Ventricular system-unrelated cerebellar ependymoma: A case report

Table 1 Review the literature on ependymomas of cerebellar parenchyma in the past ten years

No.	Ref.	year	Age/sex	Location of the tumor	Diagnose	Therapy	Follow-up (months)
1	Losa et al[20]	2019	44/F	Cerebellomedulllary cistern and surrounding brain tissue	CCE (WHO II)	GTTR	NS
2	Zhang et al[21]	2017	62/F	Right cerebellum	TE + CCE (WHO II)	GTTR	9
3	Ebrahimi et al[8]	2020	36/F	Left cerebellopontine angle	PE (WHO II)	GTTR + AR	12
4	Lan et al[22]	2019	28/M	Left cerebellopontine angle	NS (WHO II)	GTTR + AR	24
5	Schild et al[23]	2017	78/F	Fourth ventricle and surrounding brain tissue	NS	GTTR	9
6	Gill et al[24]	2015	48/M	Right cerebellopontine angle	NS (WHO II)	GTTR	NS
7	O'Donnell et al[4]	2016	63/M	Right cerebellum	NS (WHO II)	NS	NS
8-10	Leng et al[25]	2016	NS	Cerebellar hemisphere	AE (NS)	NS	NS (mean, 8)

AE: Anaplastic ependymoma; AR: Adjuvant radiotherapy; CCE: Clear cell ependymoma; GTTR: Gross total tumor resection; TE: Tanycytic ependymoma; M: Male; F: Female; PE: Papillary ependy; NS: Not stated or not known; WHO: World Health Organization.