[Occipital sinus as a potential differential diagnosis in patients suspect of dural sinus thrombosis--a case report].
BACKGROUND
The diagnosis of dural sinus thrombosis despite of using modern imaging techniques still remains a difficult problem. For satisfactory interpretation of CT and MR scans it is indispensably important the knowledge of anatomical variations and possible imaging artifacts. One of the relatively rare developmental variations--giving chance for making false positive diagnosis--is the occipital sinus with hypoplasia or agenesis of transverse sinus.
The incidence, the anatomical classification, the importance and the possibility of differentiation from sinus thrombosis are reviewed based on case reports of four patients.
Osztie
Eva
E
Országos Idegsebészeti Tudományos Intézet, MR-labor, 1145 Budapest, Amerikai út 45.
Martos
János
J
D000328:Adult; D002648:Child; D003392:Cranial Sinuses; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009777:Occipital Bone; D010690:Phlebography / Q000379:methods; D012851:Sinus Thrombosis, Intracranial / Q000175:diagnosis*