Prolongation and stasis of the dural circulation.
D001932:Brain Neoplasms / Q000000981:diagnostic imaging*; D002280:Basal Cell Carcinoma / Q000150:complications; D002533:Cerebral Angiography; D004388:Dura Mater / Q000098:blood supply*; D006801:Humans; D008579:Meningioma / Q000000981:diagnostic imaging*; D008722:Methods; D009362:Neoplasm Metastasis / Q000000981:diagnostic imaging; D012535:Scalp; D012878:Skin Neoplasms / Q000150:complications