泡性中鼻甲黏液囊肿的CT表现及临床价值

CT findings and their clinical value in the diagnosis of concha bullosa mucocele

目的:分析泡性中鼻甲黏液囊肿的CT表现,探讨CT检查对该病的诊断价值。方法:回顾性分析经手术病理证实的9例泡性中鼻甲黏液囊肿的CT表现,其中5例行CT增强扫描,将CT表现与手术结果进行对照分析。结果:9例中鼻甲黏液囊肿均有泡性中鼻甲不同程度膨大、骨壁变薄、轮廓光滑、占据周围间隙并引起邻近结构受压移位;9例囊肿中6例为低密度(与面部肌肉密度相比),2例为等密度,1例为高密度;5例囊肿CT增强扫描均无强化。结论:CT检查结合多平面重组(MPR)能准确显示泡性中鼻甲黏液囊肿的特征,对该病的诊断和鉴别诊断有重要价值,对鼻内镜手术具有十分重要的指导意义。

Objective：To study the CT findings and their value in the diagnosis of concha bullosa mucocele （CBM）. Methods：The CT features of 9 patients with pathologically proved CBM were retrospectively analyzed,of which, 5 patients underwent enhanced CT. The CT findings were correlated with surgical findings. Results： All 9 patients with CBM had vari- ous degree of concha bullosa expansion,thinning of bony walls, with well defined contour and the adjacent structures were depressed and displaced. The mueoceles were hypo atteneuated （compared with the density of facial muscles） （n =6）,iso- attenuated （n=2） and hyper-attenuated （n= 1）. No enhancement was revealed in the 5 patients of CBM with contrast ad- ministration. Conclusion：CT in combination with multi-planar reformation （MPR） can accurately display the location and characteristics of concha bullosa mucoceles,which plays an important role in the diagnosis and differential diagnosis. CT is an important guidance for nasal endoscopic surgery.