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目的分析直径<3cm孤立性结节(SPN)的CT征象,以提高CT对SPN的诊断和鉴别诊断水平。方法回顾经临床及手术病理证实的SPN36例各种CT征象。结果良性结节16例,恶性结节20例;恶性结节多出现分叶征、毛刺征、胸膜凹陷征、血管集束征、空泡征及空气支气管征,且比率明显高于在良性结节中的比率;良性结节多边缘清晰,钙化多见,分叶少而浅。结论CT征象对于SPN的诊断及鉴别诊断具有重要作用。
Objective To analyze CT signs of solitary nodules (SPN) of diameter <3 cm to improve the diagnostic and differential diagnosis of SPN by CT. Methods The CT findings of 36 cases of SPN confirmed by clinical and surgical pathology were retrospectively reviewed. Results There were 16 cases of benign nodules and 20 cases of malignant nodules. Malignant nodules showed lobulation, spiculation, pleural indentation, bundles of blood vessels, vacuolization and air bronchus, which were significantly higher than those in benign nodules In the ratio; benign nodules and more clear edges, more common calcification, leaves less and shallow. Conclusion CT signs have an important role in the diagnosis and differential diagnosis of SPN.