. The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent; designed for the use of practitioners and students . fine andcoarse moist rales at base and back. February 13. X-ray examination %vith screen on seventh day of dis-ease ; right lung dark from middle of first intercostal space to fourthrib, the upper and lower border of this dark area well marked. Out-lines in chest rather less clear than normal on both sides. Diaphragmmoved centimetres on the right side and 4 centimetres on left side. It will be seen that the Hmits of the dense lung were well def


. The Roentgen rays in medicine and surgery as an aid in diagnosis and as a therapeutic agent; designed for the use of practitioners and students . fine andcoarse moist rales at base and back. February 13. X-ray examination %vith screen on seventh day of dis-ease ; right lung dark from middle of first intercostal space to fourthrib, the upper and lower border of this dark area well marked. Out-lines in chest rather less clear than normal on both sides. Diaphragmmoved centimetres on the right side and 4 centimetres on left side. It will be seen that the Hmits of the dense lung were well definedboth above and below (Fig. 106). The physical examination did notshow that the lung was clear at the extreme apex. X-Ray Examination zvith Screen. — Fifteenth day of disease ; dia-phragm moved centimetres on the right side, centimetres on 174 THE ROENTGEN RAYS IN MEDICINE AND SURGERY the left side. Twentieth day of disease; diaphragm moved 5 centi-metres on right side, 7 centimetres on left side; original dark areahas grown steadily lighter, but is not yet so bright as other portions of A^ame/ddress Occupation Vol ^/7 Page ZZZ. Fic. 106. Bernnrd McL. Pneumonia. X-ray examination with screen ; seventh day of of pneumonia sharply defined. Lung clear at apex. Physical examination did not showthis fact. Movement of diaphragm on right side, centimetres; on left side, 4 centimetres. (One-third life size.) the lung. Tivcnty-second day of disease; diaphragm moved centi-metres on the right side and centimetres on the left side. Persistence of X-Ray Signs. — Improveniejtt watcJied on the Flnores-cent Screen. However much the lungs may be affected in pneumonia,we may see by means of successive X-ray examinations with the fluores- PNEUMONIA 175 cent screen that, as the patient begins to improve, the dark areas seenon the screen become Ughter and lighter, and diminish in extent, untilthey finally disappear. We may also watch the diaphragm and se


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