[Clinical forms of Schilder's diffuse periaxial encephalitis and problems in its diagnosis].

The clinical picture of different forms of diffuse periaxial encephalitis (DPE)--encephalic, pseudotumorous and psychic--is described. The authors present criteria of the diagnosis of each of these forms and their differentiation from other clinically similar diseases (viral encephalitides, brain tumours and psychoses). They also outline the signs distinguishing DPE from multiple sclerosis and to a certain degree from leukodystrophies.

[Clinical picture and pathologic anatomy of diffuse periaxial encephalitis].

The data obtained by the authors refute the generally accepted opinion to the effect that Schilder's encephalitis is a very rare disease predominantly affecting children. Clinical and neurohistological examinations of 16 patients have made it possible to establish that demyelinization foci may affect all portions of the brain, being found, however, more commonly in the frontal and occipital lobes, basal ganglia and brain stem. The spinal cord is also frequently involved.

[Polyneuritis in periarteritis nodosa].

The authors observed 16 patients suffering from nodular periarteritis with the polyneuritis syndrome. The development and clinical characteristics of polyneuritis due to nodular periarteritis were studied, its course and outcome were also recorded. Some data helpful for recognizing the etiology of polyneuritis are presented.