1病例资料女,36岁。因间断乏力、胸闷、气短10年,加重1周入院。10年前在天津血液病研究所明确诊断为纯红细胞再生障碍性贫血(PRCA),此后间断服用环孢素、司坦唑醇、叶酸等药物治疗。本次入院后查血白细胞4·3×109/L,红细胞1·3×1012/L,血红蛋白51 g/L,血小板273×109/L。胸部 1 case information Female, 36 years old. Due to intermittent fatigue, chest tightness, shortness of breath for 10 years, increased 1 week admission. 10 years ago in Tianjin Institute of Hematology, a clear diagnosis of pure red cell aplasia (PRCA), then discontinuous taking cyclosporine, stanozolol, folic acid and other drugs. After this admission, white blood cells were collected, which were 4.3 × 109 / L, 1.3 × 1012 / L of erythrocytes, 51 g / L of hemoglobin and 273 × 109 / L of platelets. chest