PP-071 RIGHT ATRIAL MASS AFTER SURGICAL REPAIR OF ATRIAL SEPTAL DEFECT: THROMBUS MASQUERADING AS A MYXOMA

PP-070 LEFT COMMON PULMONARY VENOUS OSTIUM MIMICKING LEFT ATRIAL APPENDAGE ANEURYSM: ECHOCARDIOGRAPHIC MISDIAGNOSIS U.C. Yuksel, E. Yalcinkaya, E. Yildirim, T. Celik, U. Bozlar, M. Celik, Y. Gokoglan, B. Bugan, S. Firtina, A. Iyisoy, H.K. Kabul. Department of Cardiology, Gulhane Military Medical Academy, Ankara, Turkey; Department of Radiology, Gulhane Military Medical Academy, Ankara, Turkey; Department of Cardiology, Malatya Army Hospital, Malatya, Turkey; Department of Cardiology, Erzincan Army Hospital, Erzincan, Turkey Objective: The two most common pulmonary venous (PV) anomalies are the presence of aright middle PV and common left trunk. Herein, we report a patient with left common pulmonary venous ostium misdiagnosed as left atrial appendage aneurysm on echocardiography. Methods: A 67-year-old female with a medical history of hypertension admitted to our outpatient department for palpitation and dyspnea on exercise. She was advised to undergo routine echocardiography, which showed dilated left ventricle, decreased left ventricular ejection fraction (25%), moderate mitral regurgitation and left atrial appendage aneurysm. She was referred to cardiac computed tomographic angiography (CTA) for delineating anatomy. Results: CTA revealed an unusual pulmonary venous anomaly consisting of a left-sided common and unusually large ostium of left pulmonary veins draining to left atrium and normal coronaries. Conclusion: Cardiac anatomic variants has become increasingly important as the number of radiofrequency ablations has increased. The definite differentiation of pulmonary common ostium from an atrial appendage aneurysm could be made with transesophageal echocardiography, computed tomography and magnetic resonance imaging.