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A report of an epidermoid caused by trauma. The traumatic genesis was conclusively demonstrated in the course of an almost uninterrupted 28-year observation. The differential diagnostic difficulties and the consequences following therefrom are emphasized.

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.

In three patients with cerebral ictal attacks, a diagnosis of a cerebral venous angioma was made, based on angiography, the symptoms and the clinical findings. All vascular malformations lay in the rostral cerebrum. In two patients, dilated medullary veins converge towards the origin of a dysplastic draining vein (type I), in the third case the medullary veins terminated in two veins of medium calibre which lead into a large venous drainage system (type II). In two of the three cases, there was calcification, one of these in a subeppendymal mass (? old haematoma). There was scintigraphic evidence of local disturbance of the bloodbrain barrier of Venous angiomas. The brain must be differentiated from other lesions, such as vascular gliomas and metastases.

In about one of every hundred patients with lumbar disc prolapse, one may expect to find a co-existant spinal tumour which may be the sole, or partial, cause of the symptoms. Lumbar myelography must therefore be performed in such a manner that the upper lumbar region, and if necessary the lower thoracic region, is adequately demonstrated.