卵巢肿瘤有几大类组织分型?
患者,男性,16岁,左胫骨干骺端有边缘不清的大片骨质破坏,其中可见斑片状密度增高影,局部骨皮质破坏,附近有三角形骨膜增生及软组织肿块,软组织肿块内可见针状、斑片状密度增高影,边界不清。应诊断为() ["转移瘤","混合型骨肉瘤","骨髓瘤","尤因肉瘤","恶性骨巨细胞瘤"]
HiCN的吸收波峰位于() ["504nm","572nm","540nm","578nm","634nm"]
15岁男孩,左肱骨上段疼痛。经X线摄片发现,左肱骨干骺端见偏心性吹气球样骨质膨胀性改变,未穿破骨皮质,病变周围可见有轻度骨质硬化。未见软组织肿块影。考虑为下列哪种疾病() ["巨细胞瘤","软骨瘤","骨样骨瘤","动脉瘤样骨囊肿","骨瘤"]
鼓帆征见于() ["二尖瓣脱垂","二尖瓣狭窄","大量心包积液","肥厚型心肌病","扩张型心肌病"]
简述宫颈癌手术治疗的适应证和原则。