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1 Professor and Chairman.
2 Formerly: Instructor in Radiology, University of Colorado Medical Center; currently in private practice of radiology, Jersey Shore Medical center, Neptune, New Jersey.
Comparison of chest roentgenograms of patients with volume loss on one side suggests that symmetric lower anterior ribs favor a congenital etiology while crowding and downward displacement of the lower anterior ribs on the affected side indicate an acquired etiology. Both groups show some crowding of the first 5 ribs on the affected side. Mediastinal and diaphragmatic compensation prevents gross distortion of the external appearance of the chest in the absence of major bony abnormalities.
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