title: Membrane stain in chronic subdural hematoma: a rare angiographic sign. A case report.
abstract: Chronic subdural hematoma is diagnosed angiographically by the presence of an avascular zone as a result of medial displacement of the cerebral surface vessels from the inner table. A rare angiographic sign, membrane stain, is reported in a case of chronic subdural hematoma. The stain is presumed to represent the vascular membrane of the chronic subdural hematoma.
mesh_terms: D002533:Cerebral Angiography; D002908:Chronic Disease; D005260:Female; D006408:Hematoma, Subdural / Q000000981:diagnostic imaging*; D006801:Humans; D008875:Middle Aged