有关脂肪肉瘤的描述，错误的是() ["A．多由脂肪瘤恶变而来","B．好发于大腿、腹膜后等部位","C．多见于40岁以上的患者","D．肿瘤呈结节状或分叶状","E．常有假包膜"]
推拿按摩手法对颈椎病的治疗作用不包括() ["A．疏通脉络，减轻疼痛、麻木","B．增宽椎间隙","C．增宽椎间孔","D．改善关节活动度","E．增强肌力"]
虫蚀样空洞的壁是由什么组织形成() ["A．肿瘤组织","B．肉芽组织","C．纤维组织","D．坏死组织","E．薄层肺不张"]
PACS正确的涵义是() ["A．图像存储系统","B．图像传输系统","C．图像网络系统","D．图像通讯系统","E．图像存储与传输系统"]
混合型血管瘤的组织学特点是() ["A．由毛细血管构成","B．由血窦构成","C．由小静脉构成","D．由小动脉构成","E．由毛细血管和血窦构成"]
试述头部常见的几种放疗反应及其处理。
