Cases reported "Femoral Neoplasms"

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1/373. chondrosarcoma in a patient with McCune-Albright syndrome. Report of a case.

    A case of McCune-Albright syndrome with acromegaly and chrondrosarcoma is reported. The potential role of chronic growth hormone overproduction in the occurrence of malignant transformation and the possible value of bisphosphonates in the treatment of bone fibrous dysplasias are discussed.
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2/373. Synovial desmoplastic fibroblastoma of hip joint with bone erosion.

    A 78-year-old woman presented with pain at the left hip. Initial radiographs showed minimal age-related changes. Over the next 2 years she developed large erosions in the left femoral neck and proceeded to hip replacement. Histological examination showed bland spindle cells in a loose and hyalinised collagenous stroma considered to represent a desmoplastic fibroblastoma (collagenous fibroma). This is the first reported case of synovial desmoplastic fibroblastoma.
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3/373. Reconstruction of the hip abductors after resection of the proximal femur.

    Three patients with malignant bone tumors of the proximal femur underwent implantation of an endoprosthesis with reconstruction of the joint capsule and hip abductors using artificial mesh.
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4/373. Malignant fibrous histiocytoma after allogeneic bone marrow transplantation.

    A 24-year-old woman with CML underwent allogeneic BMT in August 1995 from a one-antigen HLA mismatched brother. Conditioning included BuCy2 and CsA and MTX were used to prevent GVHD. In July 1997 she developed right leg pain, lytic bone lesions of distal femur and a solid mass of soft tissue. Histological diagnosis of malignant fibrous histiocytoma was made. Despite treatment with surgery and chemotherapy (doxorubicin and ifosfamide), the patient died 1 year later with local recurrence of the tumor and liver, lung and brain metastases. The CML was in CR.
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5/373. chondroblastoma: an unusual cause of knee pain in the adolescent.

    chondroblastoma is a rare, benign bone tumor that may mimic an orthopedic infection. Characteristic clinical features include specific radiographic findings, predilection for the adolescent age group, and long bone epiphyseal involvement. This case of chondroblastoma is unusual because of aggressive findings on radiographic studies which underscore the need to obtain hip radiographs on adolescent patients with knee pain.
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6/373. The multiple sclerotic osteogenic sarcoma of early childhood.

    Two cases of sclerosing osteogenic sarcoma that occurred in early childhood are reported. They and the similar cases reviewed are unusual in their development at an unusually early age, their multicentric presentation and their densely sclerotic nature. These are uncommon manifestations of osteogenic sarcoma and are considered due to proliferative metastatic osteoid formation in areas of rapid bone growth.
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7/373. Subchondral metastasis: report of five cases.

    Subchondral metastasis is a rare occurrence and poses a diagnostic dilemma as initial films may show a lytic lesion in the subchondral region often misinterpreted as being benign. We present five cases of subchondral metastasis as well as a review of the literature. In our cases, we present subchondral metastasis in the elbow, shoulder, and hip joints. All patients had pain over the affected joint and most presented with a lytic lesion in the subchondral bone. Three patients have died since presentation and two are doing well at last follow up visit. Subchondral metastasis is a rare entity, but it should be included in the differential of a lytic lesion in the subchondral bone.
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8/373. Multiple occurrence of osteochondromas in dysplasia epiphysealis hemimelica.

    Dysplasia epiphysealis hemimelica was defined by Trevor (1950) as a rare congenital growth disorder of the tarsus and of the epiphysis of the long bone. In this report, a rare case of dysplasia epiphysealis hemimelica associated with multiple extraskeletal osteochondromas is presented. Although different modes of expression of the same pathologic process have been suggested for dysplasia epiphysealis hemimelica and osteochondroma, the biological feature of cartilaginous overgrowth in the skeletal system still seems unclear.
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9/373. Metastatic bone tumor mimicking spontaneous osteonecrosis of the medial condyle of the femur: misleading appearance on MR imaging.

    We report a case of a metastatic bone tumor that mimicked spontaneous osteonecrosis of the medial condyle of the femur on magnetic resonance imaging.
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10/373. Reactivation of tumor after 19 years? A case of local recurrence in clear cell chondrosarcoma.

    Local recurrence of a clear cell chondrosarcoma of bone is reported arising 19 years after resection of the original tumour.
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