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PubMedDate not supplied

Unicameral bone cysts: treatment with methylprednisone acetate injections.

Unicameral bone cysts have been treated by a variety of methods including nonoperative treatment, bone packing, and methylprednisone acetate injection. This article reviews the methods of treatment and classification of unicameral bone cysts. Three calcaneal unicameral bone cysts were injected with methylprednisone acetate and were followed for 8 to 32 months. Two unicameral bone cysts were unresponsive to methylprednisone acetate and were classified as "persistent." One unicameral bone cyst was moderately responsive and was classified as "incompletely resolved."

Adult↗
PubMed2002

Aneurysmal bone cyst of the orbit.

Aneurysmal bone cysts of the skull are rare, and orbital involvement of these cysts is even less frequent. We present CT, MR imaging, and histopathologic findings of an aneurysmal bone cyst of the orbit in a 13-year-old female adolescent. The tumor mainly involved the frontal bone. MR imaging findings of the aneurysmal bone cyst of the skull were highly suggestive of the diagnosis.

Adolescent↗
PubMed1984

Aneurysmal bone cyst of the rib.

Aneurysmal bone cysts are uncommon lesions, especially in the ribs. Four patients with aneurysmal bone cysts of the rib are presented and previously reported cases reviewed. A brief discussion of the clinical manifestations, pathology, aetiology, and current treatment of aneurysmal bone cyst is also included.

Adolescent↗
PubMed1985

Juxtaepiphyseal aneurysmal bone cyst.

Nine cases of aneurysmal bone cyst arising in juxtaepiphyseal locations with gross invasion of the adjacent growth plate are reported. In five of these patients an abnormality of growth, due to premature fusion of the affected growth plate, ultimately developed. Treatment of these lesions should attempt to avoid this complication, which appears to be more common than has been appreciated in the past. These nine cases represent 23% of 39 cases of aneurysmal bone cyst occurring in a long bone adjacent to an open epiphyseal plate. This series was extrapolated from a total of 198 cases of aneurysmal bone cyst in the files of the Istituto Ortopedico Rizzoli, Bologna, Italy.

Adolescent↗
PubMedDate not supplied

Aneurysmal bone cyst of the fibula.

Aneurysmal bone cysts are benign, expansile lesions that are not at all uncommon in the lower extremity. These lesions are difficult to recognize clinically. This paper is a thorough review of the current literature regarding aneurysmal bone cysts. After this review, one should be able to diagnose and appropriately treat aneurysmal bone cysts. Also provided is a case report with classic histologic, clinical, and radiographic findings that was treated by en bloc resection.

Adult↗
PubMed1982

Latent bone cyst as healing artifact. A case report.

The hemorrhagic bone cyst and the latent bone cyst are pathological conditions of unknown etiology occurring in the jaws. Hemorrhagic cysts are diagnosed radiographically and clinically, while latent bone cysts are often diagnosed on radiographical findings alone. In this paper, a case is described where a hemorrhagic bone cyst failed to heal completely after surgery and left a lesion resembling a latent bone cyst. This was probably caused by a defect of the lingual cortical plate first observed during surgical treatment. A tomogram subsequently revealed persistence of this lingual cortical defect. The case suggests that some lesions diagnosed as mandibular latent bone cysts may, in fact, be healing defects associated with pathological lesions having a defective lingual cortical plate.

Adolescent↗
PubMedDate not supplied

Unicameral bone cysts.

Unicameral, or solitary, bone cysts are unusual tumors seen in the ends of long bones in skeletally immature persons. The etiology of these lesions is poorly understood. Various hypotheses have included dysplastic processes, synovial cysts, and abnormalities in the local circulation. Most patients present with a nondisplaced pathologic fracture, but occasionally cysts are found incidentally. Plain radiographs typically show a symmetric lesion with cortical thinning and expansion of the cortical boundaries. Once diagnosed, unicameral bone cysts continue to be a treatment dilemma. Traditional methods, such as prednisolone therapy, usually involve multiple anesthetics and injections and are associated with high recurrence rates. Major surgical procedures, such as wide exposure, curettage, and bone grafting, may be somewhat more effective, but still carry with them significant morbidity and recurrence rates. Newer techniques involving percutaneous grafting with allograft or bone substitutes or a combination of the two are promising in light of their low complication rate and lower reoperation rate.

Anti-Inflammatory Agents↗
PubMed2004

Solid aneurysmal bone cyst of the mandible.

Aneurysmal bone cyst is a rare, rapidly expanding, locally destructive, and often misdiagnosed lesion. It accounts for about 1-2% of primary biopsied bone tumours. About 60-70 cases have been reported in the jaws; particularly the molar regions. Eighty percent of patients are under 20 years of age. Aneurysmal bone cyst exists as a primary or secondary lesion. It may be conventional (95%) or solid (5%). The solid variant is more difficult to recognize. The practical importance of aneurysmal bone cyst lies in the fact that it must be differentiated from malignant tumours: mainly with giant cell tumours and teleangiectatic osteosarcoma.

Bone Cysts, Aneurysmal↗
PubMed2003

Management strategy for unicameral bone cyst.

The management of a unicameral bone cyst varies from percutaneous needle biopsy, aspiration, and local injection of steroid, autogenous bone marrow, or demineralized bone matrix to the more invasive surgical procedures of conventional curettage and grafting (with autogenous or allogenous bone) or subtotal resection with bone grafting. The best treatment for a unicameral bone cyst is yet to be identified. Better understanding of the pathology will change the concept of management. The aim of treatment is to prevent pathologic fracture, to promote cyst healing, and to avoid cyst recurrence and re-fracture. We retrospectively reviewed 17 cases of unicameral bone cysts (12 in the humerus, 3 in the femur, 2 in the fibula) managed by conservative observation, curettage and bone grafting with open reduction and internal fixation, or continuous decompression and drainage with a cannulated screw. We suggest percutaneous cannulated screw insertion to promote cyst healing and prevent pathologic fracture. We devised a protocol for the management of unicameral bone cysts.

Adolescent↗
PubMed1977

Aneurysmal bone cyst of clavicle.

Two aneurysmal bone cysts are described. They presented difficulties in diagnosis because the patients were rather older than usual for this lesion and because of the uncommon location of the cysts. The nature of aneurysmal bone cysts is discussed.

Age Factors↗