Unruptured intracranial arteriovenous malformations do cause mass effect.
Sixty patients with clinically unruptured intracranial arteriovenous malformations were studied with high-resolution computed tomography. In 33, local and distant mass effects were evidenced by compression, distortion, and displacement of normal anatomic structures by the malformation, its afferent and efferent vessels, and the surrounding edema.
D001929:Brain Edema / Q000000981:diagnostic imaging / Q000209:etiology*; D002493:Central Nervous System Diseases / Q000209:etiology; D002533:Cerebral Angiography; D002539:Cerebral Arterial Diseases / Q000000981:diagnostic imaging / Q000209:etiology; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000150:complications* / Q000000981:diagnostic imaging; D011856:Radiographic Image Enhancement; D014057:Tomography, X-Ray Computed