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PubMedDate not supplied

Aneurysmal bone cyst of the second metatarsal.

Aneurysmal bone cyst of the second metatarsal has infrequently been reported in the literature. Its characteristics can mimic various other bone tumors. While radiographic appearance usually typifies this lesion, microscopic evaluation is paramount for a definitive diagnosis. There are various treatment alternatives for this lesion depending on size, the patient's age and radiographic appearance. After evaluating the patient's age and size of lesion in their case study, the authors recommended total excision of the bone cyst with autogenous grafting. The need for rigid external fixation was emphasized. These factors combined to produce satisfactory results in this case study that involved over 2 years of postoperative evaluation.

Bone Cysts↗
PubMed1993

Aneurysmal bone cyst of the upper maxilla.

Aneurysmal bone cyst is a nosologic entity of low frequency that appears with greater incidence in large bones. Its presence in the upper maxilla is very rare, even more so in a thirteen year old boy. The author presents the case of an aneurysmal bone cyst of the upper maxilla, together with its investigations and the surgical treatment practiced in 1987. A comment is added on the surgical technique he might adapt nowadays for approaching this type of tumors.

Adolescent↗
PubMed1978

Aneurysmal bone cysts of the spine.

Aneurysmal bone cysts are uncommon lesions, especially in the spine. Seventy-eight cases have been previously documented in the English literature and an additional fourteen cases are now reported. There is a definite predilection for the lumbar region and the neural arch is the part of the vertebra most commonly affected. It is recommended that treatment should consist of total excision or when this is not possible, curettage. Radiotherapy should be reserved for those few cases where operation is inadvisable.

Adolescent↗
PubMedDate not supplied

Percutaneous reaming of simple bone cysts in children followed by injection of demineralized bone matrix and autologous bone marrow.

The authors report the successful treatment of 19 patients (mean age 10 years) with active unicameral bone cysts using a combination of percutaneous reaming and injection of a mixture of demineralized bone matrix and autologous bone marrow. Follow-up ranged from 12 to 42 months (mean 28 months). All patients were asymptomatic at the latest follow-up. Two required a second intervention to accomplish complete cyst healing. Radiographic outcome was improved in all patients according to the Neer classification at the latest follow-up. There were no significant complications related to the procedure, nor did any fracture occur after initiation of the above regimen.

Adolescent↗
PubMed1989

Aneurysmal bone cysts of the dorsal spine.

Aneurysmal bone cyst is an uncommon but interesting condition, more so when it involves the vertebrae. Three cases of aneurysmal bone cysts of the dorsal spine, suspected on clinicoradiological findings and confirmed by histopathology, are reported in this paper. The authors believe that when the disease affects the pedicles or transverse processes of a vertebra, the plain roentgenographic findings are quite typical of the disease, and a confident radiological diagnosis is possible in the majority of cases.

Adult↗
PubMed2001

Aneurysmal bone cyst of the sphenoid sinus.

Aneurysmal bone cysts of the sphenoid sinus are very rare, with only six cases described in the literature. We present a case of an aneurysmal bone cyst of the sphenoid sinus with associated fibrous dysplasia in which the radiological findings had some features of a mucocoele. We discuss the differences in pathogenesis, clinical presentation and radiological appearances between these two lesions, and propose a simple drainage procedure as an effective modality of treatment.

Adult↗
PubMed1990

Subchondral bone cysts of the phalanges.

Subchondral phalangeal bone cysts frequently are encountered when reviewing foot x-rays. Radiologically, these lesions appear as a focus of subchondral radiolucency surrounded by a rim of sclerotic bone. Radiologic and histologic examinations demonstrate that these lesions are identical to the subchondral bone cysts associated with osteoarthritis of the hip and the more recently described cysts of the hallucal sesamoids and the head of the first metatarsal.

Bone Cysts↗
PubMed1997

Epiphyseal extension of a unicameral bone cyst.

Epiphyseal extension of a unicameral bone cyst is rare. We report a case of a 13-year-old boy with three pathological fractures through a unicameral bone cyst with epiphyseal involvement in the proximal humerus. These lesions initially tends to expand the humeral epiphysis laterally and progress medially. They also commonly cause a slip of the epiphysis in a medical direction. They also have a greater association with growth retardation and lesser degree of recurrence than their metaphyseal counterpart.

Adolescent↗
PubMed1990

Aneurysmal bone cyst of the mandible--a case report.

