Korean J Med.  2010 Jan;78(1):104-108.

A large left atrial myxoma with a feeding vessel from the right coronary artery

• Kim HK
• Lee DH
• Gweon TG
• Song MA
• Baeg MK
• Kim JH
• Jeon HK

Abstract

A 55-year-old woman was referred to our hospital with a 6-month history of dyspnea (NYHA II-III). The physical examination revealed a grade 2/6 "tumor plop," i.e., a low-pitched sound heard during early or mid-diastole. The chest X-ray showed mild cardiomegaly with lung congestion in both lower lung fields. Two-dimensional echocardiogram showed a large myocardial mass, prolapsing into the left ventricle during diastole. Chest computed tomography showed a multi-lobulated mass (6.8x4.1 cm) attached to the interatrial septum during systole and prolapsing into the left ventricle during diastole. Coronary angiography demonstrated large tumor vessels arising from and surrounding the posterior lateral branch of the right coronary artery. The mass was excised and the patient recovered uneventfully.

Keyword

Myxoma; Coronary angiography; Left atrium

MeSH Terms

Cardiomegaly
Coronary Angiography
Coronary Vessels
Diastole
Dyspnea
Estrogens, Conjugated (USP)
Female
Glycosaminoglycans
Heart Atria
Heart Ventricles
Humans
Lung
Middle Aged
Myxoma
Physical Examination
Systole
Thorax
Estrogens, Conjugated (USP)
Glycosaminoglycans