患者54岁,平素身体健康,于当地医院体检时,X线胸片发现右下肺第5前肋间心缘旁及左下肺第5前肋端心影重叠处,各见团块状及结节状密度增高阴影,大小分别约2.5cm×3.0cm和1.2cm×1.5cm,边界欠清楚。进一步查胸部CT示:两肺散在大小不等肿块及结节状密度增高阴影,最大病灶位于右肺下 54-year-old patient, usually healthy, at the local hospital examination, chest X-ray found in the right lower lung before the 5th intercostal margin and the left lower extremity of the fifth anterior rib cage superimposed at the shadow, see the group lumps and nodules Shape density increased shadows, the size of about 2.5cm × 3.0cm and 1.2cm × 1.5cm, the border is not clear. Further investigation of chest CT showed: two lungs scattered in different sizes and nodular density increased shadow, the largest lesion in the right lung