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…
CASE A A 3-year-old boy who has been limping and favoring the left lower extremity for approximately 1 month. Open full size image CASE B A 46-year-old man presenting with progressive bilateral lower extremity weakness and gait difficulty. Open full…
CASE A A 60-year-old woman presenting with progressive lower extremity numbness. Ax, axial; Sag, sagittal. Open full size image CASE B A 64-year-old woman with a history of von Hippel–Lindau disease. Sag, sagittal. Open full size image CASE C A…
CASE A Sagittal computed tomography image shows severe superior migration of the dens across the foramen magnum. Exaggerated cervical spine lordosis is also present. Open full size image CASE B Sagittal computed tomography image shows a nearly horizontal configuration of…
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 ),…
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…
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…
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…
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.…
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…