title: Discrepancy between preoperative imaging and postoperative pathological finding of ruptured intracranial dissecting aneurysm, and its surgical treatment: case report.
abstract: The choice of therapeutic strategy for intracranial dissecting aneurysm is often based on radiographic features, including characteristic geometry (e.g., irregular stenosis, segmental stenosis, aneurysm formation [pearl-and-string sign]), irregular fusiform or aneurysmal dilation, double lumen, and tapering occlusion. However, there is often a discrepancy between preoperative radiographic data and actual dissecting length. The present report describes three cases in which there was a discrepancy between preoperative radiographic data and actual dissecting length in patients undergoing direct trapping with or without revascularization. All three cases experienced good outcomes, but these cases underscore the fact that open surgery is a good option for management of ruptured intracranial dissecting aneurysms for determination of the rupture point, dissecting length, and the relationship between dissecting area and small arteries arising from the associated vessel.
authors.affiliation: Stroke Center, Department of Neurosurgery, Teishinkai Hospital.
authors.forename: Nakao
authors.initials: N
authors.lastname: Ota
authors.forename: Rokuya
authors.initials: R
authors.lastname: Tanikawa
authors.forename: Hiroyasu
authors.initials: H
authors.lastname: Kamiyama
authors.forename: Takanori
authors.initials: T
authors.lastname: Miyazaki
authors.forename: Kosumo
authors.initials: K
authors.lastname: Noda
authors.forename: Makoto
authors.initials: M
authors.lastname: Katsuno
authors.forename: Naoto
authors.initials: N
authors.lastname: Izumi
authors.forename: Masaaki
authors.initials: M
authors.lastname: Hashimoto
mesh_terms: D000328:Adult; D000784:Aortic Dissection / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery*; D017542:Aneurysm, Ruptured / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery*; D002340:Carotid Artery Diseases / Q000473:pathology / Q000601:surgery; D002343:Carotid Artery, Internal / Q000473:pathology / Q000601:surgery; D002531:Cerebellum / Q000098:blood supply; D002533:Cerebral Angiography; D003399:Craniotomy; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D002532:Intracranial Aneurysm / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis* / Q000473:pathology; D013345:Subarachnoid Hemorrhage / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed; D014711:Vertebral Artery / Q000473:pathology / Q000601:surgery