[Sciatica due to chronic spontaneous lumbar epidural haematoma. Report of a case simulating a protruded disk syndrome (author's transl)].

A case of spontaneous chronic lumbar epidural hematoma, in a 70-year-old woman is reported. The clinical, roentgenographic and anatomic findings of this case and of six others found in the available literature are studied. This clinical entity occurs in elderly and must be considered in the differential diagnosis of protruded disk syndromes.