Atrial enlargement refers to a condition where the
left atrium
The atrium (; : atria) is one of the two upper chambers in the heart that receives blood from the circulatory system. The blood in the atria is pumped into the heart ventricles through the atrioventricular mitral and tricuspid heart valves.
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or
right atrium
The atrium (; : atria) is one of the two upper chambers in the heart that receives blood from the circulatory system. The blood in the atria is pumped into the heart ventricles through the atrioventricular mitral and tricuspid heart valves.
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of the heart is larger than would be expected. It can also affect both atria.
Types include:
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Left atrial enlargement
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Right atrial enlargement
References
Cardiomegaly
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