Luo Jingjing, You Meng, Zheng Guangning, Xu Laiqing
MDS Candidate, State Key Laboratory of Oral Diseases and Department of Oral Radiology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.
Assistant Professor, State Key Laboratory of Oral Diseases and Department of Oral Radiology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.
Oral Surg Oral Med Oral Pathol Oral Radiol. 2014 Oct;118(4):e126-33. doi: 10.1016/j.oooo.2014.07.008. Epub 2014 Jul 25.
This study aimed to evaluate and summarize the radiographic features of desmoplastic ameloblastoma (DA) on cone beam computed tomography (CBCT) scans and to provide necessary further information for clinical diagnosis and preoperative assessment.
Seven cases with pathologic diagnosis of DA were studied retrospectively. A CBCT scan of each individual was analyzed and compared with its corresponding plain (panoramic) radiograph.
We found that 71.4% of lesions were located in the anterior or premolar regions (or both) and showed root displacement. With the advent of CBCT imaging, most DA lesions (57.1%) were perceived as having honeycomb appearance totally or dominantly. Distinctively, all the lesions presented cortical expansion with perforation in the buccal/labial side.
The typical intralesional structure with honeycomb appearance and the dominant buccal/labial cortical expansion with perforation could be proposed as the characteristic features of DA on CBCT images. CBCT can provide more information for preoperative radiologic assessment of DA compared with panoramic radiography.
本研究旨在评估并总结促结缔组织增生性成釉细胞瘤（DA）在锥形束计算机断层扫描（CBCT）上的影像学特征，为临床诊断及术前评估提供必要的更多信息。
回顾性研究7例经病理诊断为DA的病例。分析每例患者的CBCT扫描结果，并与其相应的全景X线片进行比较。
我们发现71.4%的病变位于前部或前磨牙区（或两者皆有），并表现出牙根移位。随着CBCT成像技术的出现，大多数DA病变（57.1%）被认为整体或主要呈现蜂窝状外观。独特的是，所有病变均表现为皮质扩张，并在颊侧/唇侧有穿孔。
典型的病变内蜂窝状结构以及主要的颊侧/唇侧皮质扩张伴穿孔可被视为CBCT图像上DA的特征性表现。与全景X线摄影相比，CBCT可为DA的术前影像学评估提供更多信息。
