• The Journal of the Korean bone and joint tumor society
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• v.1 no.2
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• pp.249-253
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• 1995

The fibrous dysplasia is a progressive and disabling condition that lead to deformity, especially weight bearing bones. The morbidity that is associated with the polyostotic fibrous dysplasia is the recurrent fracture and deformity. Various methods of treatment had been failed to control this problem. We used osteotomy and reconstruction nailing for polyostotic fibrous dysplasia occured in the proximal part of right femur with varus deformity and reconstruction nailing in left femur without osteotomy, and interlocking intramedullary nailing in right tibia to prevent pathologic fracture. These methods brought a good result of bone union and full weight bearing ambulation after 1 year and 6 month follow up. We think these methods are useful methods to control refracture and deformity, so we reported this case with bibliographic reviews.

• The Journal of the Korean bone and joint tumor society
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• v.10 no.1
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• pp.50-55
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• 2004

Fibrodysplasia ossificans progressiva is a very rare genetic disorder, but is possible to diagnose with mass on neck or scalp in early neonate or child and accompanying characteristic congenital malformation of great toe. But because inappropriate treatment and complications from misdiagnosis may aggravate the progress of the disease, so the disorder require careful inspection for accurate diagnosis. We describe a case that was misdiagnosed properly and treated inappropriately and the natural history of the disease in adult.

• The Journal of the Korean bone and joint tumor society
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• v.7 no.4
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• pp.157-161
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• 2001

Nearly a quarter of cases of non-Hodgkin's lymphoma present with extranodal, but rarely involve the soft tissue. The authors experienced one case of non-Hodgkin's lymphoma presenting as voluminous subcutaneous tissue tumors in the left axilla and arm.

• The Journal of the Korean bone and joint tumor society
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• v.18 no.2
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• pp.109-112
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• 2012

A turret exostosis was known a smooth, dome-shaped extracortical collection of subperiosteal bone beneath the extensor apparatus. In most cases, turret exostosis involve middle and distal phalanges compared with involving metacarpal cases have been rarely reported in the literature.

• The Journal of the Korean bone and joint tumor society
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• v.9 no.2
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• pp.217-222
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• 2003

The giant cell tumor comprises approximately 5% of all bone tumors especially in the long tubular bones, particularly in proximity to the epiphysis. A rare case of giant cell tumor involving the patella was recently experienced by authors. Case summary with brief review of reference is presented.

• The Journal of the Korean bone and joint tumor society
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• v.5 no.4
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• pp.229-234
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• 1999

Giant cell tumor of the talus is an extremely rare condition and therapeutic options are ill defined. Recently we experienced a case of giant cell tumor of the talar body in a 20-year-old male treated by curettage and bone graft. There was no recurrence at 1year follow-up. A case report and review of the literature are presented.

• The Journal of the Korean bone and joint tumor society
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• v.5 no.4
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• pp.216-220
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• 1999

The purpose of this study was to evaluate the role of c-fos oncogenes in the development of fibrous dysplasia and osteofibrous dysplasia. The immunohistochemical expression of c-fos protein was evaluated in 15 cases of fibrous dysplasia and 8 cases of osteofibrous dysplasia. Ten cases of fibrous dysplasia were weakly positive with c-fos. Six cases of osteofibrous dysplasia were weakly positive and the remaining two cases were strongly positive. The overall expression of c-fos protein is weaker than high-grade osteosarcoma, thus the implication of c-fos protein is little in the development of these tumors. Fibrous dysplasia and osteofibrous dysplasia share some features of characteristic histology and c-fos expression.

• The Journal of the Korean bone and joint tumor society
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• v.4 no.2
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• pp.94-98
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• 1998

Clear cell sarcoma of the kidney (CCSK) is a rare malignant tumor of the renal origin in childhood, distinguished from Wilms tumor by its pathologic and clinical features. Bone metastasis is one of the characteristic clinical features. The common site of metastasis of the clear cell Sarcoma of the kidney is axial skeleton including skull, spines, ribs and femur. A cases of clear cell Sarcoma of the kidney presented to us, which solely metastasized to the hand bones without metastasizing to any other tissues including axial skeleton. We report this case with review of literatures.

• The Journal of the Korean bone and joint tumor society
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• v.13 no.2
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• pp.152-156
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• 2007

Giant cell tumor of bone is relatively common neoplasm usually involving epiphysis of long bone. And rarely it involves the diaphysis or metaphysis without epiphyseal extension. We report on an 18-year-old girl with giant cell tumor of ulnar diaphysis. She was treated with wide excision and reconstuction with nonvascularized autogenous fibular graft. We harvested fibular fragment preserving fibular continuity to reduce donor site morbidity. Surgical outcome and functional result was excellent.

• The Journal of the Korean bone and joint tumor society
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• v.4 no.1
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• pp.59-64
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• 1998

Parosteal osteosarcoma is characterized as a densely ossifying lesion, usually occurring on the surface near the metaphyses of a long bone. The histological pattern is a well- differentiated mature bone trabeculae with a hypocellular spindle-cell stroma. The cytological details are those of a low-grade malignant lesion. The natural history of this lesion is indolent local growth, late invasion of the underlying bone, and infrequently, distant metastasis. However, there is a significant risk of eventual dedifferentiation into a high-grade lesion. We report here-a case of parosteal osteosarcoma dedifferentiated into a high-grade lesion, which occurred in the left distal femur of a 40-years-old woman, and discuss the experience in detail.