title: An unusual cause of gastric outlet obstruction: a pancreaticoduodenal artery aneurysm.
abstract: We present a rare case of gastric outlet obstruction due to compression of the duodenum by a pancreaticoduodenal artery (PDA) aneurysm 2.5 cm in diameter, in a 43-year-old man from Saudi Arabia who presented with persistent vomiting and epigastric pain. The initial investigations and blood works were negative, and esophagogastroduodenoscopy (EGD) was unremarkable. A CT abdomen demonstrated a mass around the duodenum and dilatation of the stomach, and CT angiography showed the PDA aneurysm. The patient was stabilized and then referred to a tertiary center for embolization. Our case demonstrates a diagnostic challenge that physicians may encounter in patients who present with vomiting and epigastric pain.
authors.affiliation: Department of Internal Medicine, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia. aalhasan@uqu.edu.sa
authors.forename: Abdulaziz
authors.initials: A
authors.lastname: Alhasan
authors.forename: Patan M
authors.initials: PM
authors.lastname: Khan
mesh_terms: D015746:Abdominal Pain / Q000209:etiology; D000328:Adult; D000783:Aneurysm / Q000150:complications* / Q000175:diagnosis / Q000628:therapy; D000792:Angiography / Q000379:methods; D004386:Duodenum / Q000098:blood supply; D004621:Embolization, Therapeutic / Q000379:methods; D017219:Gastric Outlet Obstruction / Q000209:etiology*; D006801:Humans; D008297:Male; D010179:Pancreas / Q000098:blood supply; D012529:Saudi Arabia; D014057:Tomography, X-Ray Computed / Q000379:methods; D014839:Vomiting / Q000209:etiology
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