title: [Obstruction of the superior vena cava and right subclavian vein: a propos of 2 unusual cases].
abstract: Two uncommon cases of vein obstruction are presented. In the first case a syndrome of superior, caval vein obstruction was caused by idiopathic fibrous mediastinitis involving the vein wall, and creating a tumefaction in the lumen of the vein simulating the existence of a benign tumor (fibroma) of the wall. This tumefaction was removed by endvenectomy, and the venotomy was repaired by a pericardial patch. In the second case the obstruction of the right subclavian vein was caused by a stenosed valve without signs of inflammation nor consecutive thrombosis. Until the present day no other similar case of a stenosed valve in the right subclavian vein has been reported.
mesh_terms: D003251:Constriction, Pathologic; D005260:Female; D006801:Humans; D008297:Male; D008480:Mediastinitis / Q000150:complications; D008875:Middle Aged; D011859:Radiography; D013350:Subclavian Vein / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D014652:Vascular Diseases / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology / Q000601:surgery; D014683:Vena Cava, Superior / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery
vernacular_title: Obstruction de la veine cave supérieure et sous-clavière droite: a propos de deux cas peu communs.