[The criteria for choosing the extent of the resection of neighboring organs (structures) in lung cancer patients].

Clinical and morphological criteria for the extent of resection of the adjacent organs (structures) involved in the metastatic process were defined by analyzing 598 extensive, combined, and extensive-combined operations for giant-cell carcinoma of the lung. Morphological studies of the serial sections of resected intrathoracic structures showed that the true margins of the process extent do not always correspond to those determined on revision or palpation. It was indicated that for radical intervention, the pericardium should be resected at least at 2 cm from the visible invasion edges when a tumor is extended into it. When the process is extended into the diaphragm and chest, resection should be made at least at 2 cm of the tumor edges. In endobronchial carcinoma, the bronchus should be dissected at a distance of at least 1 cm from the tumor edges, but in peribronchial and mixed forms, it should be done at least at 2 cm. Intraoperative morphological studies are demonstrated to be of high diagnostic value in identifying the local and regional extent of lung cancer.