• The Journal of the Korean bone and joint tumor society
• /
• v.7 no.4
• /
• pp.144-150
• /
• 2001

It is not uncommon for sarcomatous transformation of giant cell tumor of bone to occur after radiation, but osteosarcoma arising from giant cell tumor after surgical treatment is very rare and remains an aggressive form of sarcoma of bone with high mortality rate. We experienced 2 cases in whom a osteosarcoma developed long after benign giant cell tumor of bone was removed surgically from the same site. Malignant transformation was presented at 2 years 1 month and 9 years 8 months each after initial surgery. We describe our experience concerning clinical features, methods of treatment and outcomes of osteosarcoma arising from giant cell tumor.

• The Journal of the Korean bone and joint tumor society
• /
• v.18 no.2
• /
• pp.99-103
• /
• 2012

Little literature exists about the risk of atypical femoral fracture in patients received zoledronic acid for prevention of skeletal metastasis. We report an atypical subtrochanteric femoral fracture in a patient with multiple myeloma received zoledronic acid. The patient was treated by closed reduction and internal fixation with cephalomedullary nailing.

• The Journal of the Korean bone and joint tumor society
• /
• v.6 no.4
• /
• pp.143-151
• /
• 2000

Purpose : The p53 tumor suppressor gene is one of the most frequently altered genes in human malignancies. We try to explore the implication of p53 alteration in Ewing's sarcoma. Materials and Methods : We analyzed 35 paraffin blocks to explore the deletion and sequence alterations of p53. Results : Quantitative PCR analysis showed that 2 tumors showed a homozygous deletion of the gene. Mutational analysis of exons 4 to 9 of p53 by PCR-SSCP revealed that 3 tumors carry sequence alterations in exons 5 or 8, and DNA sequencing analysis identified missense point mutations. Conclusion : Taken together, our data demonstrate that p53 is genetically altered in a small fraction of Ewing's sarcoma.

• The Journal of the Korean bone and joint tumor society
• /
• v.6 no.4
• /
• pp.168-172
• /
• 2000

Benign soft tissue mesenchymoma is a tumor composed of at least 2 mesenchymal elements, not ordinarily found together in a tumor. Very few cases are reported worldwide and even more, preponderance for cartilage in benign mesenchymoma is extremely rare. Up to our knowledge, total of 11 cases are reported to have cartilaginous rich benign soft tissue mesenchymoma. We are reporting a case of three-year-old male who developed benign soft tissue mesenchymoma rich in cartilaginous materials that occurred on the lower aspect of the back.

• Journal of Chest Surgery
• /
• v.30 no.11
• /
• pp.1154-1158
• /
• 1997

Synovial sarcoma is an uncommon malignant mesenchymal tumor that occurs in the vicinity of the joints, bursae, and tendon sheaths. Typically the lesions are located in the extremities, especially in the lower extremities. They also occur in the abdominal and thoracic walls, but rarely in the head and neck. We experienced a case of synovial sarcoma of the rib in 17-year -old woman. We performed on bloc chest wall resection including the right second rib tumor, fi st and third ribs. The postoperative course was uneventful. She received chemotherapy because of a relapse of the tumor in sternum and both lung during follow-up.

• The Journal of the Korean bone and joint tumor society
• /
• v.16 no.2
• /
• pp.87-90
• /
• 2010

Enchondroma is a benign tumor mainly developed in the hand and uncommon in the foot. Even if it is in the foot, most are in the phalanges and distal metatarsals of the foot. Enchondroma in the calcaneus is very rare. A 44-year-old male suffered from left heel pain for several months, authors treated it with curettage and bone graft, it was histologically confirmed as an enchondroma in the calcaneus. The authors presented a rare case presentation of an enchondroma in the calcaneus with pain.

• The Journal of the Korean bone and joint tumor society
• /
• v.13 no.2
• /
• pp.119-123
• /
• 2007

Giant cell reparative granuloma (GCRG) is an uncommon benign lesion that is most commonly found in the mandible and maxialla, and is a very rare condition in finger. We report an unusual case of GCRG arising in the index finger of a 21-year-old man. Histology was characteristic of giant cell reparative granuloma.

• The Journal of the Korean bone and joint tumor society
• /
• v.8 no.2
• /
• pp.39-42
• /
• 2002

We present a case of the patient with early detection of entrapment of inferior branch of the suprascapular nerve caused by multiple ganglion cysts at the spinoglenoid notch of the scapula, recovering from hypotrophy of the infraspinatus muscle and treating successfully after surgical removal of the cysts, and decompression of the nerve.

• Journal of Korean Foot and Ankle Society
• /
• v.21 no.4
• /
• pp.170-173
• /
• 2017

Soft tissue tumors of the foot have a low incidence rate, and most of them are symptom free, thus it is difficult to diagnose accurately. Herein, we report a 15-year-old male patient who had swelling without pain on the lateral margin of both feet. We performed excisional biopsy of the abductor digiti minimi via subtotal resection, following radiograph and magnetic resonance imaging. According to the histological analysis, hypertrophy of abductor digiti minimi was positive, and other soft tissue tumors were negative. Six months after the operation, normal appearance of both feet was maintained and the patient was satisfied with the result.

• Journal of Korean Foot and Ankle Society
• /
• v.15 no.2
• /
• pp.58-61
• /
• 2011

Morton's neuroma is a common cause of forefoot pain, and is also known to be a entrapment neuropathy rather than a true tumor. Precise physical examination is necessary to differentiate from other diagnoses of similar symptoms. If proper conservative treatment modalities fail for this neuritis, neurectomy of interdigital nerve is generally performed, with the results of up to 80% of patient's satisfaction. However the failure rate of 2% to 35% should be improved by proper diagnosis and careful surgery.