has characteristic has characteristic subarachnoid hemorrhage acquired aneurysmal subarachnoid hemorrhage https://github.com/monarch-initiative/mondo/issues/5956 https://www.malacards.org/card/acquired_aneurysmal_subarachnoid_hemorrhage Orphanet:90065 MEDGEN:572642 GARD:0019114 UMLS:C0338572 MONDO:0019543 icd11.foundation:958976948 A serious, life threatening rare neurologic disease characterized by a sudden rupture of an intracranial aneurysm into the subarachnoid space. It usually presents with a sudden, severe, excruciating headache accompanied by nausea, vomiting and syncope. Other features may include focal neurological signs, third and sixth nerve palsies, seizures and cardiac failure. Early complications include rebleeding, hydrocephalus, and seizures. acquired