Recently, the presence of left ventricular clefts has been identified frequently with the advancement of cardiac imaging modalities such as cardiac magnetic resonance imaging and computed tomography. Here we report a rare case of left ventricular cleft that was incidentally diagnosed with the ECG changes that imitated the presence of LMCA stenosis and diagnosed by transthoracic echocardiography in a patient with autosomal dominant polycytic kidney disease.“,”