CLINICAL ANALYSIS OF LUNG CANCER WITH PLEURAL EFFUSION

概要

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In a recent 5-year period, 31 cases of primary lung cancer with pleural effusion were experienced at the department. All cases underwent cytological examination of pleural effusion, and 18 cases were negative (negative group) and 13 were positive (positive group). Both groups were compared for prognosis. No 5-year survivor was noted in the both groups, and there was no significant difference in the prognosis between them. though prognoses of them were poor. The existence of pleuritis carcinomatosa in the negative group was examined pathologically for operated cases and roentgenographically for non-operated cases. Of 18 cases in the negative group, at least 7 cases of pleuritis carcinomatosa could be confirmed. A probable factor for poor prognosis in negative group might be admixture of false negative cases of pleuritis carcinomatosa. There is a great possibility of false negative or pleuritis carcinomatosa with non cacerous pleural effusion, if lung cancer is adenocarcinoma with no combined disease such as atelectasis or pneumonia and located in contact with pleura, even though cytology of pleural effusion is negative. In a case of hilar type of lung cancer or hilar lymph node metastasis, we should pay attention to a possible invasion to the greater vessels.
日本臨床外科学会の論文