English: The Caldwell view is meant to show the frontal sinus more clearly than a standard PA skull radiograph. It is obtained with 15 degrees of caudal angulation of a PA beam. Diagram of the Caldwell view. Modified image from Gray's anatomy via Wikimedia Commons. The original image can be seen at (https://commons.wikimedia.org/wiki/File%3AGray188_no_text_bw.png)
Case courtesy of Dr Matt A. Morgan, <a href="https://radiopaedia.org/">Radiopaedia.org</a>. From the case <a href="https://radiopaedia.org/cases/35611">rID: 35611</a>
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