to nullify the signal from the cerebrospinal fluid (CSF) to better image the brain tissue. It may reveal lesions that regular T1 and T2 imaging do not. T1 and T2 represent different times when the image data, or return EM energy, is collected. T1 is 20 mS after the EM pulse while T2 is 200 mS after the EM pulse. Water appears black in T1 and white in T2. Perhaps someone else can help with the significance of a lesion showing up only in the FLAIR image.