目的 探讨CT与MRI在诊断真菌性 鼻窦炎中的作用。方法 回顾性分析2011 年3月-2015年8月病理确诊为真菌性鼻窦 炎的41例患者的临床资料，其中男25例， 女16例，年龄(53.9±5.4)岁。所有患者 均完成CT与MRI扫描，与病理结果对照。 结果 CT见受累鼻窦黏膜增厚，病变窦腔 密度不均，软组织密度影填满窦腔，病灶 内可见小气泡影残留，伴钙化，部分伴上 颌窦内壁骨质呼吸破坏，骨壁增生硬化； 病变窦腔T1WI呈低信号或等信号，T2WI 呈低信号或混合不均匀信号，周围T1WI 呈低信号，T2WI呈高信号，信号影充满窦 腔，增强可见鼻窦黏膜增厚，病变中央无 强化。结论 CT对真菌性鼻炎病变内钙化 显示好，可作为首选筛查手段，MRI则可 显示病灶侵犯特点及附近组织结构，对CT 不能确诊真菌性鼻窦炎患者可配合MRI筛 查，以提高诊断准确率。

Objective To investigate the role of CT and MRI in the diagnosis of fungal sinusitis. Methods The clinical data of 41 patients with pathologically confirmed fungal sinusitis from March 2011 to August, were retrospectively analyzed, including 25 males and 16 females, aged (53.9+5.4) years old. CT and MRI scans were performed in all patients, and the results were compared with pathologic findings. Results CT showed that the involved sinus mucosal thickening, sinus cavity density, soft tissue density filled sinus cavity, the lesions seen in the mean bubble residue, calcification, with part of the medial wall of the maxillary sinus bone respiratory damage, wall of bone hyperplasia and sclerosis; sinus cavity T1WI is low signal or signal on T1WI and T2WI showed heterogeneous low signal or mixed signal, around T1WI showed low signal on T1WI and T2WI showed high signal, the signal with sinus cavity and enhanced visible sinus mucosal thickening and central lesion without enhancement. Conclusion CT scan of mycotic rhinitis lesion calcification, as the preferred screening method, MRI can show the lesion involving the characteristics and the nearby tissue structure and the CT cannot be diagnosed fungal sinusitis patients with MRI screening, in order to improve the diagnostic accuracy rate of the.