胸膜间皮瘤是一种起源于胸膜间皮细胞与纤维细胞的一X线检查:右肺中野近肺门旁8 cm×7 cm类圆形阴影,密度较高且较均匀,边缘光滑清晰。X线诊断:右肺占位,建议做进一步检查(图1)。CT检查:纵隔窗示右肺下叶背段近后胸壁处可见团块状软组织密度影,大小为8.5 cm×5 cm×7 cm,病灶内 Pleural mesothelioma is an X-ray examination originating from pleural mesothelial cells and fibroblasts: a circular shadow of 8 cm × 7 cm near the hilum of the right lung near the hilum, with a higher density and a more uniform edge with a smooth and clear edge. X-ray diagnosis: right lung occupancy, it is recommended to do further examination (Figure 1). CT examination: mediastinal window shows the right lower lobe of the chest wall near the chest mass soft tissue mass shadow, the size of 8.5 cm × 5 cm × 7 cm within the lesion