What is enlargement of the atrium?
Cardiomegaly means abnormal enlargement of the heart. (cardi/o = heart, and-megaly= enlargement. Alternate terms are megalocardia or macrocardia. Cardiomegaly is the generic term for an enlarged heart, but specific types have specialized names like hypertrophic cardiomypoathy.The word for something which is enlarged ends in -megaly.The heart is described with the prefix cardio-, therefore an enlarged heart is called cardiomegaly. This has multiple causes.Other examples include splenomegaly, enlargement of the spleen, and hepatomegaly, enlargement of the liver.