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What information may be obtained from an oblique roentgen-ray study of the thorax?
1. The location and estimation of the extent of substernal enlargements.
2. The location and outline of mediastinal tumors.
3. The size and outline of the glandular tissue (bronchial and thymus).
4. The location of foreign bodies of a certain type (Fig. 1).
5. The outline of the exact course of the trachea with the detection of any irregularity in its size, shape or position.
6. The condition of the thoracic spine (Fig. 2).
7. An estimation of the size, shape and density of any part or parts of the thoracic circulatory system (Figs. 3, 4 and 5).
8. The condition of the diaphragm and the location of posteriorly formed pleuropericardial or spinal pericardial adhesions (Fig. 6).
9. The location and outline of pulmonary suppurations (the patient lying on the side).
10. The behavior of the "barium
PRITCHARD JS. THE VALUE OF LATERAL AND OBLIQUE ROENTGEN-LIGHT EXPOSURE IN THE DIAGNOSIS OF THORACIC AFFECTIONS. Arch Surg. 1925;10(1):557-567. doi:10.1001/archsurg.1925.01120100569032