Fig. 21-3. Oblique (R.A.O.) view of thorax. The esophagus is shown coated with barium paste. Note the vertical folds of the mucosa and the indentations produced by the arch of the aorta (upper white arrow) and by the left main bronchus (lower white arrow). Note also the right and left domes of the diaphragm (on the left and right sides of the illustration, respectively) and the fluid level in the stomach (black arrow). (From Bassett, D.L., A Stereoscopic Atlas of Human Anatomy, Sawyer's, Portland, Oregon, 1958. Copyright 1958, Sawyer's Inc.) Click for high resolution image.

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