MRI BRAIN + MRA: Indication: Diagnosed case of...

MRI BRAIN + MRA: Indication: Diagnosed case of CVA. To rule out acute stroke. Findings: There is no evidence of restricted diffusion to suggest acute infarct. There is altered signal with volume loss in the inferior aspect of left cerebellar hemisphere. The vermis and right cerebellar hemisphere as well as brainstem demonstrate no significant abnormality. Gray/white matter differentiation and sulcal gyral pattern are normal. Few tiny nonspecific FLAIR hyperintense signals in superficial white matter at vertex. No intra- or extraaxial lesion / collection is seen. Prominent but subcentimeter right cervical nodes. MRA There is loss of flow signal in left vertebral artery at foramen magnum and in extracranial course. Its distal part along with the left PICA are faintly filled from the contralateral vertebral artery. The right PICA, AICAs, superior cerebellar and posterior cerebral arteries are unremrakable. Bilateral carotids, ACAs and MCAs are normal without stenosis or aneurismal dilatation . Impression: No MRI evidence of acute infarct. Old infarct in the inferior aspect of left cerebellar hemisphere with some laminar necrosis. Occluded left vertebral artery at foramen magnum as well as in its visualized extracranial course and the distal left vertebral artery along with left PICA are faintly filling from the contralateral vertebral artery. Details as above.