College of Stomatology, Chongqing Medical University, Chongqing, China.
Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China.
J Xray Sci Technol. 2018;26(1):133-140. doi: 10.3233/XST-17344.
Cone beam computed tomography (CBCT) has obvious advantages over regular radiography in diagnosis of complex diseases. Objective of this study is to report a case of a mandibular jaw ameloblastoma recurring cyst, which represents a benign tumor of odontogenic epithelium, using CBCT imaging technology. CBCT examination of the patient suffering with recurrent lower jaw cyst (relapsing four years after surgery) showed a decrease in irregular bone density and appearance of a honeycomb pattern (3.5 cm×2.5 cm×1.8 cm) in the right lower jaw. This suggests that the lesion is more likely to be an ameloblastoma. Preoperative tissue biopsy and pathological examination of surgical sample confirmed the diagnosis. Surgical resection of the diseased tissue and autogenous bone grafting in the mandible was performed. Postoperative CBCT examination showed that the bone defect healed well, without recurrence of the tumor 22 months postoperatively. In conclusion, the rotated 3D CBCT images clearly displays the exact size, location, borders and internal changes of the tumor in the jaw cyst itself and the adjacent tissues. Thus, the dental CBCT allows clinicians to better evaluate lesions, leading to better treatment outcomes.
锥形束 CT（CBCT）在诊断复杂疾病方面明显优于常规射线照相。本研究旨在报告一例下颌骨造釉细胞瘤复发囊肿病例，该病例为牙源性上皮的良性肿瘤，使用 CBCT 成像技术。对患有复发性下颌骨囊肿（手术后四年复发）的患者进行 CBCT 检查，显示下颌骨右侧不规则骨密度降低，出现蜂窝状外观（3.5×2.5×1.8cm）。这表明病变更可能是造釉细胞瘤。术前组织活检和手术样本的病理检查证实了诊断。对病变组织进行了手术切除，并对下颌骨进行了自体骨移植。术后 22 个月的 CBCT 检查显示骨缺损愈合良好，无肿瘤复发。总之，旋转 3D CBCT 图像清晰显示了颌骨囊肿本身及其相邻组织中肿瘤的确切大小、位置、边界和内部变化。因此，牙科 CBCT 可让临床医生更好地评估病变，从而获得更好的治疗效果。
