Fluoroquinolone antibiotics were associated with idiopathic intracranial hypertension.

The "upgoing thumb sign" can be used as part of a comprehensive neurological evaluation to help distinguish stroke mimic from actual stroke.  It won't replace MRI, but it can be part of the neurological exam, just like we use the Babinski sign.  One editorial from 1993 suggested calling it the Hachinski-Babinski, after the discover.  Here's how to do it.

Meningitis was a very rare cause of status epilepticus (SE) in this retrospective single-center review.

Supine position to improve cerebral blood flow in ischemic stroke patients did not impact outcome positively or negatively compared to head-of-bed elevation 30 degrees.

False negative DWI MRI imaging happened in about 7% of cases.  If you strongly suspect ischemic stroke clinically, especially posterior stroke, press to admit for further workup.

As CTA use increases, so does detection of small UIAs.  Most are unlikely to grow, and rupture rates are low but may be up to 1% per year in larger, 7mm aneurysms. 

The Ottawa SAH Rule is helpful in deciding which patients need further workup in the ED, but make sure your patient is similar to those included in the validation study.

Even in the era of modern neuroimaging we may miss up to 9% of cerebrovascular events.

Cancer as a young person increases subsequent risk for cerebrovascular events.  Cancer is in itself a risk factor for stroke.

The ABCD2 score is a good predictor of stroke risk after TIA.