1病例资料患者,男,49岁,既往体健。因“咳嗽、乏力8d,发热伴颜面部、双下肢水肿2d”于2013年8月9日入院。体检:体温38.5℃,全身皮肤黏膜未见出血点及瘀斑,各浅表淋巴结未触及肿大,颜面部水肿,睑结膜略苍白,巩膜无黄染,鼻塞,口腔上腭可见白斑,咽部充血,扁桃体无肿大。胸骨无压痛,心、肺、腹未查及阳性体征。双下肢水肿。血常规 1 case data patients, male, 49 years old, past physical health. Due to “cough, fatigue 8d, fever with facial, bilateral lower extremity edema 2d ” was admitted on August 9, 2013. Physical examination: body temperature 38.5 ℃, systemic skin and mucous membrane no bleeding and ecchymosis, the superficial lymph nodes without swelling, facial edema, palpebral conjunctiva slightly pale, scleral no yellow dye, nasal congestion, oral palate shows white, pharyngeal Congestive, tonsil without swelling. Sternal no tenderness, heart, lung, abdomen did not check and positive signs. Lower extremity edema. Blood routine