影像诊断与介入放射学

目的探讨毛刺征对肺孤立结节(≤3cm)的诊断与鉴别诊断价值。方法回顾性分析67例经手术和穿刺活检等病理证实的肺孤立结节的CT表现,对毛刺征与肺孤立结节CT表现的病理基础及鉴别诊断进行了讨论。结果周围型肺癌的毛刺征发生率为86.3%(44/51),明显高于良性肺孤立结节(25%,4/16)(χ2=22.51,P<0.005),肺癌短毛刺(95.5%)明显多于长毛刺(4.5%)(χ2=30.55,P<0.005)。结论薄层CT扫描毛刺征在肺孤立结节的诊断及鉴别诊断中有重要价值。

Objective To study the evaluation of “spiculation”sign in the diagnosis and differential diagnosis of solitary pulmonary nodule(≤3 cm).Methods CT images in 67 cases of solitary pulmonary nodule confirmed by operatively and pathologically were reriewd retrospectively.The pathologic basis of CT findings and differental diagnosis were discussed. Results CT features of the spiculatoin occurred more frequently in peripheral lung cancer(86.3%,44/51) than in other solitary pulmonary nodule(25%,4/16)(χ2=22.51,P< 0.005).The short spiculation occurred more frequently (95.5%)than the long spiculatoin(4.5%) in peripheral lung cancer (χ2=30.55,P< 0.005). Conclusion Spiculation has important clinic evalue in the diagnosis and differentiation of solitary pulmonary nodule, thin collimation scan is more accurate to show spiculation.