Hemorrhagic Stroke — Imaging

Which imaging feature best distinguishes epidural hematoma from subdural hematoma on CT scan?

A 58-year-old man with hypertension presents to the emergency department with sudden-onset severe headache, neck stiffness, and photophobia. Non-contrast CT head shows hyperdensity in the basal cisterns and sulci. What is the most appropriate next step in management?

A 72-year-old woman with poorly controlled hypertension is brought to hospital with acute right-sided weakness and altered consciousness. Non-contrast CT head shows a 4 cm hyperdense lesion in the left basal ganglia with mass effect and midline shift. The patient is on warfarin for atrial fibrillation (INR 3.2). What is the most appropriate immediate next step?

A 58-year-old man with uncontrolled hypertension presents with acute onset hemiparesis and headache. CT head shows a hyperdense lesion in the basal ganglia with surrounding edema. Which imaging feature best distinguishes hypertensive intracerebral hemorrhage (ICH) from ruptured arteriovenous malformation (AVM)?

A 58-year-old hypertensive man presents with acute onset severe headache, vomiting, and right-sided weakness. CT head shows a hyperdense lesion in the basal ganglia with intraventricular extension. What is the most common site of hypertensive intracerebral hemorrhage?