1/44. Simple bone cyst in cervical vertebral spinous process and laminae: report of a case.Simple (unicameral or solitary) bone cysts are the only true cysts of primary intraosseous origin. These cysts involve the metaphysis of long tubular bones such as the proximal humerus and proximal femur and, occasionally, the proximal tibia, distal femur, patella, ilium, rib, and calcaneus. They are very rarely found in vertebrae, especially in the cervical vertebral spinous process and laminae. We report a 14-year-old boy with an expansile, bubbly cystic lesion in the spinous process and laminae of the seventh cervical vertebra. Histopathologic examination showed a cyst surrounded by thin fibrous or fibro-osseous wall without any lining epithelial cells, compatible with a simple bone cyst. As far as we know, this is the first case of simple bone cyst involving the spinous process and laminae of a cervical vertebra reported in taiwan.- - - - - - - - - - ranking = 1keywords = vertebra (Clic here for more details about this article) |
2/44. Intraosseous pneumatocyst of the scapula.Intraosseous pneumatocyst is a gas-containing cyst-like lesion that occurs most frequently in the ilium, sacrum or vertebrae. We present a case involving the left scapula that was found incidentally on CT. To our knowledge, intraosseous pneumatocyst of the scapula has not been previously reported.- - - - - - - - - - ranking = 0.125keywords = vertebra (Clic here for more details about this article) |
3/44. Spontaneous progression of vertebral intraosseous pneumatocysts to fluid-filled cysts.Intraosseous pneumatocyst is a relatively rare condition, and its natural course is not known. We report two cases of intraosseous pneumatocyst of vertebra with resorption of gas and its replacement with fluid shown on follow-up cross-sectional imaging. The mechanism influencing the course of these appearances is unclear. However, the benign nature of intraosseous pneumatocyst needs to be recognized and biopsy avoided.- - - - - - - - - - ranking = 0.625keywords = vertebra (Clic here for more details about this article) |
4/44. Unicameral bone cyst of a cervical vertebral body and lateral mass with associated pathological fracture in a child. Case report and review of the literature.The authors present the case of a 10-year-old girl with a history of cervical trauma in whom a cystic lesion was found to involve all three columns of C-7 with evidence of pathological fracture. Computerized tomography scanning revealed a lytic lesion with sclerotic margins involving the left vertebral body, pedicle, lateral mass, and lamina of C-7 with an associated pathological compression fracture. magnetic resonance imaging demonstrated mixed signal on both T1- and T2-weighted sequences, with cystic and enhancing solid portions. magnetic resonance angiography demonstrated anterior displacement of the left vertebral artery at C-7. The patient underwent C-7 subtotal corpectomy and posterior resection of the tumor mass; anterior and posterior fusion were performed in which instrumentation was placed. Histological examination disclosed cystic areas lined by fibromembranous tissue with calcification and osteoid deposits consistent with unicameral bone cyst. Of the four previously reported cases of unicameral bone cysts in the cervical spine, none involved all three columns simultaneously or was associated with pathological fracture. The most common differential diagnostic considerations for cystic lesions in the spine are aneurysmal bone cyst, osteoblastoma, or giant cell tumor of bone. Unicameral bone cyst, in this location, although rare, must be considered in the differential diagnosis and may require resection and spinal reconstruction.- - - - - - - - - - ranking = 0.75keywords = vertebra (Clic here for more details about this article) |
5/44. Simple bone cyst with pathologic lumbar pedicle fracture: a case report.STUDY DESIGN: A case report and review of the literature are presented. OBJECTIVE: To describe an unusual simple bone cyst involving the pedicle of lumbar spine. SUMMARY OF BACKGROUND DATA: To the authors' knowledge, only nine cases of a simple bone cyst involving the spine have been reported. Most of these reports have described mild back or neck pain because the presenting symptoms or cysts were found incidentally. In the reported case, acute severe back pain with radiating pain developed. Therefore, the study focus was on the unusual location, the presenting symptoms, and its spinal involvement. methods: A cystic lesion involving the left pedicle of the first lumber vertebra was identified in a 53-year-old woman with sudden-onset severe back pain with pain radiating to the left leg. Surgical resection was undertaken along with review of the patient's medical record, imaging studies, microscopic findings of the lesion, and the related literature. RESULTS: Microscopic examination of the cystic lesion corresponded with the findings of a simple bone cyst. A thin fibrous membrane with reactive bone formation was identified without evidence of hemorrhage. A favorable result was achieved by surgical resection. CONCLUSIONS: This case study suggests that a simple bone cyst may be found in any portion of the spine, including the pedicle. Severe resting pain would be elicited by a pathologic fracture of the pedicle. Direct nerve compression by the fractured fragment and chemical irritation by cystic fluid would be compatible with the observed clinical manifestations.- - - - - - - - - - ranking = 0.125keywords = vertebra (Clic here for more details about this article) |
