Left ventricular pseudotendinous cord is a congenital anatomical variant in which the left ventricle has a fibrous cord structure other than the normal tendon cords connecting the papillary muscles and the left atrioventricular valve leaflets. Pseudotendinous cords of the left ventricle have been found in the past due to autopsy, etc. In recent years, with the development of technology such as echocardiography, pseudotendinous cords of the left ventricle can also be found in two-dimensional echocardiography. LV pseudotendon cords may cause disturbances in myocardial electrical activity, resulting in a high incidence of premature ventricular contractions. In addition, some patients with LV pseudotendonus may present with chest tightness, chest pain, and palpitations, which need to be differentiated from other organic diseases after various tests.