the right upper lobe being most frequently involved and then , in order , the right lower , left upper , left lower , and right middle.-the tuberculous adenitis in the tracheo-bronchial glands was related both anatomically and pathologically to the primary lesion in the lungs , the involvement of the glands being secondary to the lung lesion.-in 25 of the cases considered as primary thoracic infections , no primary lung lesions were found.-in a series of cases in which the type of infection was investigated , 173 human and 3 ( 2.7 % ) bovine strains were found in cases with the primary site of the infection in the thorax.-only human strains were obtained from cases with primary lung lesions.-these findings were in marked contrast to those found in children in the same series with the primary site of infection in the abdomen where 81.8 % of the infecting bacilli were of the bovine type , and also in cases of bone and joint tuberculosis-a blood-borne infection , in which 34.6 % of the causal organisms were bovine strains.-from the pathological and bacteriological evidence , it is concluded that the focus described as the primary lung lesion is indeed such , and that it is due to direct infection of the lungs through the air passages .
C0153676
secondary to the lung
C0024109
lungs