. Journal of roentgenology . Figure 2 This figure illustrates the approximate location of the lobe on the posteriorsurface when viewed in the fluroescent screen upright posture. It will be notedthat the apex of the lower lobe is approximately the third rib posteriorally orthe level of the sterno clavicular articulation anteriorally. ORNDOFF — TUBERCULAR LI NT, PARENCHYMA 211. No. 540 Report from stereo-roentgenogram shows practically negative left lung shows a very dense discrete well defined calcific lesion beneath thefirst interspace mid-clavicular line and deep in the parenchyma


. Journal of roentgenology . Figure 2 This figure illustrates the approximate location of the lobe on the posteriorsurface when viewed in the fluroescent screen upright posture. It will be notedthat the apex of the lower lobe is approximately the third rib posteriorally orthe level of the sterno clavicular articulation anteriorally. ORNDOFF — TUBERCULAR LI NT, PARENCHYMA 211. No. 540 Report from stereo-roentgenogram shows practically negative left lung shows a very dense discrete well defined calcific lesion beneath thefirst interspace mid-clavicular line and deep in the parenchyma below the lesion is noted near the mediastinum in the apical region. It simulatesa cone lesion of Dunham. However, very little of the diffuse density can beobserved but the outline can be followed by the broncho-parenchymal or linearmarkings. The conclusions indicate the calcific lesion is probably a healed orinactive lesion. Such calcific masses may indicate the site of the initial lesionof tuberculosis as described by Ghon. The cone lesion is probably quiescent orhealed also. On the left side at the costo-chondral junction of the first rib there is noteda dense irregular deposit of calcium. The stereoscopic view prevents the possi-bility of confusion between calcium deposits in the cartilage of the ribs and inlung parenchyma. 212 THE JOURNAL OF ROENTG


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