TEMI secondary to atrial mixoma of unusual morphology.

Abstract

We present echocardiographic images of an atrial myxoma with a rare location and morphology. This is a clinical case of a woman who begins with symptoms of chest pain, diagnosed with STEMI. Coronary angiography shows coronary arteries without lesions. Echocardiography shows a staghorn, sessile and mobile image, with a differential diagnosis of tumor or thrombus.

In transesophagic echocardiographic, the mass implants sessilely in the postero-superior wall of the atrium, close to the mouth of the left pulmonary veins. It has a very irregular, staghorn surface, with multiple long and mobile pedicles, reaching the mitral annulus in diastole, without causing obstruction or insufficiency. The drainage flow from the pulmonary veins was normal.

She is scheduled for surgical intervention, which proceeds without complications and finally the pathological diagnosis of atrial myxoma is obtained.