CASE A Sagittal T2 magnetic resonance imaging shows the anterior atlantooccipital ligament ( white arrow ), anterior arch of C1 ( black arrow ), dens ( magenta arrow ), apical ligament ( blue arrow ), tectorial membrane ( green arrow ), basion ( yellow arrow ), and opisthion ( red arrow ). Open full size image CASE B Flexion and extension lateral radiographs show normal alignment on…
CASE A A 70-year-old woman with a history of breast cancer presenting with diplopia. Ax, axial; CTA, computed tomographic angiography; Sag, sagittal. Open full size image CASE B A 44-year-old woman presenting with headache and dizziness. Ax, axial; CT, computed tomography; DWI, diffusion-weighted imaging; FS, fat saturated; Sag, sagittal. Open full size image CASE C A 19-year-old male who sustained trauma. Ax, axial; CT, computed tomography;…
CASE A A 51-year-old man with a history of headaches for 6 weeks now presenting with dizziness and nausea. Open full size image CASE B A 36-year-old Brazilian woman presenting with a 5-day history of progressive confusion, paranoid delusions, and magical thinking. Open full size image DESCRIPTION OF FINDINGS Case A: A supratentorial right temporal cyst with an enhancing mural nodule. No edema or other lesions are…
CASE A A 33-year-old woman with a history of chronic headaches. DWI, diffusion-weighted imaging; FLAIR, fluid attenuated inversion recovery. Open full size image CASE B A 74-year-old woman with a history of unsteady gait. DWI, diffusion-weighted imaging; FLAIR, fluid attenuated inversion recovery. Open full size image DESCRIPTION OF FINDINGS Scans demonstrate two different pineal region extraaxial masses roughly following CSF intensity: hypointense on T1-weighted images and…
CASE A A 66-year-old woman presenting with left-sided motor deficits, including increased tone and loss of dexterity. PET, positron emission tomography. Open full size image CASE B A 59-year-old woman presenting with asymmetrically increased tone and bradykinesia on the left side. MRI, magnetic resonance imaging; PET, positron emission tomography. Open full size image CASE C A 62-year-old woman presenting with ataxia, dysarthria, saccadic breakdown of smooth visual…
CASE A A 72-year-old man presenting with a history of several years of primarily amnestic progressive cognitive deficits. PET, positron emission tomography. Open full size image CASE B A 71-year-old man presenting with progressive multidomain cognitive decline, gait and balance disturbance, and hallucinations. PET, positron emission tomography. Open full size image CASE C A 77-year-old man presenting with progressive behavior changes. PET, positron emission tomography. Open…
CASE A A 42-year-old woman presenting with orthostasis and hyponatremia. Ax, axial; DWI, diffusion-weighted imaging; FLAIR, fluid attenuated inversion recovery. Open full size image CASE B A 71-year-old man presenting with slurred speech and difficulty with hand-mouth coordination. Ax, axial; DWI, diffusion-weighted imaging; FLAIR, fluid attenuated inversion recovery. Open full size image CASE C A 34-year-old man presenting with choking episodes, right-sided weakness, and urinary incontinence.…
CASE A A 45-year-old man with a history of a liver transplant presenting with fever and mental status changes. Ax, axial; Cor, coronal; CT, computed tomography; FLAIR, fluid attenuated inversion recovery; recon, reconstruction; Sag, sagittal. Open full size image CASE B An 11-year-old boy who was struck by a car. Ax, axial; Cor, coronal; CT, computed tomography; Sag, sagittal. Open full size image CASE C A…
CASE A A 68-year-old woman with breast cancer presenting with a 3-month history of worsening cervical spine pain. Ax , axial; Sag , sagittal. Open full size image CASE B A 47-year-old man presenting with worsening headaches and double vision. Ax , axial; FLAIR , fluid attenuated inversion recovery; FS , fat saturated; Sag , sagittal. Open full size image CASE C A 31-year-old man presenting…
CASE A A 9-month-old infant after a fall. CT, computed tomography; 3D, three dimensional. Open full size image CASE B A 45-year-old woman after a fall. Ax , axial; Cor , coronal; CT, computed tomography. Open full size image CASE C A woman of unknown age who sustained head trauma. Cor , coronal; CT, computed tomography; 3D, three dimensional. Open full size image CASE D A…
