Snapshot A 25-year-old woman with no history of trauma presents with right arm pain. She reports that her right arm is easily fatigable, especially after she cooks. She is a chef and denies any history of smoking, hyperlipidemia, or peripheral artery disease. On physical exam, her right upper extremity is pale and cool to the touch. Her distal right radial pulse is diminished compared to her left. Radiography reveals a cervical rib. Introduction Clinical definition login to view 6 more bullets Epidemiology login to view 2 more bullets Etiology login to view 11 more bullets Pathogenesis login to view 2 more bullets Presentation Symptoms login to view 11 more bullets Physical exam login to view 13 more bullets Imaging Radiographs login to view 5 more bullets Magnetic resonance imaging (MRI) login to view 2 more bullets Ultrasound login to view 4 more bullets Angiography login to view 4 more bullets Studies Making the diagnosis login to view 1 more bullet Differential Other causes of vascular compromise, such as emboli login to view 2 more bullets Treatment Conservative login to view 3 more bullets Medical login to view 6 more bullets Operative login to view 5 more bullets Complications Aneurysm formation (post-stenotic) Thromboembolism