Q: While reviewing ECHO report of a patient, you see the word 'Cor triatriatum'. What does it mean?


Answer:  Know to physicians for 150 years, Cor triatriatum as name applied is a heart with 3 atria. It is a congenital anomaly in which either the left or right atrium is divided into 2 compartments by a membrane (or tissue fold).

If left atrium is involved it is called cor triatriatum sinistrum, and if right atrium is involved, it is called cor triatriatum dextrum.