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Table 1 Description of neural abnormalities detected on preoperative MRI evaluation

From: The prevalence of intraspinal anomalies in infantile and juvenile patients with “presumed idiopathic” scoliosis: a MRI-based analysis of 504 patients

Type of neural abnormality Number of cases (%)
Isolated Arnold-Chiari malformation 43 (45.7 %)
Arnold-Chiari malformation combined with syringomyelia 18 (19.1 %)
Isolated syringomyelia 13 (13.8 %)
Tethered cord combined with diastematomyelia 6 (6.4 %)
Diastematomyelia 6 (6.4 %)
Tethered cord 4 (4.3 %)
Intrinsic spinal cord tumor 3 (3.2 %)
Syringomyelia combined with tethered cord and tumor 1 (1.1 %)
Total number 94