Pearls & Oy-sters: Large vessel ischemic stroke secondary to glioblastoma multiforme.

Pearls & Oy-sters: cough headache secondary to Chiari malformation type I.

Pearls & Oy-sters: polycythemia vera presenting with ischemic strokes in multiple arterial territories.

Pearls & oy-sters: cerebral venous air embolism after central catheter removal: too much air can kill.

Acute Ischemic Stroke Secondary to Glioblastoma

Glioblastoma is a malignant infiltrative glial tumor occurring most often over 50 years of age, with diverse clinical presentations. We describe a case of temporal lobe glioblastoma with a rare presentation as an acute ischemic stroke, discussing the imaging and histopathological findings, and reviewing the literature. A 77-year-old woman had sudden onset of left hemiparesis and hemihypoesthesi...

Pearls & Oy-sters: Symptomatic innominate artery disease.

1. Innominate artery (IA) disease is an uncommon cause of stroke. A comprehensive clinical evaluation can promptly provide important diagnostic information and help tailor a straightforward diagnostic strategy. 2. The tetrad of right arm, eye, and hemispheric and posterior circulation ischemia is highly suggestive of an IA lesion. 3. Revascularization may be safely performed using an endovascul...