Left atrial myxoma.
Although atrial tumors usually present with cardiac symptoms, myxomas may cause only nonspecific systemic symptoms early in their course, before they are large enough to have a hemodynamic effect. Two-dimensional echocardiography can be useful when diagnosing is problematic.
Tabbalat
R A
RA
Haft
J I
JI
D000328:Adult; D004452:Echocardiography; D005260:Female; D006325:Heart Atria; D006338:Heart Neoplasms / Q000175:diagnosis*; D006801:Humans; D009232:Myxoma / Q000175:diagnosis*