title: A case of right atrial mobile thrombus complicating multiple pulmonary emboli.
abstract: Right atrial thrombi are usually immobile. However, a mobile type mimicking a cardiac tumor, especially myxoma, has been described on rare occasions. We report here a case of atrial thrombus which was mobile in the cardiac chambers. A 29-year-old male was admitted because of exertional dyspnea. On admission, his echocardiogram showed an abnormal mass in the right atrium with a stalk attached to the interatrial septum. It decreased in size on the next day. On the fourth day of admission, it moved to the right ventricle. Multiple pulmonary emboli were revealed by the lung perfusion scintigram. Two days after the administration of intravenous urokinase, the abnormal mass in the cardiac chambers was no longer seen on the echocardiogram. This was a rare case of mobile atrial thrombus associated with multiple pulmonary emboli. Thrombolytic therapy appeared to be effective in this case.
authors.affiliation: Division of Cardiology, Showa University Fujigaoka Hospital, Yokohama, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Kasama
authors.forename: M
authors.initials: M
authors.lastname: Nakayama
authors.forename: K
authors.initials: K
authors.lastname: Shimizu
authors.forename: Y
authors.initials: Y
authors.lastname: Higashi
authors.forename: J
authors.initials: J
authors.lastname: Nagashima
authors.forename: H
authors.initials: H
authors.lastname: Tsunakawa
authors.forename: H
authors.initials: H
authors.lastname: Osada
authors.forename: S
authors.initials: S
authors.lastname: Mashima
mesh_terms: D000328:Adult; D006325:Heart Atria; D006331:Heart Diseases / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology*; D006801:Humans; D008297:Male; D011655:Pulmonary Embolism / Q000150:complications* / Q000175:diagnosis / Q000188:drug therapy; D015912:Thrombolytic Therapy; D013927:Thrombosis / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology*; D014568:Urokinase-Type Plasminogen Activator / Q000008:administration & dosage
chemical_list: D014568:Urokinase-Type Plasminogen Activator