摘要
目的：分析嗅神经母细胞瘤的生长部位及其MRI影像特征，以提高其诊断准确性。方法：回顾性分析经手术或穿刺活检病理证实的嗅神经母细胞瘤13例，术前均行MRI平扫及增强扫描。分析MRI扫描结果并与病理进行对照。结果：13例嗅神经母细胞瘤中，I期0例，II期3例，III期10例。13例肿瘤均破坏筛骨，部分肿瘤破坏蝶骨、上颌骨及纸板，10例肿瘤突破颅底而累及脑实质，其中7例肿瘤周围脑组织呈“指样”水肿，4例肿瘤内出现囊变、出血，3例肿瘤周围脑组织出现多个囊变区。7例肿瘤基本为实性。增强扫描其实性部分呈现中度甚至明显强化。结论：嗅神经母细胞瘤的生长部位、肿瘤的形态、肿瘤的信号特征及对周围骨质及器官的破坏，对于此病的诊断有一定的帮助。
Abstract
Objective: The tumor location, MRI appearance and characteristics of olfactory esthesioneuroblastoma were analyzed to improve its diagnosis. Methods: Thirteen cases with esthesioneuroblastoma confirmed by surgical pathology or biopsy were retrospectively analyzed. Their MRI images were reviewed and compared with surgical and pathological results. Results: In all the 13 cases, 3 cases were classified as grade II, and 10 cases were grade III. All the tumors intruded the ethmoid bone, and some attacked sphenoid bone, maxillary bone and paper plate. However, 10 cases break through the skull base and the brain-parenchyma was involved. Among them, 7 cases of brain tissue surrounding the tumors showed an appearance of finger-like edema, 4 cases with cystic changes and hemorrhage were found within the tumors; 3 cases demonstrated multiple cystic degeneration in the brain tissue around the tumors. The MRI appearance of 7 cases showed solid masses, with even obvious enhancement after contrast scan. Conclusions: The anatomic site, the morphology and the signal characters of esthesioneuroblastoma, and the destruction of its surrounding substantia ossea and organs have some values to make the correct diagnosis for this disease.
关键词
成感觉神经细胞瘤 /
嗅觉 /
磁共振成像
Key words
esthesioneuroblastoma /
olfactory /
magnetic resonance imaging
林志春;陈燕萍;吴慧莹;张雪林.
嗅神经母细胞瘤的MRI表现[J]. 中国临床医学影像杂志. 2007, 18(10): 696-698
LIN Zhi-chun;CHEN Yan-ping;WU Hui-ying;ZHANG Xue-lin.
MRI appearance of olfactory esthesioneuroblastoma[J]. Journal of China Clinic Medical Imaging. 2007, 18(10): 696-698
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