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Radiology General 4951cccb

Not a sign of Right atrial enlargement:

A
Prominent right heart border with increased convexity (PA view)
B
Prominent anterosuperior part of cardiac shadow (lateral view)
C
Obliteration of retrosternal clear space (Lateral view)
D
Haffman-Rigler Sign (Lateral view)
High-Yield Explanation
Haffman-Rigler sign - Horizontal distance of greater than 1.8cm between posterior aspect of IVC and Posterior border of heart - Sign of Left Ventricular enlargement.

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