title: Occult cerebrovascular malformations. A series of 18 histologically verified cases with negative angiography.
mesh_terms: D000293:Adolescent; D000328:Adult; D000792:Angiography; D001165:Arteriovenous Malformations / Q000175:diagnosis* / Q000000981:diagnostic imaging; D002648:Child; D005260:Female; D006391:Hemangioma / Q000175:diagnosis / Q000000981:diagnostic imaging; D006392:Hemangioma, Cavernous / Q000000981:diagnostic imaging; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D009780:Occult Blood; D014057:Tomography, X-Ray Computed