Objective: To evaluate the magnetic resonance imaging (MRI) features characterizing embryonal tumors in the spinal canal.
Methods: Retrospective analyses of the MR images were conducted in 6 patients with surgically and pathologically confirmed embryonal tumors in the spinal canal.
Results: Epidermoid cysts in 3 cases displayed a variety of non-characteristic signal intensity patterns on T1- and T2-weighted images (T1WI and T2WI). Lipomas in 2 cases showed high signal intensity on T1WI and attenuated to intermediate signal intensity on T2WI. An intramedullary neurenteric cyst in 1 case was illustrated as low signal intensity on T1WI and high signal intensity on T2WI.
Conclusion: The MRI presentation of embryonal tumors in the spinal canal with the exception of lipomas is devoid of typical features, and their MRI diagnosis should be complemented by history of developmental anomaly and pathological and etiological findings.
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