[Amnesia, confabulation and nonaphasic misnaming after left thalamic infarct].

A 72-year-old right handed woman developed amnesia, confabulation and abnormal (bizarre) verbal response after the left thalamic infarction. Clinical features including disorientation, euphoria and various kinds of paraphasia coincided in nonaphasic misnaming. MR images showed that lesions involved the genu of the internal capsule, the anteroventral nucleus, the lateroventral nucleus, intralaminar nuclei, the mamillothalamic tract and the region around the ventral thalamus.