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A 39-year-old member asked:

i have brain lesions, same as "tumor"?

3 doctor answers8 doctors weighed in
Dr. Herbert Hoover
General Practice 51 years experience
Not necessarily : A brain lesion may represent a benign or malignant tumor or may be inflammatory, hemorrhagic or ischemic(lack of blood supple to area as in a stroke). Obviously, if you have brain lesions, you should be under the care of a qualified physician.
Dr. Omar Eton
Dr. Omar Eton answered
Hematology and Oncology 38 years experience
Nope: lesion just means something different - does not imply a tumor. Often there are "UBOs" = unknown small bright objects. Lesions could be inconsequential or could be serious like an infection or inflammation or something neurological or a tumor. Your doctor who did the test can better explain.
Dr. Christina Lenk
Neurology 28 years experience
Not the same: Brain lesions can be anything seen on an MRI or ct ranging from old trauma, old strokes, signs of multiple sclerosis, infections, abnormal vessels (just about anything). We usually don't call tumors 'lesions'...We call them tumors. With technology today, we see lots of stuff on mri's that we aren't actually sure what it is, so we call them 'lesions' and watch them.

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