. The American journal of roentgenology, radium therapy and nuclear medicine . Fig. 6. healthy lung tissue and the disease willtake on renewed activity. An even more unfavorable condition forspontaneous or operative cure exists in a 164 Lung Abscess and Bronchiectasis case of the type shown in Fig. 6. Here notonly has a cavity persisted but there isan induration and consoHdation of theright upper lobe about it. The result ofthis is a progressive round cell infiltration,fibrosis; the terminal bronchioles are stran-gled and secondary bronchiectatic cavitiesdevelop. Usually these secondary caviti


. The American journal of roentgenology, radium therapy and nuclear medicine . Fig. 6. healthy lung tissue and the disease willtake on renewed activity. An even more unfavorable condition forspontaneous or operative cure exists in a 164 Lung Abscess and Bronchiectasis case of the type shown in Fig. 6. Here notonly has a cavity persisted but there isan induration and consoHdation of theright upper lobe about it. The result ofthis is a progressive round cell infiltration,fibrosis; the terminal bronchioles are stran-gled and secondary bronchiectatic cavitiesdevelop. Usually these secondary cavitiesare much smaller and are not visible onthe plate. In fact, in the great majorityof the cases only one fairly large cavity. sions in the symptoms and the physicalsigns. In such a remission, which is favoredby residence in the countn,, both symp-toms and physical signs may be absentor they may be so slight that their impor-tance and significance are not such circumstances the roentgenexamination will always show evidence ofdisease. I will not speak of the cases inwhich the roentgen plate discloses one ormore cavities that have eluded physicalexamination, which is not charged to the


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