[A case of right atrial myxoma, originating from the eustachian valve].

We describe a rate of right atrial myxoma, originating from the Eustachian valve, which entered and occupied the right ventricle during the diastolic phase. A 65-year-old woman was admitted with symptoms of palpitation and tachycardiac attack. The condition was diagnosed by echocardiogram and an emergency operation performed. The tumor was removed with the endocardium around 1 cm2 at its stalk in order to prevent recurrence of tumor. No recurrence has developed during the subsequent 2 years 4 months.