biostudies-literatureUnknown11(12)Eftekhari MRWe report a 47-year-old man who presented with right-sided heart failure. Transthoracic echocardiography revealed a tunnel-shaped communication (ventricular septal defect) between the left ventricle and the right ventricle with a significant left-to-right shunt. The VSD is connected to the lateral wall of the right ventricle by a large tunnel.Clinical case reportse8017https://www.ebi.ac.uk/biostudies/studies/S-EPMC10697855biostudies-literatureCongenital tunnel-shaped ventricular septal defect.PMC10697855Eftekhari MRParkhideh RNakhaee AKhoshavi MfalseCongenital tunnel-shaped ventricular septal defect.We report a 47-year-old man who presented with right-sided heart failure. Transthoracic echocardiography revealed a tunnel-shaped communication (ventricular septal defect) between the left ventricle and the right ventricle with a significant left-to-right shunt. The VSD is connected to the lateral wall of the right ventricle by a large tunnel.2023-01-01T00:00:00Z2023 Dec2025-04-05T10:50:00.989Z2025-04-05T10:50:00.989ZS-EPMC106978553807601510.1002/ccr3.8017