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目的:探讨牙瘤的X线曲面断层全景片和CT表现特点,提高对牙瘤的认识。方法:回顾性分析经手术病理证实的9例牙瘤患者的X线曲面断层全景片、CT和临床资料。结果:X线曲面断层全景片和CT平扫均表现为颌骨内病灶直径1.5～6.0 cm(平均3.0 cm)的浓密的钙化肿块;3例组合性牙瘤均见多发牙齿样结构,6例混合性牙瘤均显示孤立的、界限清楚的钙化团块影,未见牙齿样结构,周围伴有低密度透光带。结论:牙瘤在X线曲面断层全景片和CT上有相对的特征表现,对临床的定性诊断有价值。
Objective: To investigate the features of panoramic radiographs and CT features of X-ray surface of dental tumors and to improve their understanding of dental tumors. Methods: X-ray panoramic tomography, CT and clinical data of 9 patients with confirmed dental operations confirmed by surgery and pathology were retrospectively analyzed. Results: X-ray panoramic tomography and plain CT scan showed dense calcified lumps with a diameter of 1.5 ~ 6.0 cm (mean 3.0 cm) in the jaw. Multiple dental structures of the three cases were found, and the number of teeth was 6 Mixed odontoma showed isolated, well-defined calcified mass shadow, no tooth-like structure, surrounded by low-density light transmission band. CONCLUSION: Tumor has relative characteristics in X-ray panoramic tomography and CT, and is valuable for the clinical diagnosis.