Amnestic episode caused by thrombosis of internal cerebral veins

We report on a patient who suffered an acute‐onset amnestic syndrome without focal neurological deficits and recovered completely within a fortnight. His symptoms were caused by a bilateral paramedian thalamic venous infarction due to a thrombosis of the internal cerebral veins, which was confirmed by cerebral angiography. Thrombosis of the internal cerebral veins should always be suspected in patients presenting with a longer‐lasting amnestic syndrome without any other neurological symptoms. Furthermore, the prognosis of internal cerebral vein thrombosis is not always poor.