Cases reported "Osteoma, Osteoid"

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1/454. Osteoid osteoma of the vertebral body: a clinical case.

    The authors describe a case of lumbar vertebral osteoid osteoma localized in the body of L5 characterized by a very subtle clinical onset (limping as a result of poor positioning of the hip), and by a clinical course where pain was totally absent. ( info)

2/454. Transiliac exposure of the sacrum: a new surgical approach.

    biopsy or surgical approach of the midsacrum is difficult from the anterior, posterior, or superior approaches. I describe a lateral approach removing a piece of posterior ilium and entering the midsacrum through the sacroiliac joint. The approach was successfully used in an 8-year 7-month-old girl for the removal of an osteoid osteoma. The patient was monitored for 9 years 6 months until skeletally mature (age 18 years 1 month). This approach is applicable for biopsy or removal of benign tumors in the midsacrum in adults. Some developmental asymmetry of the pelvis may develop if it is used in children. ( info)

3/454. Painless osteoid osteoma in a metacarpal.

    Osteoid osteoma is a benign primary tumour of bone occurring in the first two decades of life. It presents with pain and is uncommon in the hand, particularly so in the metacarpals. We report a painless osteoid osteoma affecting a metacarpal. ( info)

4/454. Doppler duplex color localization of osteoid osteomas.

    We present two cases of osteoid osteoma in adolescent boys. The lesions were located in the proximal metaphysis of the right tibia and left femoral diaphysis respectively. Doppler duplex color study demonstrated clearly the highly vascular nidus and its feeding artery in one case and only the feeding artery in the second. We believe these are the first descriptions of osteoid osteomas assessed with Doppler duplex color, which was also used as guidance for the percutaneous localization and biopsy. ( info)

5/454. Occipital pain in osteoid osteoma of the atlas. A report of two cases.

    STUDY DESIGN: Two cases of occipital pain caused by an osteoid osteoma of the atlas are presented. OBJECTIVES: To describe the management of occipital pain in two young patients. SUMMARY OF BACKGROUND DATA: Osteoid osteoma is a benign lesion mostly affecting the long bones. A spinal location is uncommon. To the authors' knowledge, there are only five other reports of an osteoid osteoma located in the atlas. methods: Occipital headache, which was relieved by salicylates, was the major symptom reported by the two adolescents. In the first patient, a lesion of C1 was seen on plain radiographs. In the second patient, the diagnosis of osteoid osteoma was suggested by scintigraphic imaging and subsequently by computed tomography. RESULTS: pain disappeared in both cases after surgical excision of the lesion. Histologic examination disclosed characteristic features of osteoid osteoma. CONCLUSIONS: Occipital pain in adolescents, which is relieved by aspirin, should raise suspicion about the possibility of an osteoid osteoma of the atlas. If standard cervical spine radiographs are negative, isotope scanning and computed tomography can help to establish the diagnosis. Complete excision eliminates the lesion and produces immediate relief for the patient. ( info)

6/454. role of radionuclide imaging in osteoid osteoma.

    Radiophosphate bone scans readily disclosed osteoid osteomas in 20 symptomatic patients, including nine patients whose radiographic findings had been negative. In five of the nine patients adjuvant radiogallium imaging was performed, and four showed a disproportionately low uptake relative to radiophosphate. When this occurs, osteoid osteoma can be distinguished from subacute osteomyelitis, which is particularly helpful if the radiograph is equivocal. Radiophosphate bone imaging's generally accepted excellent sensitivity in disclosing obscure symptom-producing focal bone disorders makes it the screening procedure of choice, especially if osteoid osteoma is considered in the differential diagnosis. Only abnormal areas need to be radiographed to add specificity and more precise delineation. ( info)

7/454. Unusual manifestation of an osteoid osteoma of the capitate.

    A case of osteoid osteoma of the capitate in a 29-year-old male is reported. The patient suffered from unspecific clinical findings and a 3-year history of uncharacteristic wrist pain. Conventional radiographs of the wrist revealed a circumscribed sclerosis in the proximal part of the capitate bone beside a diffuse demineralisation of the carpal bones. magnetic resonance imaging demonstrated a circumscribed, tumorous lesion with marked enhancement after IV administration of contrast agent and a highly calcified nidus, which was sharply demarcated by a small rim of granulation tissue from the surrounding spongious bone. Based on MRI findings, the diagnosis of an osteoid osteoma was established and confirmed after operation and histologic analysis. ( info)

8/454. Osteoid osteoma of the lateral talar process presenting as a chronic sprained ankle.

    Pathologic conditions of the lateral talar process may be difficult to diagnose using physical examination and roentgenographs. A computed tomography scan of the hindfoot is often useful to define lesions of the lateral process. We report a case of osteoid osteoma of the lateral talar process that defied diagnosis for 4 years. The patient had an antecedent history of an inversion injury, which had been treated as a chronically painful sprained ankle without resolution of symptoms. The tumor was ultimately identified on a computed tomography scan, best seen on a coronal section through the talus. The patient had complete relief of pain after excisional biopsy of the tumor. ( info)

9/454. Osteoid osteoma of the elbow: a diagnostic challenge.

    BACKGROUND: Osteoid osteoma is a painful benign neoplasm that is rarely found in the elbow region. methods: The study included fourteen patients, and we believe that this is the largest reported series of patients with osteoid osteoma of the elbow evaluated at one institution. Most of the patients had had symptoms for a prolonged period and had had multiple invasive procedures before an accurate diagnosis was made. Although findings on physical examination generally are nonspecific and are not always accurate in localizing the lesion, plain tomograms and computed tomography scans were most helpful in identifying the nidus in the present study. Thirteen of the patients had limited motion of the elbow before the definitive diagnosis was made, and ten of these thirteen had a mean flexion contracture of 38 degrees. RESULTS: Removal of the nidus resulted in relief of pain and improvement in the range of motion of the elbow in all fourteen patients. A persistent postoperative flexion contracture was more common in the patients who had had a previous arthrotomy of the elbow than in those who had not had that procedure. CONCLUSIONS: It is important to recognize this uncommon entity to avoid the morbidity associated with a prolonged delay in diagnosis. Because the symptoms resolve after excision of the lesion, the surgeon can avoid unnecessary soft-tissue dissection and release of the contracture. ( info)

10/454. The natural history of osteoid osteoma.

    A long-term follow-up of three patients suffering from osteoid osteoma who have not undergone surgery is reported. Only eight similar cases have been reported in the literature. It is shown that over a period of years the pain of osteoid osteoma eventually disappears but the radiological appearance may remain unaltered or gradually resolve. Surgical management of osteoid osteoma is advised because of the prolonged symptoms. ( info)
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