• The Journal of the Korean bone and joint tumor society
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• v.17 no.2
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• pp.87-90
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• 2011

Osteoblastoma is rare, benign, bone-forming tumor that often occur in the spine. There are few reports of osteoblastomas resulting in pathologic fractures involving long bones. Authos report a unique case of a pathologic fracture due to an osteoblastoma of the humerus shaft. The tumor was treated successfully by curettage, intramedullary nailing and bone allograft.

• The Journal of the Korean bone and joint tumor society
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• v.7 no.2
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• pp.64-67
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• 2001

Epithelioid sarcoma has been well characterized as a distincitve entity. In the classic form, it occurs in the distal extremities of young adults. However, in the proximal form, it was found mostly in the pelvis, perineum, and genital tract of young to middle-aged adults. Morphologically, the tumor cells had promient epithelioid or rhabdoid features with marked cytologic atypia, and grew in a multinodular pattern. Immunohistochemically, cytokeratin, epithelial membrane antigen, and vimentin were positive in the tumor cells. This reports dealt with 32-year-old male lesion on his perineum. The tumor shows typical features of proximal type epithelioid sarcoma. We also discussed pathological differential diagnosis and prognosis on this particular disease.

• The Journal of the Korean bone and joint tumor society
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• v.9 no.2
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• pp.223-232
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• 2003

As we know, alveolar soft part sarcoma is usually found at the head region in children and thigh in adults. It is very rare tumor that has poor prognosis due to its late detection after distant metastasis in spite of its slow growth rate. It is histologically characterized by pseudoalveolar pattern tumor cells. And metastasis usually occur in the site of lung, brain and skeleton in order lately. We have managed two cases of the sarcoma, one which took place in relatively rare part, pelvic bone and has spread to the brain, the other which primarily occured in the calf. For its varity, we report these two cases with reviewing of the literatures.

• The Journal of the Korean bone and joint tumor society
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• v.11 no.1
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• pp.17-24
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• 2005

Local treatment for tumors has developed from extended radical surgery to function preserving surgery on the basis of modern biology. With the development of minimally invasive technique, it changed to be minimal-invasive surgery. And nowadays technical revolution made non-invasive surgery possible with appearance of several kinds of non-surgical knives such as gamma knife, cyber knife, and HIFU (high intensity focused ultrasound) knife. In this article, history, HIFU machine and treatment procedure, histological change and its mechanism, clinical applications, advantage, disadvantage, and future prospect of extracorporeal high intensity focused ultrasound therapy using HIFU knife will be reviewed.

• The Journal of the Korean bone and joint tumor society
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• v.20 no.2
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• pp.104-108
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• 2014

Bizarre parosteal osteochondromatous proliferation (Nora's lesion) is a rare benign tumor and known to be primarily occur in the small tubular bone of the hands and feet. However, it is very unusual to be reported that it occurs in metatarsal bone in Korea. Thus, we report this tumor of metatarsal bone including the literature review because we have experienced this example.

• The Journal of the Korean bone and joint tumor society
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• v.18 no.1
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• pp.41-44
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• 2012

Glomus tumor is a kind of vascular tumor that arises from the glomus body, which regulates skin temperature and is placed in the skin and the subcutaneous area. It is a benign tumor that usually presents in the subungal area. It is relatively common in areas other than the fingers, but its occurrence in peripheral nerves is known to be comparatively rare. We report our experience with a case of glomus tumor arising from the brachial plexus, a rare site of occurrence for glomus tumors.

• The Journal of the Korean bone and joint tumor society
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• v.8 no.2
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• pp.54-57
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• 2002

Since Keck described the tarsal tunnel syndrome in 1962, it has been one of the most frequently diagnosed of the entrapment neuropathies. Tarsal tunnel syndrome is usually of unknown origin, benign tumor may be one of the causes of tarsal tunnel syndrome. The object of the current study is to report our experience of surgical treatment about tarsal tunnel syndrome caused by neurilemmoma in 32-year-old female and by ganglion in 39-year-old male with a review of the literature.

• The Journal of the Korean bone and joint tumor society
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• v.12 no.2
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• pp.136-140
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• 2006

Pelvic bone is location with the worst prognosis in primary malignant bone tumor. Malignant bone tumor around symphysis pubis is extremely rare, and although small size, it is difficult to excise because of anatomical location. The authors report a case of intra-pelvic chondrosarcoma of the pubic bone with good functional result through resection by both superior & inferior pubic ramus osteotomy.

• The Journal of the Korean bone and joint tumor society
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• v.7 no.1
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• pp.20-27
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• 2001

Purpose : The giant cell tumor of tendon sheath is the second most common tumor of the hand, but recurred frequently although excision was performed. Authors analyzed and would report clinical findings and postoperative results of it. Materials and Methods : Between January 1991 and December 1998, 38 patients, 41 cases which the authors had performed excisional biopsy to the mass in the hand and diagnosed with the giant cell tumor of tendon sheath, was analyzed with age, sex, chief complaint, symptom duration, involved finger, involved tendon, frequently developed site in fingers, size, multiplicity, radiologic findings and recurrence. The mean duration of follow-up was 13.1 months (5~40 months). Results : Of 38 patients, twenty-nine were female. It is frequent in the fourth decade and mean age was 40.1 years old. The neurological compression symptom was found in 5 cases. The mean duration of symptom was 23.4 months. Flexor tendon was involved in 24 cases. The distal interphalangeal joint area in digit was involved most frequently in 20 cases. Index finger was the most common involved finger (14 cases), and long finger was the second most common (9 cases). All tumors were unilateral. The majority of patients had solitary lesion but one case had multiple lesion. In the radiologic findings, erosion or pressure indentation of bone was seen in 3 cases. All patients were operated by marginal excision. Recurrence rate was 5.1%. Conclusion : The risk factors in giant cell tumor of tendon sheath were female, forth decade, index finger, flexor tendon, and distal interphalangeal joint area. The recurrence was increased in marginal excision of recurred cases, in cases with multiple developed lesions or in multilobular lesion, so wide surgical excision is necessary to prevent recurrence.

• The Journal of the Korean bone and joint tumor society
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• v.9 no.1
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• pp.93-100
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• 2003

Clinical outcome of malignant tumor heavily depends on early diagnosis and proper management of the patient. But it's very difficult to diagnose malignant tumor in early stage because of it's vague symptoms and inadequate evidences of malignancy in radiologic studies and biopsy. Malignant tumor mistaken for infection or fracture initially will undergo inadequate treatment and that will influence on it's prognosis. So it's very important to rule out the possibility of malignancy by repeated evaluation if it's diagnosis is not definite. We report 1 case of osteosarcoma initially mistaken for stress fracture and 3 cases of osteosarcoma, malignant lymphoma and Ewing's sarcoma initially mistaken for tuberculosis and review the literature.