Acute transverse myelitis, a possible vascular etiology.

Seven acute transverse myelitis patients are presented, in whom the course of illness suggests a vascular pathogenesis. In the absence of predisposing risk factors for vascular accidents and such systemic symptoms as occur frequently in vasculitic syndromes, association in hypothesized with isolated angiitis of the central nervous system. Combined treatment with corticosteroids and cyclophosphamide is, therefore, suggested for severe cases of acute transverse myelitis, in whom no etiology can be found.