title: [Aneurysm of the subclavian artery: an unusual cause of mediastinal pseudotumor].
abstract: A 62 year old woman presenting with dyspnoea was found to have a large right superior mediastinal opacity compressing neighbouring anatomical structures: trachea, esophagus and superior vena cava. Thoracic ultrasonography suggested a liquid mass which was non-pulsatile. At surgery, however, this was found to be a subclavian artery aneurysm, a diagnosis confirmed by arteriography. The lesion was opened and vascular continuity reestablished by prosthetic grafting. Only five other cases appear to have been reported. The clinical, radiological and etiological aspects are discussed.
mesh_terms: D000783:Aneurysm / Q000175:diagnosis* / Q000601:surgery; D001807:Blood Vessel Prosthesis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008479:Mediastinal Neoplasms / Q000175:diagnosis*; D008875:Middle Aged; D013348:Subclavian Artery / Q000601:surgery
vernacular_title: L'anévrysme de l'artère sous-clavière: une cause rare de pseudo-tumeur médiastinale.