[Solitary Cysticercus cellulosae racemosus in the fourth ventricle]

A case is reported where it was possible, by surgical intervention, to show a cysticercus in the fourth ventricle to be the cause of a serious increase in intracranial pressure. The difficulties of preoperative contrast diagnosis in the case of space occupying lesions in the rhomboid fossa are described with reference to this particular case. Also discussed is the increasing importance of cysticercosis in our latitudes.