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1·Conclusions Infectious disease, collagen vascular disease and neoplasm were the major cause of FUO.

结论感染性疾病、缔组织病、性肿瘤是发热待查的主要原因。

2·Infectious diseases, collagen vascular disease and neoplasm are the major causes of FUO in children.

感染性疾病、结缔组织病和恶性肿瘤性疾病是该组FUO的主要原因。

3·A 54-year-old man presented with progressive dyspnea and non-productive cough. Drug toxicity, environmental exposure, and collagen vascular disease were ruled out.

男性，54岁，进行性呼吸困难、干咳。药物毒性，环境暴露，胶原血管疾病已经被排除。