Cardiac Radiography > Pathology > Pathologic Conditions > Lesions Presenting with Normal Vascularity and Cardiac Enlargement


Lesions Presenting with Normal Vascularity and Cardiac Enlargement

The following lesions typically present with an enlarged chamber or non-specific cardiac enlargement: pericardial effusion, increased preload (volume overload), treated or compensated heart failure, and myocardiopathy. Increased preload is most frequently the result of valvular regurgitation although it can also result from pregnancy and severe chronic anemia. From a practical standpoint, it is most efficient to look first for left atrial enlargement (see previous) as its absence effectively excludes chronic mitral regurgitation as the cause of the cardiomegaly. Occasionally the so-called "lateral fat-stripe sign" will be seen in patients with pericardial effusion.

 

Left ventricular enlargement in a male patient; cardiomegaly is apparent as the heart occupies >50% of the transverse diameter of the chest.  

 

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