X-ray chest PA view showing biatrial enlargement

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X-ray chest PA view showing biatrial enlargement

X-ray chest PA view showing biatrial enlargement
X-ray chest PA view showing biatrial enlargement

X-ray chest PA view showing biatrial enlargement. Right atrial enlargement is manifest as the enlargement of the cardiac outline towards the right side. Left atrial enlargement is seen as a double atrial contour (shadow within shadow) within the right heart border. Straightening of the left heart border is also partly due to the enlargement of the appendage of left atrium.