. The American journal of roentgenology, radium therapy and nuclear medicine . -pe, having its origin in one of the largebronchi near the hilus, a roughly circularshadow will be seen extending outwardfrom the hilus. The outer edge of thisshadow is not sharply circumscribed butshades off into the surrounding lung shadowand has projecting from it processes thatradiate out into the lung. Bevond this. Fig. I. Carcixoma of the Lung. Fig. Bexigx Tumor—Pkoharly IntrathoracicGoiter. There are usually no earlv svmptoms thatare characteristic, ])ut there may be symp-toms to arouse suspicion and
. The American journal of roentgenology, radium therapy and nuclear medicine . -pe, having its origin in one of the largebronchi near the hilus, a roughly circularshadow will be seen extending outwardfrom the hilus. The outer edge of thisshadow is not sharply circumscribed butshades off into the surrounding lung shadowand has projecting from it processes thatradiate out into the lung. Bevond this. Fig. I. Carcixoma of the Lung. Fig. Bexigx Tumor—Pkoharly IntrathoracicGoiter. There are usually no earlv svmptoms thatare characteristic, ])ut there may be symp-toms to arouse suspicion and lead to thor-ough investigation. Among the earliest ofthese may be a slight discomfort—at timesamounting to pain—in an area correspond-ing to the liila of the lungs. There is often,also, a slight, gradually increasing the discomfort and dyspneathere may be a dry, unproductiAe cough. If these symptoms lead to careful physi-cal examination of the chest, a small area ofdullness may be discovered, especially a wid-ening of the area of dullness about the rootof the lung. There may also be diminishedbreath sounds, but no rales. If roentgen ex- shadow which represents the pathologicalprocess itself is a more or less extensivearea, somewhat less dense than the tumorshadow, and quite homogeneous in charac-ter. This is caused by congestion in the sur-rounding lung and pro
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