[Right atrial myxoma - about a case revealed by a pseudopericarditic symptomatology (author's transl)].

The authors relate a case of right atrial myxoma, developing as an inflamatory pericarditis. They insist on the misleading aspect of these tumors, on the delay usually occuring before the diagnosis can be reached and on the notable contribution of echocardiography which should be considered as the main investigation in future and should doubtless be sufficient for the cardiac surgeon, while permitting to avoid furthermore invasive investigations (catheterization and angiography).