2025-11-272025-11-27http://hdl.handle.net/2263/106717Clinical history : A 2 year old with ventricular heart failure and right ventricular complication with hepatomegaly.An AV communication was seen with a pulmonary to systemic flow of 4:1.Autopsy findings : 1. Atrial septal defect of the ostium premum type.2. Pronounced right ventricular hypertrophy and dilation.3. Congenital split in the mitral valve.Diagnosis: Atrial septal defect of the osteum primum type with innate split in the mitral valve