Rapid spontaneous resolution of acute subdural hematoma associated with a contralateral arachnoid cyst: A case report and review of the literature

Abstract

Rapid resolution of post-traumatic acute subdural hematoma is infrequently reported. We report a case of rapid spontaneous disappearance of post-traumatic acute subdural hematoma in one patient who was discovered to have a contralateral middle cranial fossa arachnoid cyst. The previously reported mechanisms responsible for the rapid spontaneous disappearance of posttraumatic acute subdural hematoma are reviewed and the contribution of the middle cranial fossa arachnoid cyst to the disappearance of the pos-traumatic acute subdural hematoma that has taken place in our case is discussed. To the best of our knowledge the association between spontaneous disappearance of post-traumatic acute subdural hematoma and arachnoid cysts has not been previously reported.