title: Histiocytosis X of the cauda equina.
abstract: Laminectomy, performed on a 46-year-old woman because of weakness and paresthesias of the lower limbs, showed multiple discrete yellow nodules on the nerve roots of the cauda equina. One of these lesions was excised and proved to be a granuloma consistent with the diagnosis of histiocytosis X.
mesh_terms: D002420:Cauda Equina / Q000473:pathology*; D005260:Female; D006099:Granuloma / Q000473:pathology; D006646:Histiocytosis, Langerhans-Cell / Q000473:pathology*; D006801:Humans; D008875:Middle Aged