A 3-month-old infant born prematurely at 34 weeks presents with microcephaly.

A 41-year-old man with worsening headache, mental status change, balance issues, blurred vision, and progression of numbness.

A 70-year-old woman with right-sided enophthalmos.

A 19-year-old woman with fever, fatigue, and right neck mass.

A man presents with headache.

An 11-year-old boy with mental status changes.

A 45-year-old man with fevers, subacute memory problems, and tremor.

A 32-year-old woman with migraines.

A 57-year-old woman with frequent falls for the past month.

A 14-year-old boy undergoing imaging after cardiac arrest and house fire.

A 47-year-old woman with progressive numbness, hearing loss, vision changes, dysphagia, and nausea/vomiting over the past two months.

A 62-year-old man with subacute progressive numbness and weakness in the extremities.

A 22-year-old man with recurrent dystonia and dysphagia.

A 49-year-old woman with rapidly progressive altered mental status.

An 18-month-old girl with developmental delay presents with new-onset seizures.

A 13-year-old boy presents with progressive left eye blindness.

A 60-year-old man with progressive numbness and tingling in his fingers and toes.

A 37-year-old woman with worsening lethargy, mental status change, and incontinence after a fall.

A 30-year-old man with slow cognitive decline and development of a spastic gait.

A 59-year-old man with facial drooping and asymmetry, as well as incomplete closure of the left eye.