• 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.9 no.1
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• pp.110-114
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• 2003

Chondromyxoid fibroma is a benign tumor in adolescents and young adults. The most common location of the tumor is the proximal one-third of the tibia. Chondromyxoid fibroma accounts for less then 1% of all bony neoplasms and foot is affected in about 20% of all cases. The authors have described a case of chondromyxoid fibroma of the first metatarsal which had been recurred 7 months after curettage and iliac bone graft. En bloc resection and reconstruction of the metatarsal with autogenous iliac bone graft were performed. The results were satisfactory and the patient was free of local recurrence at two years follow-up.

• Journal of Medicine and Life Science
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• v.15 no.1
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• pp.27-30
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• 2018

Osteoid osteoma is a benign bone tumor composed of osteoid and atypical bone. The most commonly known sites of following tumor are long tubular bones, especially femur and tibia. Yet, development of osteoid osteoma in the foot is unusual, and there aren't much reported literatures of metatarsal osteoid osteoma. In this article, we report a case of the osteoid osteoma in the 3rd metatarsal bone of a 14-year-old male patient.

• The Journal of the Korean bone and joint tumor society
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• v.10 no.1
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• pp.45-49
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• 2004

Chondroblastoma is a benign chondroid-forming tumor usually originating in the epiphysis. The base of metatarsal bone contains neither an epiphysis nor a secondary ossification center and so is the rare site of chondroblastoma. Here, we present a case of chondroblastoma of the base of fifth metatarsal bone in 34-year-old man. Histologically, the osteoclast-like giant cells were abundant enough to simulate a giant cell tumor. And the chondroid intercellular matrix was intermixed but scanty. However, the background mononuclear cells showed irregular and indented nuclei with longitudinal clefts and positive immunoreactivity for S-100 protein, as the evidence of chondroblasts.

• Journal of Korean Foot and Ankle Society
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• v.24 no.4
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• pp.156-160
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• 2020

Malignant peripheral nerve sheath tumors (MPNSTs) usually arise in soft tissues; they are rarely found in the bone. This paper reports a case of MPNST in the foot and ankle joint involving the distal tibia, talus, calcaneus, navicular, medial intermediate, and lateral cuneiform, cuboid, and 2nd to 4th metatarsal bone. Palliative treatment was performed. The authors encountered a patient with intraosseous MPNST of the midfoot who presented with nonspecific clinical and radiologic findings. This case shows that a high index of suspicion and a histopathology examination, including immunohistochemistry, will be necessary for an accurate diagnosis.

• Journal of Korean Foot and Ankle Society
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• v.5 no.1
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• pp.86-90
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• 2001

Intra-osseous ganglion is an uncommon benign bone tumor caused by an intramedullary metaplastic event. Two cases of the intraosseous ganglion of the foot are presented; one in the metatarsus and the other in the talus. Follow-up averaged 14 months. Satisfactory results were obtained with curettage, cancellous bone graft from the ipsilateral calcaneus. No recurrence and complications occurred during the period of follow-up.

• The Journal of the Korean bone and joint tumor society
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• v.14 no.2
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• pp.152-156
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• 2008

Osteochodromas are the most common benign osseous neoplasm, covered by a distinct hyaline cartilage cap, originating from the physis. They involve typically metaphyseal or metadiaphyseal region of a long bone, while they involve the foot rarely. In the foot, the osteochondromas mostly occur in short tubular bones such as metatarsal bones and phalanges. They are seldom found in calcaneus. We report a rare case of osteochondroma involving calcaneus.

• Journal of Korean Foot and Ankle Society
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• v.10 no.1
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• pp.113-116
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• 2006

Benign and malignant tumors are found in the foot, although the incidence is low. The most common bone tumor in the foot is osteochondroma, which is thought to develop in bones that form through the process of enchondral ossification. In particularly, osteochondromas in the foot mostly occur in metatarsal bones and phalanges. It is seldom found in talus. It is usually confused with osteophyte or enthesis. We report an osteochondroma case confirmed by roentgenographical and pathological investigation, after removing the masses form bilateral tali of a 19-year-old male patient presented with bilateral ankle joint pain for three years.