MRI Findings in Extra-axial brain lesions

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Peripheral, broadly based along the calvarium.
Overlying bone changes.
Enhancement of adjacent meninges.
Displacement of the brain from the skull.

Cerebrospinal cleft between brain and lesion.
Vessels interposed between brain and lesion.
Cortex between the mass and the white matter.
Dura between epidural mass and the brain.

Contributed byDr. Varun Tyagi, Mumbai