老年男性患者顽固性背痛，放射至下肢，应先排除（）
A.强直性脊柱炎
B.腰肌劳损
C.感染性脊柱炎
D.前列腺癌脊椎转移
E.坐骨神经痛
参考答案：D
解析：强直性脊柱炎在青年男性多见；坐骨神经痛具有题目所示的临床表现，但并非首先需要排除者，而是一排除诊断。老年患者顽固性背痛、放射性神经痛，应首先排除脊椎肿瘤，特别是转移瘤（常见前列腺癌、乳腺癌、肺癌转移等）。
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| ( )1. Betty has a six-year-old daughter. She wants her to be a musician when she grows up, so she is looking for a famous music school for her. ( )2. Sara's son is 10 years old. He is interested in water sports. He said that he hoped to be a sailor in the future. ( )3. Alice learned to dance when she was young. Now she is a successful dancer. She wants her little daughter to follow her steps. ( )4. Mary is always worried about her daughter, who is poor at math and English at school, so she is looking for a training centre to help her daughter. ( )5. Gina has a son who is a football fan. He knows about almost all the well-known football players. He wishes to be a football star. | ||||||||||||
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