Fig. 2From: Complete atrioventricular block as an initial manifestation of recurred oral cavity cancer: a case reportEchocardiography (a and b) and chest computed tomography (c) revealed about 4.0 × 2.0 cm-sized hypoechoic mass arising from the interventricular septum in the vicinity of AV node and protruding into the right ventricleBack to article page