1病例报告患者男,28岁。因咳嗽、气短3个月余入院。查体:无贫血貌、皮肤未见出血点、颈部、腋下可触及直径约0·5 cm大小淋巴结,胸廓对称,左侧第5肋以下叩诊浊音,呼吸音低、腹软,肝、脾肋下未触及。实验室检查:白细胞计数12·1×109/L,分类淋巴细胞0·69,中性粒细胞0·25,血红 1 case report patient male, 28 years old. Due to cough, shortness of breath more than 3 months admitted to hospital. Check the body: no anemia, the skin no bleeding point, neck, armpits can reach the size of lymph nodes of about 0.5 cm in diameter, symmetry of the thorax, the left fifth of the following percussion dullness, low respiratory sounds, abdominal soft, Spleen ribs untouched. Laboratory tests: white blood cell count 12 · 1 × 109 / L, classification of lymphocytes 0 · 69, neutrophils 0 · 25, red