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Medical Term:

subdural space


originally thought to be a narrow fluid-filled interval between the dural and arachnoid; now known to be an artificial space created by the separation of the arachnoid from the dura as the result of trauma or some ongoing pathologic process; in the healthy state, the arachnoid is tenuously attached to the dura and a naturally occurring subdural space is not present.

Synonym(s): spatium subduraleTA, cavum subdurale, subdural cavity, subdural cleavage, subdural cleft

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.