Myxoma natural history
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Natural History
Complications
- Arrhythmias
- Pulmonary edema
- Peripheral emboli
- Spread (metastasis) of the tumor
- Blockage of the mitral heart valve
Prognosis
Although a myxoma is not cancer, complications are common. Untreated, a myxoma can lead to an embolism (tumor cells breaking off and traveling with the bloodstream), which can block blood flow or cause the myxoma to grow in another part of the body. Myxoma fragments can move to the brain, eye, or limbs.
If the tumor grows inside the heart, it can block blood flow through the mitral valve and cause symptoms of mitral stenosis. This may require emergency surgery to prevent sudden death.