title: Thrombus simulating flow void: a pitfall in diagnosing aqueductal patency by high-field MR imaging.
mesh_terms: D000328:Adult; D001254:Astrocytoma / Q000473:pathology*; D002535:Cerebral Aqueduct / Q000473:pathology*; D002551:Cerebral Ventricle Neoplasms / Q000473:pathology*; D002557:Cerebrospinal Fluid Shunts; D003937:Diagnosis, Differential; D006801:Humans; D006849:Hydrocephalus / Q000473:pathology; D002542:Intracranial Embolism and Thrombosis / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D011183:Postoperative Complications / Q000473:pathology; D014402:Tuberous Sclerosis / Q000473:pathology*