患者男性，18岁，右姆趾肿胀疼痛2个月。查体：右8母跳末节肿胀明显，有压病，皮肤发红。图1右路趾末节处骨膨胀性改变，正常骨小梁消失，代之以细小分隔，骨皮质变薄，有中断现象，未见骨膜反应，妈趾骨软组织肿胀。图2瘤细胞由纤维组织构成，排列呈束状或漩涡状、细胞之间为 The patient was male, 18 years old, with swelling and pain in his right toe for 2 months. Physical examination: The right mother’s swelling at the end of the jump is obvious, there is pressure disease, and the skin becomes red. Fig.1 Bone swelling changes at the right end of the distal toe joint. The normal trabecular bone disappeared and replaced with a fine separation. The cortical bone became thinner and there was an interruption. No periosteal reaction was found. The soft tissue of the mother’s toe bone was swollen. Figure 2 Tumor cells consist of fibrous tissue, arranged in a bundle or whirlpool, between cells