. Roentgen interpretation; a manual for students and practitioners . Fig. 110.—Old empyema, with calcification in the right pleura. LUNG FIELDS 135 of lung marking. In the presence of pleural adhesions where thecollapse is incomplete, the shadow of the pnemnothorax may bedivided by bands which give it a sacculated appearance and pneumo-thorax and lung tissue may overlap each other. A small localizedpneumothorax may be difficult to detect unless it is seen in profile;otherwise it appears as an area of somewhat increased radiabilityoverlaid by normal lung markings. This should not be confusedwit
. Roentgen interpretation; a manual for students and practitioners . Fig. 110.—Old empyema, with calcification in the right pleura. LUNG FIELDS 135 of lung marking. In the presence of pleural adhesions where thecollapse is incomplete, the shadow of the pnemnothorax may bedivided by bands which give it a sacculated appearance and pneumo-thorax and lung tissue may overlap each other. A small localizedpneumothorax may be difficult to detect unless it is seen in profile;otherwise it appears as an area of somewhat increased radiabilityoverlaid by normal lung markings. This should not be confusedwith large cavities which occur in the substance of the lung and mayor may not have well-defined borders. Calcifications frequently appear in the pleura in a form of raggedplaques or lines which occur in any portion of Fig. 111.—Peribronchial tuberculosis. Advanced tuberculosis two years later. Tuberculosis.—^The primary focus in tuberculosis is probably inthe periphery of the lung but it is not always evident. However,w^e see an increase in the root shadows as a result of glandularinvolvement which, particularly in children, is often marked. Inthe acute stage their outlines are blurred and indistinct. If healingoccurs the shadows gradually diminish in size, increase in densityand sharpness of outline, and subsequently show areas of calcification.,,As the infection progresses, the next change is general thickening 136 THE CHEST of the bronchial markings along the track of the disease, usuallytoward one or both tops. When this has occurred the patient willusually show dullness at the affected area clinically. Because ofthe normal thickening toward both bases the stage is difficult torecognize when the extension is downward but it is much less com-mon in this situation. Plates of most adult lungs
Size: 1781px × 1402px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookidroentgeninte, bookyear1919
