Diagnostic thoracoscopy.
D000328:Adult; D001999:Bronchoscopy; D006333:Heart Failure; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis / Q000175:diagnosis; D010996:Pleural Effusion / Q000175:diagnosis*; D011030:Pneumothorax / Q000175:diagnosis; D020708:Thoracoscopes; D014397:Tuberculosis, Pulmonary / Q000175:diagnosis