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Arachnoid cyst of the craniocervical junction: case report
S J Price1, K M David, D G O'Donovan
1Department of Neurosurgery, Oldchurch Hospital, Romford, Essex, England. sjp58@medschl.cam.ac.uk
Objective And Importance:
An arachnoid cyst at the craniocervical junction presenting with obstructive hydrocephalus as a result of blockage of the outflow of the fourth ventricle is described. This is a very rare anatomic site, with only five other cases described in the literature.
Clinical Presentation:
A 37-year-old woman presented with a 9-month history of severe neck pain, persistent vomiting, visual disturbances, and numbness of the nose, cheek, and lips. She had severe bilateral papilledema on ophthalmoscopy. Magnetic resonance imaging revealed a midline cystic lesion extending down to C2.
Intervention:
The patient underwent posterior fossa craniectomy and excision of the arachnoid cyst. She made a full recovery and was asymptomatic at follow-up examination.
Conclusion:
The symptomatology of these rare craniocervical arachnoid cysts and their development are discussed.
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