| 赵雪,王晶波,陶晓峰.颌骨牙源性粘液瘤的螺旋CT和MRI影像表现[J].中国医学影像技术,2020,36(1): |
| 颌骨牙源性粘液瘤的螺旋CT和MRI影像表现 |
| Characteristic Features of the Odontogenic Myxoma on CT and MRI. |
| 投稿时间：2019-04-24 修订日期：2020-01-09 |
| DOI： |
| 中文关键词: 牙源性粘液瘤 体层摄影术 X线计算机 磁共振成像 |
| 英文关键词:Odontogenic myxoma Tomography,X-ray computed Magnetic resonance imaging |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘要点击次数: 1975 |
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| 中文摘要: |
| 目的：探究颌骨牙源性粘液瘤的螺旋CT及MRI的影像特征。
方法: 回顾性分析经病理证实的40例牙源性粘液瘤患者, 40例均行CT检查，其中11例行CT增强检查；5例行MRI检查，其中2例行MRI增强检查。观察40例的病灶部位、大小、内部结构、密度、信号、强化特点。
结果：40例中女22例（55%），男18例（45%），年龄10～66岁，平均（33.5±13.5）岁；上颌骨11例，下颌骨29例；临床表现为颌骨缓慢生长的无痛性肿块（29例 72.5%）；主要影像学表现：40例均呈膨胀性改变，2例呈局灶性骨质破坏。特征性表现为多房伴垂直或成角分隔（21例52.5%）,分隔朝向肿瘤周边。邻近牙齿脱落（18例45.0%）多见。CT增强上多数病灶可有边缘强化，MRI检查对病灶范围及成分的显示具优势。
结论：牙源性粘液瘤的CT表现具有特征性，联合MRI检查对颌骨OM病变诊断具重要意义。 |
| 英文摘要: |
| Objective: To explore the spiral CT and MRI features of odontogenic myxoma of the jaw.
Methods: 40 patients with odontogenic myxoma confirmed by pathology were retrospectively analyzed. 40 patients underwent CT examination, 11 of them underwent contrast-enhanced CT examination, 5 underwent MRI examination, and 2 underwent contrast-enhanced MRI examination. The location, size, internal structure, density, signal intensity and enhancement characteristics of 40 cases were observed.
Results: Of the 40 cases, 22 were women (55%) and 18 were men (45%). The age ranged from 10 to 66 years, with an average age of (33.5 + 13.5); 11 were maxilla and 29 were mandible; the clinical manifestations were painless mass with slow growth of jaw (29 cases, 72.5%). The main imaging manifestations were as follows: 40 cases showed expansive changes and 2 cases showed focal bone destruction. The characteristic manifestation was multilocular septation with vertical or angular septation (52.5% of 21 cases). The septation was oriented towards the periphery of the tumor. Adjacent tooth exfoliation was common in 18 cases (45.0%). Most lesions can have edge enhancement on CT enhancement, and MRI has advantages in displaying the scope and composition of the lesions.
Conclusion: The CT manifestations of odontogenic myxoma are characteristic, and combined with MRI examination is of great significance in the diagnosis of OM lesions in jaws. |
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