Cases reported "fractures, spontaneous"

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1/631. Oncogenic osteomalacia presenting as bilateral stress fractures of the tibia.

    We report on a patient with bilateral stress fractures of the tibia who subsequently showed classic biochemical features of oncogenic osteomalacia. Conventional radiographs were normal. MR imaging revealed symmetric, bilateral, band-like low-signal lesions perpendicular to the medial cortex of the tibiae and corresponding to the only lesions subsequently seen on the bone scan. A maxillary sinus lesion was subsequently detected and surgically removed resulting in prompt alleviation of symptoms and normalization of hypophosphatemia and low 1,25-(OH)2 vitamin D3. The lesion was pathologically diagnosed as a hemangiopericytoma-like tumor. patients with oncogenic osteomalacia may present with stress fractures limited to the tibia, as seen in athletes. The clue to the real diagnosis lies in paying close attention to the serum phosphate levels, especially in patients suffering generalized symptoms of weakness and not given to unusual physical activity. ( info)

2/631. Neurological complications in insufficiency fractures of the sacrum. Three case-reports.

    Three cases of nerve root compromise in elderly women with insufficiency fractures of the sacrum are reported. Neurological compromise is generally felt to be exceedingly rare in this setting. A review of 493 cases of sacral insufficiency fractures reported in the literature suggested an incidence of about 2%. The true incidence is probably higher since many case-reports provided only scant information on symptoms; furthermore, sphincter dysfunction and lower limb paresthesia were the most common symptoms and can readily be overlooked or misinterpreted in elderly patients with multiple health problems. The neurological manifestations were delayed in some cases. A full recovery was the rule. The characteristics of the sacral fracture were not consistently related with the risk of neurological compromise. In most cases there was no displacement and in many the foramina were not involved. The pathophysiology of the neurological manifestations remains unclear. We suggest that patients with sacral insufficiency fractures should be carefully monitored for neurological manifestations. ( info)

3/631. adult onset of multifocal eosinophilic granuloma of bone: a long-term follow-up with evaluation of various treatment options and spontaneous healing.

    We report a case of multifocal-monosystemic Langerhans cell histiocytosis (LCH), formerly usually referred to as eosinophilic granuloma (EG) of bone. The condition developed in a 36-year-old man. A notable infrequent thoracic spine location and two successive distinct costal lesions were observed. Both the first costal site and the vertebral location healed spontaneously; the second costal lesion underwent biopsy resection. The patient's disease course with an 8-year follow-up is discussed with reference to various treatment options, emphasising in selected cases a watchful conservative approach, in view of the widely documented potential for spontaneous healing. ( info)

4/631. Pathological fracture of a lumbar vertebra caused by rheumatoid arthritis--a case report.

    We describe a case of rheumatoid arthritis (RA) with collapse of the L3 lumbar vertebra for which surgery was performed. The pathogenesis of lumbar lesions affected by RA is discussed and the literature reviewed. ( info)

5/631. Unusual longitudinal stress fractures of the femoral diaphysis: report of five cases.

    We present five cases of a distinctive type of longitudinal stress fracture of the upper femoral shaft in which the fracture line is parallel to the outer surface of the bone, in contrast to the perpendicular orientation to the cortical surface in previously reported cases of diaphyseal stress fractures. In two cases the fracture recurred after 15 and 18 months, respectively. ( info)

6/631. Ewing's sarcoma recurrence vs radiation necrosis in dynamic contrast-enhanced MR imaging: a case report.

    PURPOSE: We report a case of Ewing's sarcoma in the right distal femur in a 6-year-old male to demonstrate how dynamic contrast-enhanced magnetic resonance imaging (DEMRI) findings predicted histopathology. MATERIALS AND methods: DEMRI was performed at presentation and during and after completion of chemotherapy and radiation therapy. Histopathologic studies were done at presentation, at 77 weeks (20 weeks after a pathological fracture), and from the en bloc resection at 104 weeks. RESULTS: DEMRI predicted the early tumor response, absence of tumor recurrence, presence of necrosis and lack of fracture healing, confirmed by histopathology. CONCLUSION: DEMRI is a clinically useful tool in managing Ewing's sarcoma. ( info)

7/631. Fatty infiltration of osseous structures: a long-term complication of oleothorax--case report.

    Thoracic imaging of a patient treated for pulmonary tuberculosis with oleothorax therapy before the antibiotic era demonstrated a rare complication. Gross invasion by lipid with subsequent pathologic fracture of the adjacent thoracic vertebra may give rise to symptomatic spinal cord compression. magnetic resonance imaging is a useful modality for help in diagnosing treatment complications of oleothorax. ( info)

8/631. Pathologic odontoid fracture and benign fibrous histiocytoma of bone.

    We present the case of a 44-year-old female patient, who sustained an odontoid fracture after a minor trauma (uncomplicated fall). The radiologic evaluation revealed a skeletal tumor of the second cervical vertebra together with a fracture line at the base of the odontoid process of the axis. The patient underwent surgery, the tumor was resected and the odontoid was stabilised using an autologous cortico-cancellous bone graft and a halo fixator. Histologic examination revealed benign fibrous histiocytoma, which is reported to be a very rare skeletal tumor. ( info)

9/631. Enchondroma as a cause of midfoot pain.

    Enchondroma is a common bone tumor of the foot. It is often reported in the phalanges and distal metatarsals. The authors, however, present a rare case study of two patients with enchodromas as the cause of midfoot pain. One case presented in the lateral cuneiform which to the authors' knowledge is the first reported case in the literature. Two cases are presented with their surgical management including autogenous calcaneal graft and follow-up. ( info)

10/631. Musculoskeletal manifestations of osteomalacia: report of 26 cases and literature review.

    OBJECTIVE: This study was undertaken to describe the musculoskeletal manifestations in a selected population of 26 patients with biopsy-proven osteomalacia (OM) and provide a literature update. methods: The 26 patients with biopsy-proven OM were selected from a total number of 79 patients who underwent anterior iliac crest biopsy. The diagnosis of OM was confirmed by the presence of an osteoid volume greater than 10%, osteoid width greater than 15 microm, and delayed mineralization assessed by double-tetracycline labeling. RESULTS: OM was caused by intestinal malabsorption in 13 patients, whereas six other patients presented with hypophosphatemia of different causes. Five elderly patients presented with hypovitaminosis D, and in two patients the OM was part of renal osteodystrophy. Twenty-three patients presented with bone pain and diffuse demineralization, whereas three other patients had normal or increased bone density. Characteristic pseudofractures were seen in only seven patients. Six of the 23 patients with diffuse demineralization had an "osteoporotic-like pattern" without pseudofractures. Prominent articular manifestations were seen in seven patients, including a rheumatoid arthritis-like picture in three, osteogenic synovitis in three, and ankylosing spondylitis-like in one. Two other patients were referred to us with the diagnosis of possible metastatic bone disease attributable to polyostotic areas of increased radio nuclide uptake caused by pseudofractures. Six patients also had proximal myopathy, two elderly patients were diagnosed as having polymalgia rheumatica, and two young patients were diagnosed as having fibromyalgia. One of the patients who presented with increased bone density was misdiagnosed as possible fluorosis. CONCLUSION: OM is usually neglected when compared with other metabolic bone diseases and may present with a variety of clinical and radiographic manifestations mimicking other musculoskeletal disorders. ( info)
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