女患，73岁，因进行性心悸、气短14d入院。病来消瘦，纳差，无明显低热及盗汗，无咯血。既往史无特殊。体宣：T36．3℃，P114次／min，R24次／min，BP20／13kPa，慢性病容，浅表淋巴结不大，左侧胸部有大量胸水体征。辅查：血WBCS．8×109／L，N0．88，L0．12，Hb105g／L。胸片 Female, 73 years old, due to progressive heart palpitations, shortness of breath 14d admission. Disease to weight loss, anorexia, no obvious fever and night sweats, no hemoptysis. No previous history. Body declared: T36.3 ℃, P114 times / min, R24 times / min, BP20 / 13kPa, chronic disease, superficial lymph nodes is not large, a large number of left chest pleural fluid signs. Secondary investigation: blood WBCS. 8 × 109 / L, N0.88, L0.12, Hb105g / L. Chest radiograph