In the adult, cor triatriatum is frequently an isolated finding.

In cor triatriatum there is a small extra chamber above the left atrium of the heart.

Cor triatriatum may also be an incidental finding when it is nonobstructive.

This type of abnormality may be confused with cor triatriatum dexter.

Cor triatriatum may eventually lead to features of congestive heart failure and obstruction over time.

Subtotal cor triatriatum with left partial anomalous pulmonary venous return.

Diagnostic features and pitfalls in the two-dimensional echocardiographic evaluation of a child with cor triatriatum.

Cor triatriatum in the adult.

Cor triatriatum (subdivided left atrium).

Cor triatriatum dextrum is extremely rare and results from the complete persistence of the right sinus valve of the embryonic heart.

Niwayama G. Cor triatriatum.

Cor triatriatum represents 0.1% of all congenital cardiac malformations and may be associated with other cardiac defects in as many as 50% of cases.

Cor Triatriatum Sinistrum Triatrial Heart None Cor triatriatum is an extremely rare congenital (present at birth) heart defect.