CASE A A 15-year-old girl with a history of panic disorder and migraines presenting with a change in mental status. Ax , axial; Cor , coronal; CT , computed tomography; Lat , lateral; Sag , sagittal. Open full size image CASE B A 69-year-old woman with a history of multiple paragangliomas and squamous cell and basal cell skin cancer presenting with a palpable left parietal calvarial…
CASE A A 48-year-old woman with a history of lupus with severe vision loss. Cor, coronal; Sag, sagittal. Open full size image CASE B A 55-year-old man with long-standing left-sided facial weakness. Ax, axial; CT, computed tomography. Open full size image CASE C A 56-year-old man presenting with a 10-day history of left-sided facial weakness. Ax, axial. Open full size image CASE D A 63-year-old man…
CASE A A 19-year-old Asian man presenting with headaches and visual difficulties. CT, computed tomography; DWI, diffusion-weighted imaging. Open full size image CASE B A 55-year-old woman presenting with headaches, nausea, and vomiting. CT , computed tomography; DWI , diffusion-weighted imaging. Open full size image CASE C A 24-year-old man presenting with excessive thirst. FS , fat saturated. Open full size image DESCRIPTION OF FINDINGS Case…
CASE A A 19-year-old woman presenting with chronic visual changes, amenorrhea, and weight gain. Ax, axial; CT, computed tomography; DWI, diffusion-weighted imaging; Sag, sagittal. Open full size image CASE B A 70-year-old woman presenting after sustaining trauma. Ax, axial; CT, computed tomography; DWI, diffusion-weighted imaging; Sag, sagittal. Open full size image CASE C A 41-year-old man presenting with headaches. Ax, axial; CT, computed tomography; DWI, diffusion-weighted…
CASE A A 2-year-old boy presenting with unsteadiness and lethargy. Open full size image CASE B An 8-year-old boy presenting with emesis and headache. Open full size image CASE C A 45-year-old man with morning headaches and occasional nausea and vomiting. Open full size image CASE D A 32-year-old Latin American woman presenting with a severe headache. Open full size image DESCRIPTION OF FINDINGS Case A:…
CASE A A 54-year-old asymptomatic woman. FLAIR, fluid attenuated inversion recovery. Open full size image CASE B A 53-year-old woman presenting with dizziness, diplopia, and blurred vision. Open full size image CASE C A 32-year-old Latin American woman presenting with a severe headache. CT, computed tomography; DWI, diffusion-weighted imaging; FLAIR, fluid attenuated inversion recovery. Open full size image CASE D A 37-year-old man presenting with a…
CASE A A 20-year-old man presenting with a 2-month history of a worsening headache. ADC, apparent diffusion coefficient; Ax, axial; CT , computed tomography. Open full size image CASE B A 25-year-old woman presenting with a 2-week history of confusion (magnetic resonance imaging after a ventriculostomy for hydrocephalus). ADC, apparent diffusion coefficient; Ax, axial; CT , computed tomography; GRE, gradient refocused echo. Open full size image…
CASE A A 47-year-old woman presenting with sudden onset of hearing loss. Ax, axial; Cor, coronal; FIESTA , fast imaging employing steady-state acquisition. Open full size image CASE B A 75-year-old man presenting with progressive left hearing loss, left facial numbness, and worsening balance. Ax, axial; Cor, coronal; FIESTA , fast imaging employing steady-state acquisition. Open full size image CASE C A 52-year-old woman presenting with…
CASE A A 16-year-old boy with “abnormal head computed tomography” after a minor head trauma. DWI, diffusion-weighted imaging; FLAIR, fluid attenuated inversion recovery. Open full size image CASE B A 49-year-old man with postconcussive syndrome after a bicycle accident. DWI, diffusion-weighted imaging; FLAIR, fluid attenuated inversion recovery. Open full size image CASE C A 50-year-old man with altered mental status. DWI, diffusion-weighted imaging; FLAIR, fluid attenuated…
CASE A An 80-year-old woman with headache and speech changes. ADC , apparent diffusion coefficient; Ax , axial; CT, computed tomography; DWI , diffusion-weighted imaging; FLAIR , fluid attenuated inversion recovery. Open full size image CASE B A 59-year-old man with hypertension and poor medical compliance was found down and unable to speak, presenting with dense right hemiplegia. ADC , apparent diffusion coefficient; Ax , axial;…