title: [Lack of attachment of the superior vena cava to the mediastinum. Apropos of 2 cases].
abstract: Two cases in which the superior venae cavae ran an extramediastinal course are presented. This abnormality, which was discovered on catheterisation, had no haemodynamic consequences. It consisted of two superior venae cavae with little or no intermediate trunk; this explains the lack of attachment' of the superior venae cavae to the mediastinum.
mesh_terms: D006328:Cardiac Catheterization; D002648:Child; D002675:Child, Preschool; D003287:Contrast Media; D005260:Female; D006801:Humans; D008297:Male; D008482:Mediastinum / Q000032:analysis; D014683:Vena Cava, Superior / Q000002:abnormalities* / Q000601:surgery
chemical_list: D003287:Contrast Media
vernacular_title: "Absence d'amarrage" de la veine cave supérieure au médiastin. A propos de 2 observations