女，35岁，四个月来，胸背部麻木，逐渐发展至双足部，两月来，双下肢无力，小便不易解出。体检：双下肢肌张力增高，跟膝反射亢进，双侧巴氏征(+)，胸10以下针刺觉减退。诊断考虑
A．脊柱结核
B．硬膜外转移性肿瘤
C．脊髓内占位病变
D．脊髓外硬膜下神经纤维瘤
E．脊髓出血
参考答案：C
解析：[解题思路] 本例缓慢发生截瘫，可排除脊柱结核、脊髓出血、硬膜外转移性肿瘤等，由于其感觉障碍从胸背部麻木，逐渐向下发展至双足部，提示脊髓内占位病变，正确答案应为C。
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| I sat down to read under an old tree in the park. I felt my life was _ 1__, for my whole world was dark. A young boy ran up to me, out of _ 2___. He stopped right before me and said __ 3___, “ Look what I found!” In his hand was a flower, and what a poor sight! The flower was dry and _ 4___. I gave him a small smile and then turned my eyes away so that he could take his dry flower and go off to play. 5___, he sat next to my side and placed the flower to his 6____ and said in surprise, “ It smells sweet and it’s beautiful, too. That’s _ 7____ I picked it. Here, it’s for you.” The flower before me was dead. But I knew I must __ 8___ it, or he might never leave. So I accepted the flower, and replied, “ This is just what I _ 9___.” Just then, for the first time I noticed that the boy could not _10____--- he was blind. Tears came down from my face as I _ 11____ him for picking the best one. “ You are welcome,” he smiled, and then ran off to _ 12____. I sat there and wondered how he knew about my pain. Though the eyes of a blind child, _ 13_ _ I could see the problem was not with the world; the problem was me. And for all those years I myself had been _ 14_ _. I decided to see the beauty in life, and 15 _every second. And then I held that dry flower up to my nose and breathed in the smell of a beautiful rose. | ||||
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