title: [Evaluation of the pneumomediastinum for the diagnosis of tumours in the anterior mediastinum(author's transl)].
abstract: Using a correct retrosternal technique, adequate insufflation of negative contrast material and good radiography, a pneumo-mediastinum is the method of choice for the investigation of retrosternal tumours with respect to their position, size and shape.  By means of experiments on cadavers, a suitable needle was developed.  The method of air insufflation and radiographic positioning are described.  The results of our examinations are detailed and the method is discussed.
mesh_terms: D000328:Adult; D002102:Cadaver; D003287:Contrast Media / Q000008:administration & dosage; D004646:Emphysema / Q000209:etiology; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging*; D009339:Needles; D010100:Oxygen; D011012:Pneumomediastinum, Diagnostic / Q000009:adverse effects; D011292:Premedication; D013945:Thymoma / Q000000981:diagnostic imaging; D013952:Thymus Hyperplasia / Q000000981:diagnostic imaging; D013953:Thymus Neoplasms / Q000000981:diagnostic imaging; D014056:Tomography, X-Ray
chemical_list: D003287:Contrast Media; D010100:Oxygen
vernacular_title: Zur Wertigkeit des Pneumomediastinum bei der Diagnostik von Tumoren im vorderen Mediastinum