Mediastinal lymphography.
D000818:Animals; D003287:Contrast Media; D004285:Dogs; D006257:Head; D006258:Head and Neck Neoplasms / Q000000981:diagnostic imaging; D008198:Lymph Nodes; D008208:Lymphatic System / Q000033:anatomy & histology; D008220:Lymphography; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging; D008482:Mediastinum / Q000000981:diagnostic imaging*; D009362:Neoplasm Metastasis
D003287:Contrast Media