真菌性鼻窦炎CT表现与特征

CT Features and Appearances of Fungal Paranasal Sinusitis

目的探讨真菌性鼻窦炎的CT影像学特点。方法回顾性分析经手术和病理证实的23例真菌性鼻窦炎的CT表现。结果真菌性鼻窦炎发生于上颌窦15例,蝶窦5例,筛窦3例。CT表现为①所有受累鼻窦均显示窦腔内密度增高;②窦腔内可见团块状或斑点样钙化影19例;③窦腔高密度混浊影中有气泡16例;④上颌窦骨质吸收、破坏12例,窦壁骨质膨胀或变薄6例。结论真菌性鼻窦炎具有CT特征表现,如病变鼻窦内团块状高密度影、斑点样钙化影或气泡影,病变常膨入附近鼻窦或鼻腔,鼻窦骨壁可伴有压迫性破坏或吸收等。其中以鼻窦病变内钙化斑最具特异性。CT扫描结合鼻内镜检查是诊断本病的重要手段。

Objective To study evaluate the CT findings of Fungal Paranasal Sinusitis. Methods CT findings in 13 patients with pathologically - proved fungal poranasal sinusitis were retrospectively analyzed. Results out of 23 patients, the lesion of chronic invasive fungal poranasal sinusitis occurred from maxillary sinus in 15 ,from sphenoid sinus in 5 ,and from ethmoidal sinus in 3. On CT scans, Increased attenuation of diseased paraotsil sinuses ,lump or linear calcification in maxillary sinus, Air bubbles within high -dense muddy shadow in maxillary cavity. Bony destruction or absorption, expanding or thinning of maxillary sinus wall. Conclusions Fungal Paranasal Sinusitis carries some characteristics on CT scan, such as lump high -dense shadow, linear caleificatiom and air bubbles within the diseased sinus. Combined with nasal endoscopy, CT seanning can provide important diagnostic information.