Weekly Image Challenge – March 5, 2022

What is the most likely diagnosis in these scans?

  1. Parafalcine meningioma
  2. Ruptured basilar tip aneurysm
  3. Ruptured anterior communicating artery aneurysm
  4. Hypertensive intracranial haemorrhage


Yes, it’s a ruptured anterior communicating artery aneurysm. There is acute blood along the falx & in the occipital horn of the left lateral ventricle, & a possible infarct in the anterior cerebral artery territory. The angiogram shows a saccular aneurysm.