c.The rotation required to superimpose either of two such lines or planes on the other. d.The space between such lines or surfaces. e.A solid angle. 2.A sharp or projecting corner, as of a building. 3. a.The place, position, or direction from which an object is presented to view:...
The anterior cardiophrenic angle (ACA) is the lowermost anterolateral portion of the mediastinum. It is limited inferiorly by the diaphragm, anteriorly by the chest wall, posteriorly by the pericardium, and laterally by the parietal pleura. In 20% computed tomography (CT) of the normal ACA sho...