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[Lipomatous hypertrophy of the interauricular septum as a cause of cerebral embolism in a patient with isolated Wernicke's aphasia].

The clinical observation of a 74 year old male presenting isolated Wernicke's aphasia due to a temporal left infarction of cardiac embolic origin secondary to paroxysmal auricular flutter is described. Transthoracic and transesophageal echocardiography, computerized tomography and magnetic resonance provided characteristic images which permitted the establishment of the diagnosis of lipomatous hypertrophy of the interauricular septum without requiring the use of invasive techniques. Lipomatous hypertrophy of the interauricular septum is a cardiac tumor of unusual presentation constituted of an abnormal accumulation of non-encapsulated fatty tissue which occupies a thickness greater than 15 mm of the interauricular septum. Wernicke's aphasia as a form of presentation of the lipomatous hypertrophy of the interauricular septum has not previously been described in the literature.