Osteochondroma is the most common of the benign bone tumors. They are probably developmental malformations rather than true neoplasms. But rarely they develope in a joint, especially in the ankle joint. We reported a case of intraarticular osteochondromatosis of ankle joint.
Ankle Joint ; Ankle ; Joints ; Osteochondroma ; Osteochondromatosis

No abstract available.
Osteochondroma*

No abstract available.
Osteochondroma*

No abstract available.
Osteochondroma*

No abstract available.
Osteochondroma*

Osteochondroma is a common bone tumor but a rare tumor in the rib. It is often asymptomatic and observed incidentally. This is a case report of a 49-year-old woman with an osteochondroma mimicking a mediastinal mass in hereditary multiple exostoses. The chest X-ray and computed tomography (CT) scans revealed the bony density feature of the mass. Surgical excision confirmed that the lesion was an osteochondroma.
Exostoses, Multiple Hereditary ; Female ; Humans ; Middle Aged ; Osteochondroma ; Ribs ; Thorax

Osteochondroma, the most frequent benign bone tumor, is composed of trabecular bone covered with a hyaline cartilage cap. It is well known that multiple osteochondromatosis may undergo malignant change. Such sarcomatous change usually present with the form of chondrosarcoma, and transformation to other malignancy is extremely rare. This report describes one case of osteosarcoma arising in patients who had multiple osteochondromatosis, and includes brief review of the literatures.
Chondrosarcoma ; Exostoses, Multiple Hereditary* ; Humans ; Hyaline Cartilage ; Osteochondroma ; Osteosarcoma*

PURPOSE: To analyze clinical, radiological and pathological features as well as clinical outcome after surgical treatment of patients with secondary chondrosarcoma arising from osteochondroma(tosis). MATERIALS AND METHODS: We retrospectively reviewed clinical records, radiographs, pathologic slides of 14 patients. Nine patients were male and five were female. The mean age was 34 years. The mean follow-up period was 54 months. RESULTS: All patients had a history of previous mass since childhood or puberty. Preexisted osteochondroma was single in 3 patients and multiple in 10. Remaining 1 patient had multiple osteochondromatosis with enchondromatosis. MRI clearly provided thickness of cartilage cap, which was over 2 cm except in 2 cases. Chondrosarcoma was grade 1 in all except 1 case, which was grade 2. Wide excision was performed in 10 patients, marginal excision in 3 and amputation in 1. Twelve patients were doing very well without evidence of disease. Among 3 patients with marginal excision, 1 patient had local recurrence and 1 patient died of disease. CONCLUSION: Comprehensive understanding of clinical, radiological and pathological features of secondary chondrosarcoma is warranted for accurate diagnosis. The best result can be expected with early recognition of malignant change of osteohcondroma(tosis) and wide excision.
Amputation ; Cartilage ; Chondrosarcoma ; Enchondromatosis ; Female ; Follow-Up Studies ; Humans ; Male ; Osteochondroma ; Osteochondromatosis ; Puberty ; Recurrence ; Retrospective Studies

PURPOSE: To assess the MR findings of symptomatic osteochondromas. MATERIALS AND METHODS: We evaluated 31patients who between July, 1994 and May, 1997 underwent MR imaging for symptomatic osteochondroma. Fourteen were males and 17 were females, and their ages ranged from 8 to 49(mean, 23) years. Using T1WI, T2WI andgadolinium-DTPA-enhanced T1WI, images were analysed according to signal intensity in the osseous component of theosteochondroma, thickness of the cartilage cap, and associated change in surrounding soft tissue. RESULTS:Clinical manifestations included a palpable mass or tendency to grow(n=22) and pain on movement(n=9).Complications were of three types : that which followed change in the osseous component of the tumor, associatedchange in surrounding soft tissue, and malignant transformation. In the osseous component, bone marrow edema orcontussion was seen in 21 cases(67.7%), and in two(65%), fracture was observed. In surrounding soft tissue, muscleimpingement was seen in 21 cases(67.7%), bursitis was in 7 cases(22.6%), tenosynovitis in seven(22.6%), andvascular compression in five(16.1%). In three cases(9.7%), thansformation to chondrosarcoma had occurred ; two ofthese were derived from osteochondromatosis and one from a single osteochondroma. The thickness of the cartilagecap was as follows : <5mm(n=16), 5-10mm(n=12), and > 10mm(n=3). CONCLUSION: In patients with symptometicosteochondroma, MR imaging is useful for detecting both complications and malignant transformation.
Bone Marrow ; Bursitis ; Cartilage ; Chondrosarcoma ; Edema ; Female ; Humans ; Magnetic Resonance Imaging* ; Male ; Osteochondroma* ; Osteochondromatosis ; Tenosynovitis

Cervical cord compression due to osteochondroma in hereditary multiple exostosis (HME) is a rare condition, especially in young children. In this report, we discuss a rare case of cervical osteochondroma presenting as Brown-Sequard syndrome (BSS) in a 7-year-old boy with HME. The child was admitted because of hemiparesis involving the right limbs and hypoesthesia on the left side following mild trauma. MR image revealed cord compression by osteochondroma of the C7 lamina. We removed the osteocondroma and the neurological deficit was improved.
Brown-Sequard Syndrome ; Child ; Exostoses, Multiple Hereditary ; Extremities ; Humans ; Hypesthesia ; Osteochondroma ; Paresis