Right facial numbness. There is apparent punctate focus of enhancement along the cisternal segment of the right trigeminal nerve, without discernible mass lesions otherwise. There are small vascular flow voids adjacent to the right trigeminal nerve, without apparent impingement upon the nerve. The bilateral Meckel caves and cavernous sinuses are unremarkable. There is no evidence of intracranial hemorrhage or acute infarct. The brain parenchyma and pituitary gland appear unremarkable. 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.
An apparent punctate focus of enhancement along the cisternal segment of the right trigeminal nerve may represent a normal vascular structure, without discernible impingement upon the nerve. Nevertheless, a follow MRI of this region may be useful for further assessment, if clinically warranted.