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典型的巨细胞瘤(GCT)是发生于长骨骨骺或干骺部的单发肿瘤。女性GCT的发生率稍高。有70％的病人发病在20～40岁。多中心巨细胞瘤(MGCT)是GCT不常见的变异型。MGCT的病人比单发灶者年轻。MGCT在确诊时常属晚期。而且比单发者更易发生病理性骨折。作者报道5例,均在长骨骨端发病,其中有1例还于左环指近端发病,有1例病变位于右足1～3蟅骨,有1例病灶位于耻骨支。病变均为膨胀性骨溶解。5例的初发、复发病变部位计25处之
A typical giant cell tumor (GCT) is a single tumor that occurs in the long bone callus or the metaphysis. The incidence of female GCT is slightly higher. 70% of patients have 20-40 years of age. Multi-center giant cell tumor (MGCT) is an unusual variant of GCT. Patients with MGCT are younger than those with single lesions. MGCT is often advanced at the time of diagnosis. And it is more prone to pathological fractures than a single person. The authors reported that 5 cases were all at the end of the long bone. Among them, 1 case was also present in the proximal end of the left ring finger, 1 case was located in the right foot 1 to 3 sacrum, and 1 case was located in the pubic branch. The lesions are expansive osteolysis. 5 of the initial and recurrent lesions were counted at 25 sites