In peritumoural and tumoural cortex changes in NOS and CO activities suggest that the coupling between neuronal activity and blood flow is impaired in the damaged cerebral cortex, and that the increase in NOS activity may play a role in tumour vascularization and progression.
We report the case of a 65-year-old woman who developed symptoms of spinal cord compression due to a spinal meningioma after 10 years of treatment with hydroxyurea (1000 mg/day) for essential thrombocytemia. This case provides a paradigm for the occurrence of symptomatic meningioma in course of HU therapy.
A method for stainless steel wire mesh cranioplasty is described. The method has proved simple and quick. Cosmetic results have been very good and no complications have been observed so far. This method seems particularly suitable in very large skull defects. It seems to reduce the incidence of the major complications of the wire mesh cranioplasties, viz. lifting of the margins, depression of the prosthetic vault and electrolytic interference with the circulating fluids.
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