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Journal of Korean Neurosurgical Society 1999;28(12): 1727-1731.
Encapsulated Choroid Plexus Papilloma with Surrounding Large Cyst.
Kang Ho Beak, Tae Young Kim, Jong Moon Kim
Department of Neurosurgery, School of Medicine, Wonkwang University, Iksan, Korea.
The case of a 6-month-old male infant with a choroid plexus papilloma showing unusual features is presented. This case is very unusual because the tumor did not have any connection with the choroid plexus but was attached to the normal brain parenchyme, encapsulated with thick hyalinized membrane and surrounded with large multi-septated cyst. At the surgery, it was confirmed that the tumor was in fact located at the right temporal lobe without having any connection to the normal choroid plexus and surrounding cyst was not lateral ventricle. Histopathological examination revealed a choroid plexus papilloma. We present this unusual case of choroid plexus papilloma with review of literature. Also, the pathogenesis of the tumor capsule and surrounding cyst is discussed.
Key Words: Choroid plexus papilloma; Ectopic; Large multi-septated cyst; Encapsulation; Hyalinized membrane
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