Cryosurgery of pulmonary metastases. |
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Authors: | G Uhlschmid E Kolb F Largiadèr |
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Affiliation: | Department of Surgery A, University Hospital Zurich, Zurich, Switzerland |
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Abstract: | Indications and results of 33 cryosurgical interventions for metastatic tumors in the lung are presented. Regression of local and metastatic pulmonary growth on the contralateral side was observed in four cases. Nine cases showed temporary halt of metastatic pulmonary tumor growth. The technique of cryosurgery for pulmonary metastases is reviewed. The procedure of cryosurgery of pulmonary metastases was found to be an innocuous method to attempt both tumor destruction and eventually specific immunologic stimulation. Preliminary observations with the lymphocytes and sera indicate that cryosurgery of pulmonary metastases induces an increase in specific cell mediated immune response without producing blocking serum factors and may give rise to specific, complement dependent cytotoxic antibodies. In one case both mechanisms were observed after cryotherapy. In three cases with progressive disease, lymphocyte mediated cytotoxicity alone was stimulated. |
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