骨巨细胞瘤(GCT)是一种有局部侵袭性的良性骨肿瘤。女性较男性多见,并且好发于20~40岁的青壮年~([1-3])。骨巨细胞瘤的生物学行为较特殊,术后易复发。目前临床实践中常从肿瘤影像或病理等方面来分析其生物学行为,并对其预后进行判断。而以往骨巨细胞瘤的研究报道,不同年龄段患者术后复发率存在差异~([4-5]),提示年龄可能是影响骨巨细胞瘤生物学行为及预后的因素。但由 Giant cell tumor of bone (GCT) is a locally aggressive benign bone tumor. Women are more common than men, and occur in young adults aged 20 to 40 ~ ([1-3]). Giant cell tumor of bone biological behavior is more special, easy to relapse after surgery. At present, clinical practice often analyzes its biological behavior from the aspects of tumor image or pathology, and judges its prognosis. In the past, giant cell tumor of the giant cell tumor reported that there were differences in the recurrence rate of patients after different ages ([4-5]), suggesting that age may be the factors affecting the biological behavior and prognosis of giant cell tumor of bone. But by