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Journal of Craniovertebral Junction and Spine
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CASE REPORT
Year : 2013  |  Volume : 4  |  Issue : 1  |  Page : 43-45

Giant posterior fossa arachnoid cyst causing tonsillar herniation and cervical syringomyelia


1 Department of Neurosurgery, Anesthesia and Pathology, SP Institute of Neurosciences, Solapur, Maharashtra, India
2 Department of Neurology, Anesthesia and Pathology, SP Institute of Neurosciences, Solapur, Maharashtra, India
3 Department of Pathology, Yashodhara Super Speciality Hospital, Solapur, Maharashtra, India
4 Department of Neurosurgery, Narayana Medical College and Hospital, Chinthareddypalem, Nellore, Andhra Pradesh, India

Correspondence Address:
Amit Agrawal
Department of Neurosurgery, Narayana Medical College & Hospital, Chinthareddypalem, Nellore - 524 003, Andhra Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0974-8237.121627

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Acquired cerebellar tonsillar herniation and syringomyelia associated with posterior fossa mass lesions is an exception rather than the rule. In the present article, we describe the neuroimaging findings in a case of 28-year-old female patient presented with a history of paraesthesia involving right upper limb of 8-month duration. Magnetic resonance imaging showed a giant retrocerebellar arachnoid causing tonsillar herniation with cervical syringomyelia. The findings in the present case supports that the one of the primary mechanism for the development of syringomyelia may be the obstruction to the flow of cerebrospinal fluid causing alterations in the passage of extracellular fluid in the spinal cord and leading to syringomyelia.


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