Examine the single slice non-contrast CT image, depicted below, of a 58-year-old male who was brought to the Emergency Department with a headache. He was not on any medication.
a) Name the structures labelled A- E.
b) Describe lesion F as you would on the phone to a neurosurgical colleague.
c) Give three pathological causes for F.
A day after the CT scan the patient's Glasgow Coma Scale drops from 13 to 10.
d) Give three possible intracranial causes for this.
e) List five validated features affecting prognosis for patients with F.