脑肿瘤分为良性和恶性两种,约各占一半。恶性肿瘤包括胶质瘤、转移瘤等;良性肿瘤包括脑膜瘤、垂体瘤、神经鞘瘤等。根据肿瘤的来源可以分为原发性和继发性两大类。脑肿瘤中发病率最高的是神经上皮肿瘤,又称胶质瘤,约占40%,其次是脑膜瘤和垂体瘤。尤其值得注意的是,脑转移瘤的发病率正在悄悄增加,有的地区统计发病率已经超过了垂体瘤。 Brain tumors are divided into two categories: benign and malignant. Malignant tumors include gliomas and metastases; benign tumors include meningiomas, pituitary tumors, and schwannomas. According to the origin of the tumor can be divided into two major categories of primary and secondary. The highest incidence of brain tumors is neuroepithelial tumors, also known as gliomas, accounting for about 40%, followed by meningioma and pituitary tumors. In particular, it is worth noting that the incidence of brain metastases is quietly increasing, and the statistical incidence in some regions has exceeded that of pituitary tumors.