title: Rare co-occurrence of dural arteriovenous fistula and arteriovenous malformation with bilateral subcortical and basal ganglia calcification.
abstract: The present study describes the imaging findings in a patient with dural arteriovenous fistula (AVR) and arteriovenous malformation (AVM) with bilateral subcortical and basal ganglia calcification. A 29 year old male patient presented with chief complaint of recent onset of generalized tonic clonic seizures and mild disorientation. The imaging studies on MCT demonstrated diffuse, symmetric calcification in the bilateral basal ganglia and subcortical white matter. MR imaging and angiography revealed AVM in parietooccipital region with supply predominantly from left posterior cerebral and middle cerebral arteries. Multiple dural feeders from meningeal branches of occipital and superficial temporal branches of bilateral external carotid and right internal carotid arteries. Calcification is proposed to be due to chronic reflux into the parenchymal veins or vascular steal phenomenon. This rare co-occurrence of subcortical calcification in a patient with a dural AVF and AVM is being reported.
authors: Department of Radiology, Aga Khan University Hospital, Karachi, Pakistan. sayani_raza@yahoo.com
authors: Raza
authors: R
authors: Sayani
authors: Zahid Anwar
authors: ZA
authors: Khan
authors: Tanveer-ul-Haq
authors: Rana Shoaib
authors: RS
authors: Hamid
authors: Muhammed
authors: M
authors: Azeemuddin
mesh_terms: D000328:Adult; D001164:Arteriovenous Fistula / Q000000981:diagnostic imaging* / Q000601:surgery; D001480:Basal Ganglia Diseases / Q000000981:diagnostic imaging* / Q000601:surgery; D002114:Calcinosis / Q000175:diagnosis* / Q000601:surgery; D002533:Cerebral Angiography; D003937:Diagnosis, Differential; D004388:Dura Mater / Q000098:blood supply*; D004621:Embolization, Therapeutic; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000000981:diagnostic imaging* / Q000601:surgery; D008297:Male; D014057:Tomography, X-Ray Computed