Mediastinoscopy.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D004724:Endoscopy; D005260:Female; D006801:Humans; D007223:Infant; D008175:Lung Neoplasms / Q000175:diagnosis*; D008297:Male; D008477:Mediastinal Diseases / Q000175:diagnosis*; D008479:Mediastinal Neoplasms / Q000175:diagnosis; D008482:Mediastinum; D008875:Middle Aged