Right atrial mass: tumor or aneurysm?

摘要

Accurate diagnosis and the surgical therapy is challenging for a mediastinal growth. After coronary artery graft surgery in 1982 and coronary reoperation in 1992, a patient was admitted for right atrial tumor. Echocardiography and MRI scan did not reveal precise tumor delineation. Histological studies proved a saphenous vein graft aneurysm.Mediastinal and cardiac tumors are relatively uncommon and diagnosis is difficult. While metastases from carcinoma and lymphoma occur in 10-20%, primary cardiac tumors are found in only 0.2% [1]. Almost three-quarters are benign with a myxoma being diagnosed in up to 50% [1]. Angiosarcomas and rhabdomyosarcomas are common malignant tumors. True or false aneurysms following coronary artery bypass grafting (CABG) may rarely mimic a cardiac tumor [2].