下颌骨牙源性角化囊肿的X线诊断与鉴别诊断(附52例分析)

X-Ray Diagnosis and Differential Diagnosis of Mandible Odontogenic Keratocyst

目的 分析牙源性角化囊肿的临床与X线特点 ,提高对本病的X线诊断与鉴别诊断的能力。方法 5 2例术前均行颌骨X线正位、侧位摄片 ,其中 2 6例加照颌骨曲面体层摄影。结果 5 2例均经手术病理证实为颌骨牙源性角化囊肿 ,术前确诊 44例 ,误诊 8例 ,诊断准确率为 84.6%。术后随访 5 2例 ,2 4例复发 ,占 46.1%。结论 复发率高 ,侵蚀性强 ,为其临床特点。X线特点 :单房、多房和多发 。

Objective The characteristics of clinical and radiological of mandible odontogenic keratocyst were analysed significantly.The purpose was to know them well in X ray diagnosis and differential diagnosis. Methods Fifty two cases of mandible odontogenic keratocyst had been taken P A and Lat. X ray film before operation,in one of them 26 cases had for orthopantomography. Results Fifty two cases of mandible odontogenic keratocyst were confirmed by pathology. Forty four cases were made a correct dignosis and 2 cases an erroneous diagnosis as dentigerous cyst;6 cases an erroneous diagnosis as ametoblastoma before operation. The correctness rate was 84.6%.There were 24 patients recured after operation and the rate of recur was 46.1%. Conclusion Easy recurrence and strong invasiveness were the characteristics of clinic for mandible odontogenic keratocyst.The radiological findings were uniloculus,multiloculus and multiple cyst with the multiloculus being more common.