title: [Indications for mediastinoscopy].
abstract: Mediastinoscopy is a surgical examination exploring the anterior and superior mediastinum for diagnosing and localizing lesions, after taking such precautions as the elimination of vascular lesions. The indications are : interbronchial and intertracheobronchial opacities ; polylobulated mediastinal opacities ; the isolated opacity (in case of inconclusive mediastinoscopy, operate straight away) ; pulmonary lesions : to look for mediastinal node untraceable on X-ray. In the particular case of a broncho-pulmonary cancer, if it is anaplastic, mediastinoscopy is useful to determine diagnosis and contra-indications ; in other bronchial cancers, there are contra-indications in the case of bilateral invasion and blocking of mediastinal organs. Surgery is advised in case of hypertrophied though negative lymph nodes.
mesh_terms: D001984:Bronchial Neoplasms / Q000175:diagnosis; D006801:Humans; D008171:Lung Diseases / Q000175:diagnosis; D008175:Lung Neoplasms / Q000175:diagnosis; D008477:Mediastinal Diseases / Q000175:diagnosis*; D008479:Mediastinal Neoplasms / Q000175:diagnosis*; D008481:Mediastinoscopy / Q000009:adverse effects
vernacular_title: Indications de la médiastinoscopie