Cases reported "Periostitis"

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1/55. Mesomelic dysplasia with periosteal thickening, radio-humeral dislocation, osteoporosis and multiple fractures.

    We report a boy with a new form of mesomelic dysplasia characterised by short stature, multifocal periosteal thickening, radio-humeral dislocation, osteoporosis and multiple fractures with minimal trauma. electrophoresis of fibroblast collagens detected defects in type III and type V collagen. CONCLUSION: Bone dysplasias presenting with osteopenia, abnormal trabecular pattern, bone fragility, and periosteal thickening suggest a collagenopathy. A possible collagen defect requires biochemical investigations.
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2/55. Florid reactive periostitis of the middle phalanx: a case report and review of the literature.

    Florid reactive periostitis is an uncommon bone lesion that occurs most often in the phalanges of the hands and feet. Histologic evaluation is commonly required to distinguish this benign lesion from clinically indistinguishable malignant and infectious etiologies. While the lesion is typically self-limiting or cured by simple excision, we report a case of aggressive recurrence following an excisional biopsy that ultimately led to ray amputation.
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3/55. Juxtacortical osteosarcoma. A distinct malignant bone neoplasm.

    The purpose of this report is the study of a malignant bone tumor of similar histological picture with conventional (intramedullary) osteosarcoma. Contributing factors in the study of juxtacortical osteosarcoma are the clinical, X-ray and histologic pictures. A case of parosteal osteosarcoma in a 28-year-old male is reported. In conjuction with X-ray findings we review the histological characteristics of the tumor through serial sections of the peripheral, central and parosteal parts and the findings are described in detail. In addition to the histological findings, differential diagnosis and prognosis are also discussed. From the general study of the tumor it has been shown that juxtacortical osteogenic sarcoma behaves differently in contrast to classic osteosarcoma, depending on the degree of differentiation of the tumor.
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4/55. MR Imaging of sports-related pseudotumor in children: mid femoral diaphyseal periostitis at insertion site of adductor musculature.

    OBJECTIVE: The objective of this study was to review the imaging appearance of the femurs of five patients who had been referred from outside institutions after presenting with thigh pain and being given a preliminary diagnosis of primary malignant bone tumor. Typically, when making a diagnosis, physicians place emphasis on the characteristic appearances of diseases on MR imaging, but such appearances may be misleading. An awareness of the specific MR imaging pattern of stress-related partial muscle avulsion can lead to the correct diagnosis. CONCLUSION: Femoral diaphyseal periostitis after a sports injury to the adductor musculature in children has a characteristic imaging appearance. This condition can initially appear to be misleadingly aggressive. knowledge of the findings-particularly of the findings on MR imaging-in the proper clinical setting can help physicians make the correct diagnosis and eliminate unnecessary biopsy or inappropriate treatment.
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5/55. Florid reactive periostitis and bizarre parosteal osteochondromatous proliferation: pre-biopsy imaging evolution, treatment and outcome.

    OBJECTIVE: To report on the imaging evolution of florid reactive periostitis (FRP) and bizarre parosteal osteochondromatous proliferation (BPOP) of the phalanges of the hands from prospective diagnosis to operation and on postsurgical outcome. DESIGN AND patients: Three patients (2 female, 1 male; age range 11-34 years) presented with a swollen digit of the hand. Following presumptive radiographic diagnosis of FRP, they were closely observed both clinically and radiographically until operation. All three patients had radiographs of the involved digit, and one patient had an MR imaging examination. The interval between presumptive diagnosis and operation ranged from 2 to 8 months. Following operation, the patients have been clinically followed for 9-13 months (mean 10 months). RESULTS: In each of the patients, maturing of periosteal reaction without bone destruction was observed within 1-2 weeks of the presumptive diagnosis of FRP. Periosteal reaction was initially minimal in relation to the extent of soft tissue swelling and subsequently became more florid. In one patient, the lesion ossified, became adherent to the phalanx, and had an "osteochondromatous" appearance. In another patient, periosteal reaction was seen on both sides of the phalanx with an intact phalanx. In the sole patient who had MR imaging, edema was seen in the phalanx distal to the symptomatic site and the metacarpal proximal to the symptomatic site. CONCLUSIONS: Close clinical and radiographic correlation permits an accurate pre-biopsy diagnosis of FRP. The first follow-up radiograph taken within 2 weeks usually provides re-assurance of the accuracy of the diagnosis. FRP may progress to BPOP. Arbitrary antibiotic treatment can be avoided, and a planned surgical approach can be adopted.
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6/55. Intramuscular haemangioma adjacent to the bone surface with periosteal reaction. Report of three cases and review of the literature.

    We present three cases of intramuscular haemangioma adjacent to bone in the lower limb. All patients had local pain during the third decade. Plain radiographs showed an irregular or hypertrophic periosteal reaction on the shaft of the fibula and an intramuscular mass adjacent to the bone with inhomogeneous high signal intensity on MRI. These lesions mimic periosteal or parosteal tumours.
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7/55. Severe toxic osteoblastoma of the humerus associated with diffuse periostitis of multiple bones.

    Toxic osteoblastoma is a rare variant of an uncommon primary bone tumour that has been described only once before in the world medical literature. It is characterised by systemic features including fever, weight loss and a striking diffuse periostitis in association with an osteoblastoma, resulting in delayed diagnosis. Early recognition of this condition could prevent inappropriate therapies and reduce morbidity.
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8/55. Bizarre parosteal osteochondromatous proliferation: case report and review of the literature.

    Bizarre parosteal osteochondromatous proliferation of bone (BPOP) is a benign lesion that is occasionally misinterpreted as a malignant process. The original reports described lesions exclusively in the hands and feet. However, subsequent reports have included additional sites in the long bones, skull, and maxilla. The differential diagnosis of BPOP includes numerous benign and malignant lesions. The benign differential diagnosis includes osteochondroma and reactive processes. The most important malignant differential diagnosis is parosteal osteosarcoma. We present a case of an 11-year-old boy with recurrent BPOP and review the literature. We discuss the differential diagnosis and pathogenesis of the lesion.
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9/55. Hypertrophic pulmonary osteoarthropathy without clubbing of the digits.

    Hypertrophic osteoarthropathy (HOA) typically occurs concurrently with clubbing of the digits, with isolated HOA being reported only rarely. We report two patients with intra-thoracic malignancy in whom HOA, demonstrated on bone scintigraphy, developed in the absence of clubbing. We also report the novel observation of involvement of the metatarsal and metacarpal bones by HOA.
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10/55. Orbital tuberculosis with abscess.

    The authors present a case of progressive unilateral proptosis caused by tuberculous osteoperiostitis of the orbital walls and sphenoid bone with extraconal orbital and extradural intracranial cold abscess formation. The patient responded well to surgical evacuation and antituberculous medical therapy.
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