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KMID : 0378119740010010151
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Chungnam Medical Journal
1974 Volume.1 No. 1 p.151 ~ p.154
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Arachnoid Cyst in the Posterior Fossa
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Abstract
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Idiopathic benign arachnoid cyst occur less commonly within the posterior fossa. It seems probable that such cyst in the posterior fossa may also be developmental in origin.
In this paper, we present a case of arachnoid cyst in the posterior fossa. An 8 month old female baby was admitted to neurosurgical unit complaining of large head, vomiting, mental retardation and occasional fever. Examination showed Parinaud´s. syndrome and tense fantanell. Positive ventricurography revealed obstruction of aqueduct with dilatation of ventricles.
Posterior fossa exploration showed a cyst of about 4 cm in diameter. Partial removal of the cyst wall and the Tolkildsen´s procedure was performed.
Tissue examination identified the fibrous cyst wall with glial and ependymal tissue.
Postoperative course was uneventful and the pressure has relieved.
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