Cor triatriatum is a very rare cardiac malformation characterized by the presence of an abnormal interatrial membrane separating either the left or right atrial chamber into two compartments. It can be associated with other cardiac defects and is often symptomatic in childhood. The signs depend on the size and position of the interatrial membrane and other associated malformations. Here we report a case of right-sided cor triatriatum associated with an ostium primum-type interatrial septum defect and left-sided opening of the coronary sinus in a fetus. The cause of intrauterine death was asphyxia due to total placental abruption.

Department of Forensic Medicine Faculty of Medicine Pavol Jozef Šafárik University 041 80 Košice Slovakia

Department of Heart Surgery East Slovak Institute of Cardiovascular Disease 040 11 Košice Slovakia

Department of Pathology Louis Pasteur University Hospital 040 01 Košice Slovakia

Institute of Anatomy 1st Faculty of Medicine Charles University 128 00 Prague Czech Republic

Medico Legal and Pathological Anatomical Department of Health Care Surveillance Authority 043 74 Košice Slovakia

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