周围型肺错构瘤的多层螺旋CT表现

MSCT Findings of Peripheral Pulmonary Hamartoma

目的:探讨周围型肺错构瘤的MS CT特征,提高诊断准确率。方法:对8例行MS CT检查并经手术和病理证实的周围型肺错构瘤进行回顾性分析。结果:本组8例均为单发周围型肺错构瘤,位于右肺5例,位于左肺3例。病灶呈圆形或椭圆形,边缘锐利。5例病灶内含有脂肪密度影;3例病灶内含有钙化影,其中1例为典型的爆米花样钙化;2例病灶呈软组织密度影。结论:周围型肺错构瘤的MS CT表现有一定的特征性,边缘锐利、结节内含有脂肪和钙化有助诊断。

Objective：To study the MS CT features of peripheral pulmonary hamartoma, and improve the diagnostic accuracy. Methods：CT findings of 8 patients with surgically and pathologically proved peripheral pul- monary hamartoma and received MSCT examinations were analyzed retrospectively. Results： All 8 cases had a solitary peripheral pulmonary hamartoma, 5 in right lungs and 3 in left lungs. On CT images, the hamartoma te- sions of all patients appeared as round or oval shape with well - defined margin. 5 had intralesional fat density shadows, 3 Had intralesional calcified shadows which comprised 1 typical popcorn calcifications, and 2 appeared as homogeneous soft tissue density shadows. Conclusion： Some specific MS CT features, including well- defined margin, calcification and fat inside, are useful for diagnosis of peripheral pulmonary hamartoma.