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目的:探讨早期中央型肺癌的多排螺旋CT的征象、诊断及漏误诊原因,以提高早期中央型肺癌的MSCT诊断水平。方法:对29例由病理证实的早期中央型肺癌的CT资料分析MSCT的主要征象、诊断及漏误诊的因素。结果:CT诊断或拟诊中央型肺癌24例,肺炎1例,支气管扩张伴感染1例,结核1例,漏诊2例,并分析出漏误诊病例的原因。早期中央型肺癌主要CT表现有:支气管腔内结节,支气管管壁的增厚、管腔的狭窄,支气管铸型阴影,阻塞性肺炎与肺不张等。结论:早期中央型肺癌的MSCT检查、多维重建及熟悉CT主要征象对发现早期病变并准确诊断具有重要意义,熟悉掌握支气管的CT解剖结构、良好的读片观察习惯、仔细重建有利于提高早期中央型肺癌的诊断。
Objective: To investigate the signs, diagnosis and misdiagnosis of multislice spiral CT in early central type of lung cancer so as to improve the diagnosis of early stage central lung cancer. Methods: The CT features of 29 cases of early central lung cancer confirmed by pathology were analyzed. The main signs, diagnosis and misdiagnosis factors of MSCT were analyzed. Results: Twenty-four cases of central lung cancer were diagnosed or diagnosed by CT, one case of pneumonia, one case of bronchiectasis with infection, one case of tuberculosis, and two cases of missed diagnosis. The causes of misdiagnosis were analyzed. The main CT manifestations of early central lung cancer are: bronchial nodules, bronchial wall thickening, stenosis, bronchial cast shadow, obstructive pneumonia and atelectasis. Conclusion: MSCT of early stage central lung cancer, multi-dimensional reconstruction and familiar with the main CT features of early lesions and accurate diagnosis of diagnosis is of great significance, familiar with bronchial CT anatomy, good reading observation habits, careful reconstruction is conducive to improving the early central Diagnosis of lung cancer.