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A 20-year-old male asked:

Is it possible for a 10 mm thick arachnoid cyst to be compressing the brain in the "left paretal frontal lobe region" how can a cyst be measured 18 * 30 mm (mri) one year ago and no compression vs. 10 mm ct now with compression. technique is mri bett?

1 doctor answer • 1 doctor weighed in
Dr. John Berryman
Dr. John Berrymananswered
Obstetrics and Gynecology 56 years experience
Parietal lobe cyst ?: A "parietal lobe arachnoid cyst" measured at "10 mm thick" by CT can reflect lateral mass growth which can cause brain compression due to continued growth b/c of the limited volume of the skull for such growth to occur. The MRI at a year prior may measure the cyst at a point when lateral growth, not "thickness" , was not at that point increased. Consult the neurologist for questions.
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Last updated Feb 27, 2021

Found in:

Lobe›Cyst›Compression

People also asked

Had head CT scan with and w/o contrast. Findings say all normal but possible small arachnoid cyst in anteromedial left frontal lobe. Had MRI w/o contrast 18 months ago with no mentions. Could this have been missed? Is this early brain cancer?
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