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Figure 2: Pre operative Magnetic Resonance Imaging of posterior fossa with cervical spine revealed cystic expansion of neural canal with dilatation of cervical cord extending from C3 to C7. Mild abnormal T2 hyperintense cord signal is seen in cervical spinal cord superior and inferior to the cystic dilatation. Cerebellar tonsillar herniation upto C2 vertebral level can be appreciated

Figure 2: Pre operative Magnetic Resonance Imaging of posterior fossa with cervical spine revealed cystic expansion of neural canal with dilatation of cervical cord extending from C3 to C7. Mild abnormal T2 hyperintense cord signal is seen in cervical spinal cord superior and inferior to the cystic dilatation. Cerebellar tonsillar herniation upto C2 vertebral level can be appreciated