Accessory Mitral Valve Tissue, a Rare Congenital Mal Formation

Accessory mitral valve Tissue is a rare congenital malformation that has been reported in the literature in approximately 130 cases. It can be Found Isolated or in combination with other cardiac Anomalies and is usually detected in nearly childhood. It is in differential diagnosis with other cardiac masses as tumors or vegetations. We describe the case of a 27 years old, Asymptomatic Female who was referred to our hospital For the evaluation of cardiac mass. Transthoracic and then tranesophageal echocardiography showed that mass in LVOT is a membranous type of accessory mitral valve tissue without obstruction in LVOT. Echocardiography is highly mandatory in differential diagnosis and planning for surgery or medical follow up in these rare patients.