Mediastinoscopy.
D001984:Bronchial Neoplasms / Q000175:diagnosis; D004938:Esophageal Neoplasms / Q000175:diagnosis; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis; D008481:Mediastinoscopy / Q000009:adverse effects*; D008722:Methods; D012507:Sarcoidosis / Q000000981:diagnostic imaging; D013896:Thoracic Diseases / Q000175:diagnosis; D013899:Thoracic Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging; D014056:Tomography, X-Ray