Acute Subdural Hematoma without Subarachnoid Hemorrhage or Intraparenchymal Hematoma Caused by Rupture of a Posterior Communicating Artery Aneurysm: Case Report and Review of the Literature

Ruptured intracranial aneurysm should be considered as a cause of nontraumatic subdural hematoma. Immediate subdural hematoma removal after aneurysm coiling can be performed in such patients, even those in poor neurological condition.