We describe the case of a 54-year-old man with no symptoms of a cardiac disease who, in the preoperative assessment for eye surgery was diagnosed to have a left atrial myxoma coupled with coronary artery disease. After thorough investigations, the patient underwent resection of the left atrial tumor and coronary artery bypass grafting with a succesful outcome. The histopathological examination revealed a myxoma. This case report highlights the importance of preoperative evaluation in patients with unsuspected coexisting cardiac diseases, treatment options and the anesthetic concerns.