Cardiomegaly

Radswiki et al.

Cardiomegaly is a catch-all term to refer to enlargement of the heart, and should not be confused with causes of enlargement of the cardiomediastinal outline, or enlargement of the cardiac silhouette

Aetiology

There are many aetiologies for cardiomegaly:

Although in most cases merely 'eye-balling' a chest x-ray will be sufficient in detecting cardiomegaly (as in most cases the heart is either clearly normal in size or clearly abnormally enlarged) when unsure the cardiothoracic ratio can be measured.

Specific cardiac chamber enlargement can be recognised by cardiac contour changes, new or different interfaces with adjacent lung, and/or displacement of adjacent mediastinal structures. These are discussed separately:

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Article Information

rID: 12661
System: Cardiac
Section: Gamuts
Synonyms or Alternate Spellings:
  • Enlarged heart
  • Cardiac enlargement

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     Case 3
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    Case 4: with concurrent pleural effusion
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    Case 5: right sided cardiomegaly
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