title: Mass lesions in the spinal canal.
mesh_terms: D001254:Astrocytoma / Q000000981:diagnostic imaging; D002555:Cerebrospinal Fluid; D003287:Contrast Media; D004806:Ependymoma / Q000000981:diagnostic imaging; D005910:Glioma / Q000000981:diagnostic imaging; D006394:Hemangiosarcoma / Q000000981:diagnostic imaging; D006801:Humans; D008579:Meningioma / Q000000981:diagnostic imaging; D008722:Methods; D009192:Myelography; D009837:Oligodendroglioma / Q000000981:diagnostic imaging; D013115:Spinal Canal / Q000000981:diagnostic imaging*; D013120:Spinal Cord Neoplasms / Q000000981:diagnostic imaging*
chemical_list: D003287:Contrast Media