Cardiac myxoma
Cardiac myxoma
Updated: 10/22/2020
© Jun Wang,
MD, PhD
General features
- Most common primary heart tumor
- Sporadic (majority) or familial (Carney syndrome)
- 90% occur in atria, 80% on left side
- More common in women
- Mean age 50 years
Clinical presentations
- Most commonly in left atrium, followed by right atrium (Typically in fossa ovalis)
- Myxoma triad:
Intracardiac flow obstruction: left-side
heart failure or syncope, etc
Embolic phenomena
Constitutional symptoms: weight loss, fever, etd
Key morphological features
- Solitary tumor with gelatinous consistency
- Surface thrombus common
- Cytologically bland mesenchymal cells
- Myxoid stroma with delicate vascular channels
Diagnosis
- Imaging studies: Transthoracic echocardiography (TTE), transesophageal echocardiography (TEE)
- If familial, may screening family members, molecular tests for PRKAR1A mutation
Treatment
- Excision
Prognosis
- Recurrence seen in Carney complex or incomplete excision
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