Aneurysmal bone cysts originating in the craniofacial region have seldom been reported in Taiwan. A case of aneurysmal bone cyst arising in the right mandible of a 15-year-old Chinese boy was presented with both the roentgenographic and microscopic findings. In view of the high recurrent rate and the large destructive mandibular lesion, segmental resection with immediate bone grafting for reconstruction and a conscientious follow up regimen was employed. The etiology and pathogenesis of this interesting lesion remained unclear but several theories were reviewed and the differential diagnosis of this lesion was also discussed. Furthermore, immunoperoxidase staining for Factor VIII related antigen was performed to help differentiate between the aneurysmal bone cyst and a central hemangioma and then to elucidate the pathogenesis of the former.

Adolescent↗
PubMed2004

Solid variant of aneurysmal bone cyst of the cervical spine.

STUDY DESIGN: A case of the solid variant of aneurysmal bone cyst affecting the posterior component of the fourth cervical vertebra is reported. Imaging studies showed an expansile destructive lesion. After curettage, autologous iliac bone grafting with posterior fusion was performed. There was no sign of local recurrence 2 years after surgery. OBJECTIVES: To emphasize the occurrence of the solid variant of aneurysmal bone cyst in the cervical spine. SUMMARY OF BACKGROUND DATA: The solid variant of aneurysmal bone cyst is rare, and only 12 cases occurring in the vertebrae, including 3 in the cervical vertebrae, have been reported. The condition is difficult to diagnose radiologically before biopsy or surgery. METHODS: A 9-year-old girl presented with pain in the nape of the neck without any neurologic deficit. She was found to have the solid variant of aneurysmal bone cyst in the posterior component of the fourth cervical vertebra, which had destroyed the lamina and spinous process. Part of the posterior aspect of the C4 vertebral body was also involved. Curettage of the lesion was performed, and the defect in the posterior component of the vertebra was reconstructed using an autologous iliac bone graft with posterior fusion using a halo vest. RESULTS: Magnetic resonance imaging disclosed a homogeneous low intensity mass at the lamina, spinous process, and vertebral body of C4 on T1-weighted images. The mass showed heterogeneous high signal intensity on Gd-enhanced images. Histologically, the resected specimen showed predominant fibroblastic proliferation, with minor foci of reactive osteoid formation and an area of osteoclast-like giant cells. Neither cellular atypia nor mitotic figures were evident. There was no sign of local recurrence 2 years after surgery. CONCLUSIONS: The solid variant of aneurysmal bone cyst should be included in the differential diagnosis of any lytic expansile lesion of the spine, even though it is a destructive lesion. Gd-enhanced magnetic resonance imaging may be helpful for distinguishing the solid variant from conventional aneurysmal bone cyst.

Bone Cysts, Aneurysmal↗
PubMed2005

[Vertebral aneurysmatic bone cyst: study of three cases].

Aneurysmatic bone cyst is a hypervascularized, benign lesion locally destructive by its progressive growth with greater incidence in the second decade of life. It lodges preferably in the long bones and vertebrae. The clinical picture varies from pain to local edema and even neurological symptoms when in vertebral location. Three cases of vertebral aneurysmatic bone cyst occurring in childhood and all with neurologic deficit symptoms are described. Computerized tomography and/or magnetic resonance imaging confirmed the diagnosis. Patients underwent surgery to remove the tumor. In one of the cases, pre-operative selective arterial embolization of the lesion was performed. The three patients progressed satisfactorily with neurological improvement, which demonstrated the efficiency of the microsurgical technique for the resection of the spinal tumor. The evolution of the cases and the current treatment are discussed.

Adolescent↗
PubMed1996

Complex cytogenetic rearrangement in a case of unicameral bone cyst.

Cytogenetic analysis of a unicameral bone cyst surgically resected in an 11-year-old boy revealed a highly complex clonal structural rearrangement involving chromosomes 4, 6, 8, 16, 21, and both 12. These findings reinforce the need for further studies on unicameral bone cysts to verify the frequency and to understand the significance of chromosome anomalies in this type of lesion.

Bone Cysts↗
PubMed1996

[An innocent bone cyst in the proximal humerus].

We discuss four cases of bone cyst in the proximal humerus, in two boys aged 8 and 9, and two girls aged 2 and 5. Differentiation between a solitary and an aneurysmatic bone cyst can be difficult. The bone cyst in the proximal humerus is mostly benign. In one case (the 2-year-old girl) a malignancy, a telangiectatic osteosarcoma, was observed after 2-5 years follow-up. Humerus resection was performed.

