Right trigeminal neuralgia. MRI: The right superior cerebellar artery appears to course along the superior aspect of the cisternal segment of the right trigeminal nerve with negligible indentation upon the nerve. There is no evidence of intracranial hemorrhage, mass, or acute infarct. The brain parenchyma and pituitary gland appear unremarkable. There is no abnormal intracranial enhancement. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.MRA: There is no evidence of significant steno-occlusive lesions or cerebral saccular aneurysms.
The right superior cerebellar artery appears to course along the superior aspect of the cisternal segment of the right trigeminal nerve with negligible indentation upon the nerve. 