Patient complains of electrical left ear pain and jaw pain. Pain can radiate to eye. Brain: There appears to be a fine linear low signal band that traverses a portions of the left Meckel cave obliquely, separate from the trigeminal rootlets. There is no evidence of intracranial hemorrhage, mass, or acute infarct. The brain parenchyma appears unremarkable. There is no abnormal intracranial enhancement. The cavernous sinuses appear to be intact. 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 are unremarkable. There is mild left frontal sinus and frontoethmoid recess mucosal thickening. There is a pneumatized right anterior clinoid process. There are small nasopharyngeal retention cysts. Internal Auditory Canals: The bilateral cranial nerve 7 and 8 complexes are intact. There is no evidence of mass lesions. The inner ear structures, including the cochlea, vestibule, endolymphatic duct, and semicircular canals, appear unremarkable. The bilateral mastoid air cells and middle ears also appear unremarkable.
1. An apparent fine linear low signal band that traverses a portions of the left Meckel cave obliquely, separate from the trigeminal rootlets is of uncertain etiology, by may represent an arachnoid adhesion. Otherwise, no evidence of lesions along the other imaged portions of the left trigeminal nerve.2. No evidence of temporal bone region lesions.