[Cerebral edema (author's transl)].

Edema of vascular origin, which occurs most frequently of all, is usually due to extensive lesions or traumata. It is the result of a change in vascular permeability and requires treatment with corticosteroids. Edema of cellular origin is characterized by swelling of the glia cells, the neurones and endothelial cells with subsequent reduction of the extracellular space. It is associated with hypo-osmolarity and hypoxia and essentially requires the treatment of the causal damage but also the principal general measures of osmotherapy. Interstitial edema is characterized by an increase in the fluid content in the periventricular extracellular space and is due to obstructive hydrocephalus. This form eventually requires neurosurgical treatment.