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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 A 67-year-old man with a parotid malignancy and progressive facial paralysis. CT, computed tomography. Open full size image DESCRIPTION OF FINDINGS Case A: CT of the…

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. Open full size image CASE C A 27-year-old woman presenting with otalgia and pulsatile tinnitus. Ax , axial; Cor , coronal; CT, computed tomography. Open full…

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; Cor , coronal; NCCT, noncontrast computed tomography. Open full size image CASE C A 30-year-old patient with narrowing of the external canals bilaterally. 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 size image CASE C A 49-year-old woman presenting with a throbbing sensation in her head. CT, computed tomography; CTA, CT, angiography. Open full size image CASE…

Anterior Skull Base Masses

CASE A A 46-year-old man with a history of progressive personality change for 1.5 years. Ax , axial; Cor , coronal; Sag , sagittal. Open full size image CASE B A 68-year-old woman with a 3-year history of episodic dizziness, a nasal mass, and hyposmia. Ax , axial; Cor , coronal; Sag , sagittal. Open full size image CASE C A 50-year-old man presenting with epistaxis…

Thyroglossal Duct Abnormalities

CASE A A 41-year-old man with left arm paresthesias. Ax, axial; Sag, sagittal. Open full size image CASE B A 4-year-old girl with a palpable anterior neck mass. Ax, axial; Cor, coronal; CT, computed tomography. Open full size image CASE C A 45-year-old woman with dysphagia and hypothyroidism. Ax, axial; Cor, coronal; Sag, sagittal. Open full size image DESCRIPTION OF FINDINGS Case A: A hyperintense cystic…

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 of the neck. Open full size image CASE C A 2-month-old child presenting with a mass at the root of the tongue. Open full size image…

Poststyloid Parapharyngeal Space

CASE A A 46-year-old woman presenting with a parapharyngeal mass in the left side of the neck that was detected incidentally. Ax, axial; CT, computed tomography; FS, fat saturated; SPECT, single-photon emission computed tomography. Open full size image CASE B A 61-year-old woman presenting with a mass in the left side of the neck. Ax, axial; FS, fat saturated. Open full size image DESCRIPTION OF FINDINGS…

Prestyloid Parapharyngeal Space

CASE A A 71-year-old woman with a mass discovered incidentally in the left parapharyngeal space. Ax, axial; CT, computed tomography; FS, fat saturated. Open full size image CASE B Routine neck imaging for a 73-year-old man with a history of medullary thyroid cancer revealed a mass. Ax, axial; Cor, coronal; FS, fat saturated. Open full size image DESCRIPTION OF FINDINGS Case A: Contrast-enhanced CT demonstrates a…

Infrahyoid Neck Cystic Lesions

CASE A A 2-year-old girl presenting with fever and a mass in her neck for 24 hours. Ax , axial; Cor , coronal; CT, computed tomography; Sag , sagittal. Open full size image CASE B A 2-month-old girl presenting with swelling in the left side of the neck, a mass, and firm induration. Ax , axial; Cor , coronal; CT, computed tomography; Sag , sagittal. Open…

Cystic Lateral Neck Masses

CASE A A 22-year-old woman presenting with swelling in the left side of the neck. Ax , axial; Cor , coronal CT, computed tomography. Open full size image CASE B A 61-year-old man with squamous cell carcinoma of the oral tongue and lung cancer. Ax , axial; Cor , coronal; CT, computed tomography; Sag , sagittal. Open full size image CASE C A 56-year-old woman with…

Periauricular Cystic Lesions

CASE A A 5-year-old boy presenting with painful right facial swelling and a history of a left ear infection 1 week earlier. Ax , axial; Cor , coronal; CT, computed tomography. Open full size image CASE B A 40-year-old man with neurofibromatosis type 1 and known facial dysmorphism resulting from left facial plexiform neurofibromas and multiple surgeries, now presenting with a fluctuant mass posterior to the left…

Vertebral Compression Fractures

CASE A An 83-year-old woman presenting with back pain. STIR, short T1 inversion recovery. Open full size image CASE B A 77-year-old woman presenting with back pain. FS , fat saturated; STIR, short T1 inversion recovery. Open full size image DESCRIPTION OF FINDINGS Case A: Approximately one-third loss of height of the L2 vertebral body is present from compression deformity of the inferior L2 endplate. Hypointense…

Disk Infection Versus Inflammatory/Degenerative Changes

CASE A A 58-year-old man with a history of heavy alcohol use, gastrointestinal bleeding, and prior bowel resection presenting with low back pain. FS, fat saturated; Sag, sagittal. Open full size image CASE B A 36-year-old man, who has had a previous diskectomy, presenting with low back pain. FS, fat saturated; Sag, sagittal. Open full size image CASE C A 42-year-old woman presenting with back pain…

Sacral Masses

CASE A A 71-year-old man with severe pain in his buttocks and lower back. Ax, axial; CT, computed tomography; Sag, sagittal. Open full size image CASE B A 20-year-old woman with progressive pain in her lower back and buttocks. Ax, axial; CT, computed tomography; Sag, sagittal. Open full size image CASE C A 52-year-old man with progressive lower back and left leg pain. Ax, axial; CT,…

Posterior Element Lesions

CASE A A 54-year-old woman presenting with back pain and left L3 radiculopathy. CT, computed tomography; STIR, short T1 inversion recovery. Open full size image CASE B A 19-year-old man presenting with right lower back pain. CT, computed tomography; FS , fat saturated. Open full size image CASE C A 19-year-old man presenting with dull left neck and shoulder pain. CTA, computed tomographic angiography; FS ,…

Nerve Root Enlargement

CASE A A 24-year-old woman with a history of neurofibromatosis type 1 presenting with a 3-month history of weakness and tremors in her right hand. Ax , axial; Cor , coronal; Sag , sagittal. Open full size image CASE B A 17-year-old male with foot deformity and scoliosis. Ax , axial. Open full size image CASE C A 59-year-old man presenting with pain and sensation of…

Cystic Intradural Extramedullary Lesions

CASE A A 42-year-old woman presenting with worsening lower extremity discomfort. ADC, apparent diffusion coefficient; Ax, axial; DWI, diffusion-weighted imaging; Sag, sagittal. Open full size image CASE B A 37-year-old man presenting for evaluation of low back pain for the past 3 to 4 years. Ax, axial; Sag, sagittal. Open full size image CASE C A 35-year-old man presenting with back pain. Ax, axial; Sag, sagittal.…

Multiple Enhancing Intradural, Extramedullary Lesions

CASE A A 40-year-old woman presenting with a 1-week history of worsening ascending numbness/tingling, urinary retention, saddle anesthesia, and decreased rectal tone. Sag, sagittal. Open full size image CASE B A 22-year-old man with a history of a known disorder. Ax, axial; Sag, sagittal. Open full size image CASE C A 42-year-old woman presenting with recurrent schwannoma proven by pathology and a brain magnetic resonance imaging…

Solitary Enhancing Intradural, Extramedullary Lesions

CASE A A 56-year-old woman with a history of chronic lower back pain and leg weakness who had fallen in the shower. Ax, axial; FS, fat saturated; Sag, sagittal. Open full size image CASE B A 28-year-old woman with a history of neurofibromatosis type 2. Ax, axial; Sag, sagittal. Open full size image CASE C A 78-year-old man presenting with right posterior thigh pain radiating from…