Open AccessGiant posterior fossa arachnoid cyst causing tonsillar herniation and cervical syringomyelia
Author(s) -
Vijay P. Joshi,
Ashwin Valsangkar,
Satish Nivargi,
Nitant Vora,
Anish Dekhne,
Amit Agrawal
Publication year - 2013
Publication title -
journal of craniovertebral junction and spine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.38
H-Index - 23
eISSN - 0976-9285
pISSN - 0974-8237
DOI - 10.4103/0974-8237.121627
Subject(s) - syringomyelia , medicine , arachnoid cyst , syrinx (medicine) , posterior fossa , cerebrospinal fluid , spinal cord , magnetic resonance imaging , chiari malformation , posterior cranial fossa , cyst , surgery , radiology , pathology , psychiatry
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.