title: Delayed Development of Multiple Pancreaticoduodenal Arcade Pseudoaneurysms after Abdominal Trauma.
abstract: This case report demonstrates development and progressive enlargement of multiple pancreaticoduodenal arcade pseudoaneurysms using computed tomography angiographies over a period of 5 weeks after abdominal trauma. The mechanism of pseudoaneurysm formation, as shown by serial imaging, attributed to preexisting celiac axis stenosis by the median arcuate ligament, posttraumatic celiac artery dissection, and secondary occlusion of proper hepatic artery resulting in elevation of pressure and flow in the pancreaticoduodenal arcade and rupture of small arterial branches. Successful pseudoaneurysm occlusion was achieved through arterial embolization.
authors.affiliation: Department of Radiology, University of Southern California, Los Angeles, CA.
authors.forename: Ashley
authors.initials: A
authors.lastname: Prosper
authors.affiliation: Department of Radiology, University of Southern California, Los Angeles, CA. Electronic address: fsaremi@usc.edu.
authors.forename: Farhood
authors.initials: F
authors.lastname: Saremi
mesh_terms: D000007:Abdominal Injuries / Q000000981:diagnostic imaging / Q000209:etiology* / Q000628:therapy; D000328:Adult; D017541:Aneurysm, False / Q000000981:diagnostic imaging / Q000209:etiology* / Q000628:therapy; D001158:Arteries / Q000000981:diagnostic imaging / Q000293:injuries*; D000072226:Computed Tomography Angiography; D004386:Duodenum / Q000098:blood supply*; D004621:Embolization, Therapeutic; D006801:Humans; D008297:Male; D010179:Pancreas / Q000098:blood supply*; D013997:Time Factors; D016896:Treatment Outcome; D057772:Vascular System Injuries / Q000000981:diagnostic imaging / Q000209:etiology* / Q000628:therapy; D014949:Wounds, Nonpenetrating / Q000000981:diagnostic imaging / Q000209:etiology* / Q000628:therapy