This study was made to clarify the result of surgical treatment and the choice of treatment for the cases with negative bacilli and noncavitary caseous lesions.
The subject of this study consisted of 404 cases with negativ e bacilli and noncavitary caseous lesions among 7, 055 cases who had undergone the operation during the period from 1965 to 1967 at 53 institutions belonging to the Tuberculosis Research Committee (RYOKEN) and had been observed for more than 6 months postoperatively.
Cases with noncavitary caseous lesions who had been sputu m negative for tubercle bacilli for more than 6 months by monthly examination were subjected to this study.
The result of surgical treatment were evaluated according to the criteria u s ed in our previous several reports; namely rate of successful case, negative sputum case, death case and cases with postoperative complications.
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