Surgical removal of an intramedullary haematoma simulating Wallenberg's syndrome

This is the report of a young man who presented with was little change in the other neurological signs and the signs and symptoms of the Wallenberg syndrome.symptoms.Six weeks from admission the patient still After pneumoencephalographic studies a defect was experienced episodes of lethargy, nausea, and vomiting.seen in the fourth ventricle and at operation an Because of the persistence of the latter symptoms a intramedullary haematoma was discovered and pneumoencephalogram was recommended, although it evacuated.was still felt that a lateral medullary infarction was the most probable diagnosis.