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牙源性透明细胞肿瘤(CCOT)是一罕见的牙源性上皮源性肿瘤。自1985年Hansen等首次描述了三例以来,仅另有三例报道。该瘤发生于颌骨,有局部浸润性,与转移性肿瘤特别是肾细胞癌难以鉴别。一般认为牙源性透明细胞癌(CCOC)为低恶性肿瘤,本文报道的一例下颌CCOC,是79岁的日本妇女,包块缓慢生长达45年之久,近二月来生长加速,肿瘤体积增大,浸润
Odontogenic clear cell tumor (CCOT) is a rare odontogenic epithelial tumor. Since Hansen et al. first described three cases in 1985, only three cases have been reported. The tumor occurs in the jawbone with local invasiveness and is difficult to distinguish from metastatic tumors, particularly renal cell carcinoma. It is generally believed that odontogenic clear cell carcinoma (CCOC) is a low-grade malignant tumor. In this report, one case of lower jaw CCOC is a 79-year-old Japanese woman. The growth of the mass is slow for 45 years. The growth has accelerated in the past 2 months and the volume of tumor has increased. Large, infiltrating