Metastatic carcinoma to artero-venous haemangioma. Case report.

A case of metastasis of primary lung-carcinoma to a cerebral artero-venous haemangioma is presented. Although the phenomenon of metastasis to primary brain neoplasm is being recognised with increasing frequency, we've found only two cases into vascular tumours reported. The authors emphasize the rarity of this occurrence and discuss the possible pathogenetic mechanisms, which are at present incompletely understood.

A neurophysiological study on the P300 component of event-related potentials in Hakim-Adams syndrome.

We have explored the variability of P300 event-related potentials in patients affected by Hakim-Adams syndrome, with raised or intermittent intracranial pressure, treated with surgical cerebrospinal fluid shunting. The clinical utility of P300 is confirmed in the light of the improvement of neurophysiological data after the surgical procedure, parallel with amelioration of neuropsychological performances.

Rhabdomyolysis and operating position.

Rhabdomyolysis during routine surgery was studied in three groups of patients who had surgery, with limited trauma to muscle, in the lateral and supine positions, and prone on the spinal frame. A range of blood tests was performed (before surgery, and on the first, third and seventh day after operation). These showed that a creatine kinase increase in the 24 hours and the early appearance of myoglobin in the serum were the best indicators.

Asymptomatic extradural haematomas. Results of a multicenter study of 158 cases in minor head injury.

The authors report a study conducted in three Italian neurosurgical centres on 158 patients admitted after a minor head injury and with CT findings of a hitherto asymptomatic significant extradural haematoma. All patients were examined both prospectively by means of a computerized record containing 18 clinical and radiological parameters, and retrospectively by logistical regression analysis, in order to ascertain which factors influenced most the choice of surgical vs. conservative management.