31-year-old woman with light perception blindness, followed by upper extremity weakness four years later.

10-year old girl in a semiunconscious state.

A 38-year-old man presented to the emergency department with head trauma.

A symptomatic 66-year-old man with a history of left-sided skull base mass.

A 61-year-old man presented with decreased hearing on the right side.

A 65-year-old man with facial asymmetry.

A 60-year-old man with new-onset hematuria and hypertension.

A 58-year-old woman with nausea, vomiting, fever, and altered mental status.

A 61-year-old woman with lower back pain associated with radiculopathy in both lower limbs and bilateral foot drop.

A 60-year-old woman with history of learning disabilities and seizures undergoing genetic testing.

A 70-year-old woman with ptosis and miosis of the right eye.

A 17-year-old boy with a two-week history of progressive headaches, nausea, and vomiting.

A 47-year-old woman with a severe acute-onset headache.

A 78-year-old man with a progressively enlarging right neck mass.

A 66-year-old woman with one month of progressively worsening upper back pain.

A 25-year-old woman with long-standing back pain in the midthoracic region.

An 83-year-old man with coronary artery disease and a prior transient ischemic attack.

A 46-year-old man found down at home.

A 64-year-old man with prior prostate cancer.

A 23-year-old man with penetrating neck trauma undergoing vascular evaluation.