1　病例报告女 ,5 8岁。 X线平片发现右下肺粗条状影 ,余肺未见异常 ,诊断为支气管粘液嵌塞。为明确诊断行螺旋 CT扫描 ,平扫示右下肺条状影似与血管有关 (图 1) ,余肺野未见异常。减薄扫描显示右下肺病变呈竹节状扩张 CT值 42 Hu,近端与右下肺静脉连接部明显变窄 ,诊断为肺动 1 case report female, 58 years old. X-ray film found thick right lower quadrant shadow, no abnormal lungs, diagnosis of bronchial mucus impaction. To confirm the diagnosis of spiral CT scan, plain scan showed right lower lobe shadow and blood vessels (Figure 1), more than the lung field no abnormalities. Thinning scan showed right lower lung lesions were bamboo-like expansion CT value 42 Hu, proximal and lower right pulmonary vein connections significantly narrowed, the diagnosis of pulmonary motion