. Radio-diagnosis of pleuro-pulmonary affection . the contrary, veryinstructive to continue to make radioscopic examinationsalmost as often as auscultation to compare the differencefrom time to time. A study therefore can be made at thesame time by both methods of the development of thelesions in one sense or another, and useful indications canbe drawn for prognosis and treatment. WTien a tuberculous center is healed, it is not seen todisappear on the radioscopic screen; it persists even whencompletely cicatrized. The abnormal shadow indicatesalwaj^s the site of the healed lesions, although au
. Radio-diagnosis of pleuro-pulmonary affection . the contrary, veryinstructive to continue to make radioscopic examinationsalmost as often as auscultation to compare the differencefrom time to time. A study therefore can be made at thesame time by both methods of the development of thelesions in one sense or another, and useful indications canbe drawn for prognosis and treatment. WTien a tuberculous center is healed, it is not seen todisappear on the radioscopic screen; it persists even whencompletely cicatrized. The abnormal shadow indicatesalwaj^s the site of the healed lesions, although auscultationhas been negative for a long time. The process of healingcan however be followed on the screen. If the abnormalshadow does not disappear, it is reduced: the inflammatoryzone which surrounds it and makes it appear larger and morediffuse disappears. The contours become more clearlydemarcated. At the same time the abnormal shadowsproduced by the inflammatory process adjacent to thebronchial and peribronchial glands become lighter, or even. Radiograph 38. PULMONARY TUBERCULOSIS WITH VERY SLOWPROGRESS (30 YEARS), SCLEROTIC TENDENCYTotal obscurity of the right apex with a clear zone—cavity. Very dense shadowsin the region of the hilus on both sides. Small scattered, very opaque spots. De-velopment—began at twenty-two years with bronchitis. Attack of tuberculousbroncho-pneumonia at thirty-three years. Slow progress with periods of at fifty-three years of age. Autopsy—right pleural adhesions. Right lung—induration of the apex with old cavity outlined by rigid calcareous walls. CEdema-tous congestion of the base. Left lung—sclerosis and emphysema. No center ofcaseation. Some hard sclerotic glands toward the hilus.
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