title: The radiological investigation of metastatic invasion of the azygos node.
mesh_terms: D000792:Angiography; D001401:Azygos Vein; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging*; D008198:Lymph Nodes / Q000000981:diagnostic imaging*; D008207:Lymphatic Metastasis; D008482:Mediastinum / Q000000981:diagnostic imaging; D014056:Tomography, X-Ray; D014132:Trachea / Q000000981:diagnostic imaging; D014684:Venae Cavae