上腕骨近位に発生した脱分化型傍骨性骨肉腫の 1 例

抄録

We reported a 32-year old man, who was referred to our hospital because of recurrence of a primary bone tumor in the right humerus. The patient underwent the initial marginal excision surgery of the tumor at the former hospital, and it recurrently appeared about 2 years after the initial surgery. We diagnosed the tumor as parosteal osteosarcoma after diagnostic work-ups. Wide marginal resection of the tumor at diaphysis of right humerus was conducted. After the pasteurization, the bone was re-implanted and a humeral nail was used for osteosynthesis. Twelve months after the surgery, no local recurrence and no metastatic lesions of the tumor were observed. In addition, functionality and range of motion of the right shoulder were preserved. Following surgery, the patient did not experience any difficulties during normal activities.