患者男，50岁，因“近4个月出现2次肉眼血尿”来诊。既往身体健康。肾CT：右肾实质及右肾静脉有实质性占位。诊断：右肾癌合并右肾静脉癌栓。
以下属于Ⅲ级瘤栓的有（提示肾细胞癌（RCC）倾向于肾静脉系统管腔生长，形成静脉瘤栓，根据瘤栓侵及范围将静脉瘤栓分为5级。）（）
A.瘤栓局限在肾静脉内
B.瘤栓侵入下腔静脉内，瘤栓顶端距肾静脉开口处距离≤2cm
C.瘤栓侵入肝静脉水平以下的下腔静脉内，瘤栓顶端距肾静脉开口处距离＞2cm
D.瘤栓达到肝内水平但位于肝静脉以下
E.瘤栓达到肝静脉水平，未超出肝上缘；瘤栓超出肝上缘但位于横膈以下
F.瘤栓生长达肝内下腔静脉水平，膈肌以下
参考答案：D, E, F
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| In my dual (双重的) profession 1 an educator and health care provider,I have worked with many children infected with HIV. They have taught me so many things, but I have especially learned that great 2 can be found in the smallest individuals. Let me tell you about Tyler. Tyler was 3 infected with HIV；his mother was also infected. From the very beginning of his life, he was dependent on medications to 4 him to survive. When he was five, he had a tube inserted in a vein(静脉) in his chest. At times, he also needed extra oxygen to support his 5 . Tyler wasn't 6 to give up one single moment of his childhood to this deadly disease. It was not 7 to find him playing and racing around his backyard, wearing his medicineloaded backpack and 8 his tank of oxygen behind him in his little wagon (小手推车). All of us who knew Tyler were impressed by his pure 9 in being alive and the energy it gave him. Tyler's mom often 10 him by telling him that he moved so 11 she needed to dress him in red. That way,when she peered through the window to check on him playing in the yard,she could quickly 12 him. This deadly disease eventually 13 down Tyler. He grew quite ill and, unfortunately, 14 did his HIVinfected mother. When it became 15 that he wasn't going to survive, Tyler's mom talked to him about 16 . She comforted him by telling Tyler that she was dying too,and that she would be with him soon in heaven. A few days before his death,Tyler 17 to me to come to his hospital bed and 18 ,"I might die soon. I'm not 19 . When I die,please dress me in 20 . Mom promised she's coming to heaven, too. I'll be playing when she gets there, and I want to make sure she can find me." | ||||
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