Cardiac tumors natural history


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Prognosis
The vast majority of the tumors of the heart have a benign course and are not directly fatal. However, even the benign tumors of the heart can be lethal due to either direct extension into the electrical conduction system of the heart (causing complete heart block or a fatal dysrhythmia), or due to emboli from the tumor mass that may have lethal sequelae.

The malignant tumors of the heart have a worse prognosis. Cardiac sarcomas generally lead to death within 2 years of diagnosis, due to rapid infiltration of the myocardium of the heart and obstruction of the normal flow of blood within the heart.