患者　男 ,73岁。因胸痛、气短、左胸腔积液入院。Ｘ线胸片显示左胸腔大量积液。超声检查 :坐位 ,由左胸第五肋间逐肋间向上扫查 ,见胸腔积液直达锁骨下 ,隔肋角处深 5 0ｃｍ ,在胸水中有漂浮之小点状强回声。在胸水液性暗区衬托之下 ,清晰可见胸膜弥漫性不均匀性增厚 ,最厚达 The patient was male, 73 years old. Because of chest pain, shortness of breath, left pleural effusion admission. The chest X-ray showed a large effusion in the left thoracic cavity. Ultrasound examination: sitting position, from the left chest fifth intercostal up scan, see the pleural effusion directly under the clavicle, rib horn at a depth of 50cm, in the pleural effusion with a small dot-like strong echo. In the dark area of ​​pleural fluid under the background, it is clear that the pleural diffuse uneven thickening, the thickest