患者女性,66岁。因乏力、纳差3个月,发现血肌酐升高1周入院。入院后胸部CT提示右侧大量胸腔积液,纵隔疝形成。遂行胸腔积液引流并送检淡黄色胸水100 ml做细胞病理学检查。病理检查细胞病理涂片,Diff-Quih染色。镜下见较多淋巴细胞,少量间皮细胞和中性粒细胞,少量散在及成团的细胞核增大,染色质粗,可见核仁,有较丰富的胞质,少量细胞胞 Patient female, 66 years old. Due to fatigue, anorexia for 3 months, found that serum creatinine increased 1 week admission. Post-chest CT prompts a large number of pleural effusion on the right side, mediastinal hernia formation. Perform pleural effusion drainage and submission of light yellow pleural effusion 100 ml to do cytopathology. Pathological examination of cytological smears, Diff-Quih staining. Microscope see more lymphocytes, a small amount of mesothelial cells and neutrophils, a small amount of scattered and into the group of enlarged nuclei, chromatin thick, visible nucleoli, a more abundant cytoplasm, a small amount of cells