title: Differential diagnosis of the enlarged superior ophthalmic vein.
abstract: Enlargement of the superior ophthalmic vein (SOV), although usually considered a sign of carotid-cavernous fistula, may be found with other disorders. Patients with Graves orbitopathy, orbital pseudotumor, and a parasellar meningioma as the cause of an enlarged SOV as seen on computed tomography are discussed.
mesh_terms: D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D004108:Dilatation, Pathologic / Q000000981:diagnostic imaging; D005123:Eye / Q000098:blood supply* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010690:Phlebography; D014057:Tomography, X-Ray Computed; D014680:Veins