Bone Cysts↗
PubMedDate not supplied

Aneurysmal bone cyst of the sphenoid sinus.

Aneurysmal bone cyst is now recognized as a distinct clinicopathologic entity. It has characteristic clinical, radiologic, and pathologic feactures. The two modalities of treatment are surgical resection or curettage and radiotherapy: recurrence rates with each modality are discussed. A case report of an aneurysmal bone cyst presenting in the sphenoid sinus and treated with the compbined modalities of irradiation and surgical curettage is presented.

Adult↗
PubMedDate not supplied

Aneurysmal bone cyst of the sphenoid in a child.

The aneurysmal bone cyst is a vascular lesion which destroys and expands bone. We report a case of an aneurysmal bone cyst of the sphenoid sinus which resulted in loss of vision due to compression of the optic chiasm. Staged intracranial and extracranial procedures were used to remove the lesion. Aneurysmal bone cysts are very rare in the sphenoid sinus, and this is the first reported case occurring at that site in a child.

Aneurysm↗
PubMed1975

An unusual case of 'haemorrhagic' bone cyst.

An unusual case of hemorrhagic bone cyst observed over a period of 12 years is presented. The diagnosis was confirmed by surgical exploration and histological examination of the tissue. The lesion continued to expand in spite of repeated surgical mandible. Finally, bone formation obliterated the cavity completely at the age of 19, when the facial deformity was corrected. It is suggested that this hemorrhagic bone cyst is of developmental origin. Since intramedullary haemorrhage and proliferation of giant cells are both responsible for the cavity formation and expansion, it is possible that aberrant formation of giant cells by fusion of endothelial cells of abnormal blood vessels may be an important factor in the pathogenesis of this condition.

Adolescent↗
PubMedDate not supplied

Embolization in the treatment of aneurysmal bone cysts.

Eight patients with aneurysmal bone cysts (ABC) were treated with selective embolization as an adjunct to curettage and bone graft in seven cases and as the definitive procedure in the remaining case. The age range was 5-23 years. Symptoms had been present for an average duration of 6 months. The lesions were located in the femur (three), the shoulder girdle (three), the tibia (one), and the pubis (one). Two patients had recurrent lesions, and six were primary. Average follow-up was 3 years (2-4.6 years). There were no recurrences and no complications related to embolization. All lesions ossified including the pubic lesion, which was treated with embolization alone. One patient with an ABC adjacent to the distal femoral physis had growth disturbance and a second who had an extensive acromial lesion had mild degenerative changes of the acromioclavicular joint.

Adolescent↗
PubMed2003

Aneurysmal bone cysts of the sacrum. Clinical report and review of the literature.

BACKGROUND: Aneurysmal bone cysts, first described by Jaffe and Lichtenstein in 1942, are benign lesions that may easily be mistaken for a malignant tumor both radiographically and pathologically. These diagnostic problems are due to their rapid growth, extensive destruction of bone, wide extraosseous tumor masses, and marked cellular exuberance. The differential diagnosis of aneurysmal bone cysts including giant cell tumor, calcified solitary bone cysts, low-grade osteosarcoma, and teleangiectatic osteosarcoma becomes even more complicated when the lesion arises at sites other than the long bones and presents with extensive extraosseous, soft-tissue tumor masses. The latter cases--especially when they occur as sacral or presacral tumors--present challenges with respect to successful treatment, which should combine surgical removal of the entire lesion following oncological criteria to prevent recurrences and osteosynthesis to guarantee the biomechanical stability of the spinal-pelvic junction. Here we report on the clinical case of a female patient with an aneurysmal bone cyst of the sacrum and extensive extraosseous tumor masses. The report includes the diagnostic challenges, the surgical options of sacral and/or presacral tumors, the histopathological findings, and long-term clinical and radiographic surveillance. METHODS: The patient was treated by a combination of preoperative adjuvant selective arterial embolization, radical surgical excision through an anterior approach followed by subsequent osteosynthesis and stabilization through a posterior approach. RESULTS: Clinical and radiographic follow-up for 2 years was uneventful, and the patient is still free of recurrence or any complaints. CONCLUSION: The current report documents the diagnostic and surgical challenge of a gigantic aneurysmal bone cyst of the sacrum and its successful management.

Adolescent↗