红细胞抗体放散试验原理和临床意义?
关于精索静脉曲张,错误的是() ["A.左肾癌可能出现左侧精索静脉曲张","B.左侧精索静脉呈直角注入左肾静脉","C.精索静脉曲张常见于左侧,但静脉及其瓣膜均无病变","D.精索静脉曲张的常见症状是阴囊下坠感","E.精索静脉曲张平卧位时可消失"]
血型是否只指AB0血型?
男,2岁,阴囊囊性肿块,站立时明显增大,透光试验阳性,卧床时肿块缩小或消失,睾丸不能触及。应首先想到() ["A.睾丸鞘膜积液","B.精索鞘膜积液","C.交通性鞘膜积液","D.睾丸肿瘤","E.腹股沟斜疝"]
男,60岁,体查发现左精索静脉曲张,平卧时不消失,应考虑的诊断是() ["A.膀胱癌","B.输尿管癌","C.肾盂癌","D.肾癌","E.丝虫病"]
红细胞血型抗原可分为哪几类?