Neuroradiology: Key Differential Diagnoses and Clinical Questions

Lesions of the Facial Nerve

CASE A A 51-year-old man presenting with facial weakness and sensorineural hearing loss. CT, computed tomography. Open full size image CASE B A 39-year-old woman presenting with otalgia and facial palsy. CT, computed tomography. Open full size image CASE C…

Middle Ear

CASE A A 39-year-old woman presenting with pulsatile tinnitus. Ax , axial; Cor , coronal; CT, computed tomography. Open full size image CASE B A 33-year-old woman presenting with pulsatile tinnitus. Ax , axial; Cor , coronal; CT, computed tomography.…

External Auditory Canal

CASE A A 35-year-old man presenting with otalgia, otorrhea, and mild conductive hearing loss. Ax , axial; Cor , coronal; NCCT, noncontrast computed tomography. Open full size image CASE B A patient with bilateral chronically draining ears. Ax , axial;…

Petrous Apex

CASE A A 67-year-old man with hearing loss and headache. FLAIR, fluid attenuated inversion recovery. Open full size image CASE B A 53-year-old woman with progressive hearing loss. ADC, apparent diffusion coefficient; CT, computed tomography; DWI, diffusion-weighted imaging. Open full…

Floor of Mouth

CASE A A 53-year-old woman presenting with swelling on the left side of the floor of the mouth. Open full size image CASE B A 60-year-old man presenting with a slowly enlarging, nontender mass in the right anterior submandibular part…