[Clinicopathologic study of XXXX ].

@entity1 @entity5473 @entity1313 @entity5 @entity391 @entity4494 @entity18871 @entity2916 @entity816 @entity1758 @entity10
OBJECTIVE: To study the clinicopathologic features of @entity816 . METHODS: The clinical and pathologic characteristics of 18 cases of @entity816 were retrospectively analyzed. RESULTS: Amongst the 18 cases studied, there was a male predominance (male-to-female ratio = 2:1). The age of @entity1 ranged from 7 to 54 years (mean age = 18.2 years). The @entity5 often occurred in the lateral ventricles (16/18, 88.9%). Most @entity1 presented with @entity10 and @entity391 (11/18, 61.1%), followed by visual disturbance (3/18, 16.7%). Eleven @entity1 (61.1%) had clinical features of @entity2916 , usually in the form of @entity18871 (8/18, 44.4%). Computerized tomography was performed in 10 cases, in which 7 cases were of high density and 5 cases showed contrast enhancement. MRI revealed isointense mass lesion on T1WI (7/11, 63.6%), highly intense lesion on T2WI (10/11, 90.9%) and contrast enhancement in some cases (9/11, 81.8%). Four @entity1 had follow-up information available and all of them were alive from 1 to 5 years (mean = 3.5 years). Histologically, there were bundles of spindle cells mixed with clusters of gemistocytes and @entity4494 -like cells. The spindle cells showed immunoreactivity for glial fibrillary acidic protein (18/18, 100%), while the gemistocytes and @entity4494 -like cells expressed @entity5473 (14/18, 77.8%). Most of the cases (16/18, 88.9%) had @entity1758 index <or= 1%. CONCLUSIONS: @entity816 is a benign @entity1313 with distinctive histopathologic features. The @entity5 typically affects @entity1 and young adults. It is associated with a favorable clinical outcome, especially if completely excised.
