title: MEDIASTINOSCOPY: A METHOD OF BIOPSY IN THE SUPERIOR MEDIASTINUM.
mesh_terms: D001706:Biopsy; D004724:Endoscopy; D008175:Lung Neoplasms; D008481:Mediastinoscopy; D008482:Mediastinum; D009369:Neoplasms / Q000175:diagnosis*; D013902:Radiography, Thoracic; D013525:Surgical Instruments
keywords: BIOPSY; ENDOSCOPY; LUNG NEOPLASMS; MEDIASTINUM; NEOPLASM DIAGNOSIS; SURGICAL INSTRUMENTS; THORACIC RADIOGRAPHY