肺癌是我国最常见的恶性肿瘤,影像学早期诊断对患者的预后影响重大。螺旋CT增强扫描作为肺癌的常规检查技术,对孤立性肺结节影像诊断有一定价值,但由于少数良性结节和活动性炎性结节内血管床面积大,血管明显扩张、增粗,血供丰富,与含丰富肿瘤血管供血的肺癌强化常常较为相似,另 Lung cancer is the most common malignant tumor in our country. Early diagnosis of imaging has a great impact on the prognosis of patients. Spiral CT enhanced scan as a routine examination of lung cancer has some value in the diagnosis of solitary pulmonary nodules, but due to a small number of benign nodules and active inflammatory nodules within the vascular bed area, blood vessels were significantly expanded, thickening, blood For rich, and rich in tumor blood vessels to strengthen the lung cancer are often more similar, and the other