鼻硬结病的磁共振成像表现。
MR appearance of rhinoscleroma.
作者信息
Razek A A, Elasfour A A
机构信息
Department of Radiology, Mansoura Faculty of Medicine, Egypt.
出版信息
AJNR Am J Neuroradiol. 1999 Apr;20(4):575-8.
BACKGROUND AND PURPOSE
We describe the MR imaging appearance of rhinoscleroma, an endemic, chronic, granulomatous disease whose causative agent is Klebsiella rhinoscleromatis.
METHODS
The study included 15 patients (nine males and six females; mean age, 25 years; range, 13-36 years) with rhinoscleroma. MR imaging was performed in all patients. The signal intensity of the nasal masses was compared with that of fat, muscle, and CSF on both T1- and T2-weighted images. All cases were proved by histopathologic examination.
RESULTS
The nasal masses were bilateral and symmetrical (n = 6), asymmetrical (n = 4), or unilateral (n = 5). They extended through the anterior nares (n = 9) or posterior choana into the nasopharynx (n = 3). They obstructed the ostiomeatal units with retained secretions in the related sinuses (n = 10). On T1-weighted images, rhinoscleroma showed striking (n = 9) or mild (n = 6) high signal intensity relative to muscle and CSF, but less hyperintensity than fat. On T2-weighted images, the nasal masses showed homogeneous high signal intensity (n = 10) or heterogeneous high signal intensity associated with hypointense foci (n = 5). They were hyperintense relative to fat and muscle, but less hyperintense than CSF.
CONCLUSION
The hypertrophic stage of rhinoscleroma has characteristic mild to marked high signal intensity on both T1- and T2-weighted MR images.
背景与目的
我们描述鼻硬结病的磁共振成像表现，这是一种地方性慢性肉芽肿性疾病，其病原体为鼻硬结克雷伯菌。
方法
该研究纳入了15例鼻硬结病患者（9例男性，6例女性；平均年龄25岁；范围13 - 36岁）。所有患者均行磁共振成像检查。在T1加权像和T2加权像上，将鼻腔肿物的信号强度与脂肪、肌肉及脑脊液的信号强度进行比较。所有病例均经组织病理学检查证实。
结果
鼻腔肿物双侧对称者6例，不对称者4例，单侧者5例。肿物经前鼻孔扩展者9例，经后鼻孔延伸至鼻咽部者3例。肿物阻塞窦口鼻道复合体，相关鼻窦内有分泌物潴留者10例。在T1加权像上，鼻硬结病相对于肌肉和脑脊液呈显著高信号（9例）或轻度高信号（6例），但信号强度低于脂肪。在T2加权像上，鼻腔肿物呈均匀高信号（10例）或伴有低信号灶的不均匀高信号（5例）。相对于脂肪和肌肉，肿物呈高信号，但信号强度低于脑脊液。
结论
鼻硬结病的肥厚期在T1加权像和T2加权像上具有特征性的轻度至显著高信号强度。
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