[Indications for mediastinoscopy in lung cancer].

An experience with 371 mediastinoscopies in lung cancer patients is analysed. The enlargement of intrathoracic lymph nodes revealed roentgenologically or bronchoscopically is considered by the authors to be the basic indication to mediastinoscopy. Among 270 such patients the positive result of mediastinoscopy was noted in 128 (47.3%). Among the remaining 101 patients, in whom none of the methods concerned revealed lymph nodes enlargement, the positive results of mediastinoscopy were noted only in 3 (2.97%).