Plain film examination of the spinal canal.
D000130:Achondroplasia / Q000000981:diagnostic imaging; D001165:Arteriovenous Malformations / Q000000981:diagnostic imaging; D004392:Dwarfism / Q000000981:diagnostic imaging; D006801:Humans; D009192:Myelography; D013115:Spinal Canal / Q000000981:diagnostic imaging*; D013120:Spinal Cord Neoplasms / Q000000981:diagnostic imaging; D013122:Spinal Diseases / Q000000981:diagnostic imaging; D016135:Spinal Dysraphism / Q000000981:diagnostic imaging; D013125:Spinal Neoplasms / Q000000981:diagnostic imaging