title: Relative incidence of spinal canal tumors.
abstract: By a retrospective study, the relative incidence of various histopathological types of one hundred and seventy-nine biopsy proven tumors of the spinal canal from a general hospital in Iran is presented and compared with the statistics reported from several eastern countries and the west. Nerve sheath cell tumors are more frequent in the east especially in far eastern countries whereas meningiomas and neuroepithelial tumors have a lower percentage in most eastern reports. With the available data no conclusion can be drawn as to the geographic difference in the frequency of occurrence of other histopathological types appearing in the spinal canal; some statistical features in this latter group are pointed out.
authors.forename: M R
authors.initials: MR
authors.lastname: Ardehali
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D015994:Incidence; D007492:Iran / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009423:Nervous System Neoplasms / Q000453:epidemiology; D012189:Retrospective Studies; D013117:Spinal Cord Compression / Q000209:etiology; D013120:Spinal Cord Neoplasms / Q000150:complications / Q000453:epidemiology*; D013125:Spinal Neoplasms / Q000453:epidemiology