title: Large basilar perforator pseudoaneurysm: A case report.
abstract: Basilar perforator aneurysms are rare and a communication between a basilar perforator and a separate pseudoaneurysm cavity is extremely rare. We describe a case presenting with high grade subarachnoid hemorrhage which on further investigation delineated a 2-3 mm dissecting basilar perforator aneurysm communicating superiorly into a contained 6 mm pseudoaneurysm cavity. This case illustrates an unusual neurovascular pathology with low potential for successful endovascular treatment such as coil embolization or intracranial flow diverter stenting. Conservative medical management remains the main stay of treatment for such poor surgical candidates.
authors.affiliation: Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
authors.forename: Vistasp J
authors.initials: VJ
authors.lastname: Daruwalla
authors.affiliation: Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
authors.forename: Furqan H
authors.initials: FH
authors.lastname: Syed
authors.affiliation: Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
authors.forename: Ali H
authors.initials: AH
authors.lastname: Elmokadem
authors.affiliation: Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.|Departments of Radiology and Neurological Surgery, Northwestern University, Feinberg School of Medicine, Chicago, IL, USA.
authors.forename: Michael C
authors.initials: MC
authors.lastname: Hurley
authors.affiliation: Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.|Departments of Radiology and Neurological Surgery, Northwestern University, Feinberg School of Medicine, Chicago, IL, USA.
authors.forename: Ali
authors.initials: A
authors.lastname: Shaibani
authors.affiliation: Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA s-ansari@northwestern.edu.|Departments of Radiology and Neurological Surgery, Northwestern University, Feinberg School of Medicine, Chicago, IL, USA.
authors.forename: Sameer A
authors.initials: SA
authors.lastname: Ansari
mesh_terms: D000368:Aged; D017541:Aneurysm, False / Q000000981:diagnostic imaging / Q000628:therapy*; D017542:Aneurysm, Ruptured / Q000601:surgery; D015901:Angiography, Digital Subtraction; D000959:Antihypertensive Agents / Q000627:therapeutic use; D002533:Cerebral Angiography; D000072226:Computed Tomography Angiography; D004621:Embolization, Therapeutic; D057510:Endovascular Procedures; D017809:Fatal Outcome; D006801:Humans; D021621:Imaging, Three-Dimensional; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging / Q000628:therapy*; D008297:Male; D015607:Stents
chemical_list: D000959:Antihypertensive Agents
keywords: Basilar perforator aneurysm; CT angiography; acute subarachnoid hemorrhage; endovascular coil embolization; flow diversion stenting