title: Focally increased activity on scinticisternography: report of two cases.
abstract: Two cases where focally increased activity was noted on scinticisternography are reported. One case involves a documented arteriovenous malformation, and the other, documented embolic vascular disease. After a review of the pertient literature, various other pathologic entities associated with similar scan findings are described. Possible causative mechanisms are discussed.
mesh_terms: D000328:Adult; D002946:Cisterna Magna; D005260:Female; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000175:diagnosis*; D002542:Intracranial Embolism and Thrombosis / Q000175:diagnosis*; D008875:Middle Aged; D011877:Radionuclide Imaging; D012709:Serum Albumin / Q000008:administration & dosage; D013667:Technetium / Q000008:administration & dosage
chemical_list: D012709:Serum Albumin; D013667:Technetium