Five cases of the tumor showed anaplasia in various degrees, and three cases had local invasion.
其中5例肿瘤有不同程度的间变,3例肿瘤呈浸润性生长;
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Anaplasia type has been proven to be of prognostic value and is associated with poor prognosis.
现已证实,间变型是独立的预后因素,预示预后不良。
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镜下具有类似于动脉瘤样骨囊肿的结构,细胞学表现明显的多形性、异型性及间变,并见小灶性肿瘤性新生骨;
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在临床工作中,通常将WHO分级Ⅲ、Ⅳ级的胶质瘤称为恶性胶质瘤,主要为间变性星形细胞瘤和胶质母细胞瘤。
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