Transbronchial needle aspiration for lung cancer patients, especially for the cases in which cancer cells were negative in the specimens taken by the brushing method

Abstract

Cancer cells were negative in the specimens taken from 4 cases by the transbronchial peripheral brushing method through bronchoscope. These lesions had originated in the unsuitable sites for taking the specimens for diagnosis. It was suggested that the transbronchial aspiration cytology with a needle improved by us is suitable for the establishment of diagnosis of such lesions.