Cardiac Myxoma Originating from the Anterior Mitral Leaflet

Abstract

SUMMARYCardiac myxoma arising from the anterior mitral leaflet is extremely rare. A 47-yearold Taiwanese male was found to have a 5 × 4 × 3 cm myxoma originating from the atrial side of the anterior mitral leaflet using transesophageal echocardiography. The tumor was successfully treated by surgical excision. The resected tumor was a well-defined encapsulated mass with a broad-base stalk arising from the anterior mitral leaflet. To detect the early recurrence, a semiannual follow-up examination using transesophageal echocardiography is needed. (Jpn Heart J 2003; 44: 429-434) Key words: Cardiac tumor, Mitral valve, Transesophageal echocardiography PRIMARY cardiac tumors are uncommon and their autopsy incidence has been calculated to be between 0.0017% and 0.33%. About 50% of these tumors are myxoma which usually arise from the interatrial septum. 1) We report here an extremely rare case of myxoma originating from the anterior mitral leaflet, which was diagnosed and located using transesophageal echocardiography (TEE). CASE REPORTA 47-year-old male Taiwanese patient was referred to our hospital for the evaluation of intermittent attacks of shortness of breath and palpitations. These symptoms had appeared 1 year previously and were not associated with physical activity, while the severity and frequency of these symptoms worsened in the previous 3 months.His height was 170 cm, body weight 68 kg, blood pressure 114/80 mmHg, pulse rate 90 beats per minute without deficit, respiratory rate 22 per minute, and body temperature 36.2°C. Auscultation revealed a pan-systolic murmur (II/VI) at the apex, a rumble murmur in diastolic phase, and moist rales heard in the inspiraFrom the

Surgical treatment of primary intracardiac myxoma: 19 years of experience

“…Recurrence may occur within a few months to several years after the initial surgical excision and most are found during the first four years [12]. Incomplete resection, intraoperative displacement, embolization, and multifocal genesis have been proposed as possible explanations.…”

The Value of Multi-slice CT Imaging in Cardiac Myxomas in Comparison with Follow-Up Screening in Thoracoscopic Surgery

“…Previous studies indicate that CMs mainly occur in the left atrial, accounting for about 75 to 83 % patients. 15-20 % patients have CMs in their right atrium, and only 3-4 % patients have CMs in their ventricle [12]. According to a study in 67 patients [13], CMs occur more frequently in the right atrium compared with the left ventricular.…”

Outcomes of multiple myxoma resections with carney complex

“…Congestive heart failure (68%) and cerebral strokes (27%) are commonly associated with presenting symptoms. [10,11] The mass effect of the myxoma causes obstruction through the heart valve in addition to turbulent blood flow. While the obstructive capabilities are commonly presented as syncope, the turbulence in blood flow contributes to the formation of thromboembolic formation via the principles of Virchow's triad.…”