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KMID : 1141120220080020112
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The Nerve
2022 Volume.8 No. 2 p.112 ~ p.116
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Neuroendoscopic Fenestration of Quadrigeminal Cistern Arachnoid Cyst Presenting with Developmental Regression
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Kim Sang-Hoon
Kim Ki-Hong
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Abstract
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Quadrigeminal cistern arachnoid cyst is rare and not usually located in the tectal plate region. Such a cyst may extend to the surrounding area and compress adjacent structures due to cystic expansion. Arachnoid cysts occasionally are associated with hydrocephalus and produce related symptoms. In our case, a 20-month-old boy presented with developmental regression and macrocephaly. Image study of the brain demonstrated a large cyst on the superior portion of the posterior fossa with extension to the supratentorial space and a compressed cerebellum inferiorly and brain stem anteriorly. Lateral and third ventricles were enlarged severely. We performed lateral ventriculo-cystostomy by neuroendoscope via a precoronal approach. Additional third ventriculostomy was performed on the floor of the third ventricle. At 9 months after surgery, the patient showed restored development, and postoperative image showed a reduction of arachnoid cysts and lateral and third ventricles.
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KEYWORD
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Arachnoid cysts, Cystostomy, Endoscopy, Ventriculostomy
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