鼻硬结病的CT和MRI诊断1例

CT and MRI diagnosis of rhinoscleroma:A case report

目的:总结鼻硬结病的CT及MRI影像特点。方法:报道1例鼻硬结病侵犯颞下窝并文献复习。结果:病变起源于左侧后鼻孔及左侧蝶窦区,累及左侧咽粘膜间隙、左侧颞下窝及邻近骨质;结合本病例及文献复习,肉芽肿期鼻硬结病CT表现为不规则软组织肿块,轮廓清楚,密度不均匀,可见骨质破坏,残存骨质呈硬化改变;MRI表现为T1WI高信号T2WI等信号影,信号不均匀,增强后中度不均匀强化。结论:CT可清晰显示骨质破坏情况,MRI能更清晰准确显示病变侵犯范围,T1WI高信号有助于鼻硬结病的诊断。两者结合能够为鼻硬结病的诊断及治疗提供更全面准确的信息。

Objective： To summarize the CT and MRI findings of rhinoscleroma. Methods： A case of rhinoscleroma involving infratemporal fossa was reported. Results： The lesion located in the left choana region and left sphenoidal sinus of this case involved the left pharyngeal mucous space, left infratemporal fossa and its adjacent bone structure. CT showed that the rhinoscleroma in granulomatous stage was a soft mass which was irregular in shape, with a well-defined margin, inhomogeneous density and bone destruction. MRI showed heterogeneous hyperintensity on T1WI and isointensity on T2WI with an intermediate heterogeneous enhancement. Conclusion： CT can clearly depict the bone destruction, MRI can demonstrate the invaded extension of the lesion, and hyperintensity on T1WI helps the diagnosis of rhinoscleroma. CT and MRI findings can provide comprehensive accurate information for the diagnosis and treatment of rhinoscleroma,