临床资料患者 ,男 ,5 1岁。无诱因突然咳嗽 ,痰中带血 ,发热。Ｘ线检查正位胸片见左心缘圆隆毛糙 ,侧壁胸膜增厚 (图 1)。侧位胸片见左下肺脊柱重叠处见一较大肿块影 (图 2 )。ＣＴ检查 :左下肺可见一 3ｃｍ× 4ｃｍ大小软组织肿块 ,边缘不规则 ,密度欠均匀 ,内有数个透光区 , Clinical data Patient, male, 51 years old. Sudden cough without cause, bloody sputum, fever. X-ray anteroposterior radiographs to see the left heart margin round rough rough, pleural thickening of the wall (Figure 1). Lateral chest radiograph seen in the lower left spine overlap at a larger mass (Figure 2). CT examination: the left lower lung can be seen a 3cm × 4cm size of soft tissue mass, the edge of the irregular, uneven density, there are several light transmission area,