[Effect of tumor size and site on the prognosis in patients subjected to surgery for peripheral cancer of the lung].

An analysis of 5-year end results of the surgical treatment of 444 patients with peripheral cancer of the lung failed to establish any correlation between tumor size and prognosis in cases of lymph node involvement. In metastasis-free patients, the best results were obtained with tumor diameters under 2 cm regardless of their localization in lung tissue and with 2--4.9 cm tumors embedded in lung parenchyma. The results were somewhat worse in cases of tumors with diameters of 5.0 cm and more located deep in lung tissue as well as with tumors measuring more than 2 cm and extending through the visceral pleura and adjacent lobes. The worst end results were recorded in cases of tumors larger than 2 cm which extended into the adjacent structures of the thoracic cavity.