A Tricuspid Valve Mass Attached to Papillary Muscle

Abstract

BACKGROUND: Cardiac myxoma is the most common benign heart tumor which can arise in any ofthe cardiac chambers, valves or related great veins. Diagnosis of a myxoma arising from the tricuspidvalve apparatus is exceptional. We present a rare case of myxoma in a tricuspid valve attached topapillary muscle.CASE DETAILS: A 45-year-old man was referred to our center for the evaluation dyspnea and chestpain. During work-up by transthoracic echocardiography (TTE), a mass was found on the cordatendinea of the anterior papillary muscle of the tricuspid valve. Coronary angiography revealed normalcoronary artery. During open heart surgery, an oval and non-pedunculated mass was detected ontricuspid corda tendinea and resected. Pathological examination revealed the presence of a myxoma.CONCLUSION: This experience illustrates a rare case of myxoma which originated from tricuspidcorda tendinea, diagnosed by echocardiography, suggesting fibroelastoma. However, the mass was notclear enough but dyspnea and sign and symptom of probably embolization to lung urged us to treat itsurgically. No complications attributable to the mass developed in the postoperative course. In the firstyear of follow-up, non-recurrence of the mass was detected on TEE, and the patient was asymptomatic.