颅内多发性和／或混合性肿瘤从病理学角度，可以分成三种类型：单一细胞类型的多发肿瘤，如多发性脑膜瘤；细胞呈不同组织学结构但为同胚层起源的混合性肿瘤，如星形细胞瘤合并少技胶质细胞瘤；少见的是不同胚层起源的多发性肿瘤，如脑膜瘤伴发胶质瘤。在后一种情况中，颅内同 Intracranial multiple and / or mixed tumors can be classified histologically into three types: multiple tumors of a single cell type, such as multiple meningiomas; mixed tumors of different histological structures but of the origin of the homeoderm, Such as astrocytoma with less glioblastoma; rare is the germ derived from multiple germ tumors, such as meningioma with glioma. In the latter case, the same intracranial