WHO公布的骨肿瘤分类法将骨肿瘤分为________、________和________三类。
造影前不需做肠道清洁准备的是() ["A．静脉肾盂造影","B．膀胱造影","C．肝动脉造影","D．子宫输卵管造影","E．四肢静脉造影"]
手或腕腱鞘囊肿时最能肯定诊断的检查是() ["A．超声检查","B．X光平片","C．抽吸囊肿","D．CT","E．MRI"]
鹰嘴滑囊炎的常见病因是() ["A．血液透析","B．感染","C．肘部的一次直接打击","D．静脉内给药的误用","E．肘部直接受压的重复小创伤"]
骨肉瘤的临床表现有哪些?
试述骨巨细胞瘤的临床特点与治疗。
