霉菌性鼻窦炎的CT诊断（附8例分析）

CT Diagnosis of Fungal Infection of Paranasal Sinuses: Analysis of 8 Cases

目的：旨在认识霉菌性鼻窦炎ＣＴ表现的特征，以便作出准确的定性诊断。材料与方法：搜集经手术病理证实的霉菌性鼻窦炎８例，其中曲霉菌病５例，毛霉菌病２例，隐球菌病１例。对它们的ＣＴ征象结合病理改变进行回顾性分析。同时对本病与一般性炎症、肿瘤之间的鉴别诊断作了讨论。结果：以下ＣＴ征象可作为诊断该病的重要依据：（１）病变为单侧性，对侧鼻腔鼻窦正常；（２）病变仅位于上颌窦或以上颌窦为主，累及同侧鼻腔及其他鼻窦；（３）病变窦腔密度增高，不均匀，ＣＴ值平均为７２ＨＵ，内有小团状、砂粒状、条状极高密度区；（４）可有鼻窦骨质破坏，病变可向颞下窝、眼眶等处侵犯。结论：研究结果表明，霉菌性鼻窦炎在ＣＴ表现上有特异性。

Objective: This study is to demonstrate the findings of fungal infection of paranasal sinuses.Materials and Methods: Eight cases of this disease, verified by surgery and pathology were collected, including aspergillosis (n=5), mucormycosis (n=2), cryptococcosis (n=1). Their CT findings with pathological changes were prospectively evaluated.Results: Diagnostic criteria of this disease were as follows: (1) almost always unilaterally located; (2)maxillary sinus is mainly involved; (3)involved paranasal sinuses demonstrate heterogenous opacification with small calcified areas; (4)local bone destructions were seen. Conclusion: The results showed that CT manifestations of fungal infection of paranasal sinuses have characteristic features so CT scan is a valuable method for diagnosing this disease