title: Computed tomographic metrizamide myelography in syringohydromyelia.
abstract: Four patients with surgically verified syringohydromyelia, including 2 with and 2 without a collapsing cord, were examined with computed tomographic metrizamide myelography (CTMM). When the cord is collapsed, or a contrast-containing cyst is observed on the scan, no further examination is necessary. If the cord is not collapsed, it is difficult to differentiate an intramedullary cyst from a tumor. Flattening of the ventral border of the cord in the supine position, coupled with an increased transverse diameter and alteration of the normally smooth, oval shape are suggestive of syringohydromyelia.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008793:Metrizamide; D009192:Myelography; D013595:Syringomyelia / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed
chemical_list: D008793:Metrizamide