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Asian J Neurosurg. 2019 Jan-Mar;14(1):329-331. doi: 10.4103/ajns.AJNS_225_18.

Subpial Cervical Subependymoma: Report of an Unusual Tumor with Review of Literature.

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1
Department of Neurosurgery, SGPGIMS, Lucknow, Uttar Pradesh, India.

Abstract

Subependymoma is rare benign neoplasm (World Health Organization Grade I) usually found in the 4th ventricle and lateral ventricles. They were first described by Boykin as a separate entity in 1954. Subependymoma constitutes only 1%-2% of spinal ependymal tumors. Majority of the spinal subependymoma is intramedullary, with a rare few reported in the extramedullary plane. Clinicoradiologically, subependymoma often mimic more frequent, aggressive tumors of the spine (astrocytoma and ependymoma) which makes them difficult to differentiate. In fact, the diagnosis of subependymoma comes as a histopathological surprise. Maximal safe resection holds the key to good postoperative outcome with a very limited role of adjuvant therapy. Complete excision of the tumor, though desirable, is not feasible in all cases. Owing to their rarity and lack of characteristic clinicoradiological features, there is limited information currently available regarding their preoperative diagnosis and "optimal" management strategy. In this case report, we are discussing a case of eccentric subpial cervical subependymoma discussing important differentiating radiological features, and surgical nuances with an attempt to define "optimal" management strategy.

KEYWORDS:

Bamboo leaf sign; cervical; subependymoma; subpial

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