6/44. echinococcosis granulosus/cysticus of the tibia.Hydatid disease is caused by the parasitic tapeworm echinococcus. There are three species: E. granulosus, E. alveolaris and E. voegeli. Only E. alveolaris and E. granulosus are important for human infections. These two species are totally divergent in their manner of infestation. Hydatid disease is a rare parasitic disease that primary involves the liver and the lung. Skeletal disease is rare, accounting for less than 2% of all hydatid lesions, and often presents as a clinical and radiologic diagnostic problem. The skeletal involvement is usually due to secondary extension after haematogenous spread of the infection. The vertebral column, the pelvis and the skull are most commonly involved. Treatment is also difficult because of the invasive nature of bony involvement and the spillage of fluid with subsequent contamination seeding. We present a case of primary hyatid cyst of the tibia. We point out the importance of considering osseous hydatidosis in the differential diagnosis of destructive bone lesions and the necessity of radical resection.- - - - - - - - - - ranking = 0.125keywords = vertebra (Clic here for more details about this article) |
7/44. Multiple cystic tuberculous lesions in the skeleton (Jungling disease): a case report.STUDY DESIGN: A case is reported. OBJECTIVES: To report and discuss a case of multiple cystic tuberculous skeletal lesions. SUMMARY OF BACKGROUND DATA: Multiple cystic tuberculosis lesions of the skeleton, or Jungling disease, is a rare variety of tuberculosis reported extensively 30 to 40 years ago. No such severe type of tuberculosis has been reported in recent years. The patient was a 43-year-old woman with a history of steroid treatment, whose cervical lesions caused C2 and C3 destruction and spinal cord impingement. methods: Medical history, laboratory data, radiographs, bone scan, and MRI were studied. The bone scan showed lesions in both the axial and peripheral skeletons. As shown on the radiographs and MRI, the C2-C3 vertebral bodies were extensively destroyed. RESULTS: An open biopsy of the right clavicle confirmed the diagnosis of tuberculosis. Because of the neurologic involvement, the patient was treated with C2-C3 anterior radical resection and fusion combined with standard antituberculosis chemotherapy. During a follow-up period of 12 months, no progression in other skeletal lesions was observed. Follow-up radiographs showed fusion in the C2-C3 lesions. CONCLUSIONS: Although the prognosis of Jungling disease is good, radical surgical treatment should be chosen when there is neurologic involvement. To prevent such a severe type of tuberculosis, it is recommended that steroid therapy should be withheld until tuberculosis is excluded in the diagnosis.- - - - - - - - - - ranking = 0.125keywords = vertebra (Clic here for more details about this article) |
8/44. Symptomatic intraosseous synovial cyst in the cervical spine: a case report.STUDY DESIGN: A case report and review of the literature are presented. OBJECTIVE: To describe an unusual location for a cervical synovial cyst and to review characteristic presentations and findings of synovial cysts in the cervical spine. SUMMARY OF BACKGROUND DATA: Synovial cysts in the cervical spine are rare. To date, only 27 have been reported in the literature. None, however, has been reported as cysts involving or eroding into the vertebral body. methods: A single case of an intraosseous synovial cyst in the cervical spine is presented with a review of the literature. RESULTS: history, examination, and radiographic evaluation suggested an intraosseous cystic lesion, which pathologically was determined to be synovial in origin. CONCLUSIONS: We present a case of a cervical synovial cyst in a previously undescribed intraosseous location in the cervical spine, treated successfully with surgical excision.- - - - - - - - - - ranking = 0.125keywords = vertebra (Clic here for more details about this article) |
9/44. Enlarging vertebral body pneumatocysts in the cervical spine.An intravertebral pneumatocyst is a relatively rare condition, and its natural course and etiology are unclear. We report a case of intravertebral pneumatocysts in the C5 vertebra that gradually enlarged during a 16-month period as documented by follow-up CT. In addition, direct communication was observed between the gas in the intervertebral disk and another pneumatocyst in the C6 vertebral body, which suggests that the gas in the pneumatocyst had an association with the gas in the degenerated intervertebral disk.- - - - - - - - - - ranking = 1.25keywords = vertebra (Clic here for more details about this article) |
10/44. A simple bone cyst located in the pedicle of the lumbar vertebra.A simple bone cyst located in the spine is rare. In the current work, we have documented the first case of a simple bone cyst located in the pedicle of the lumbar vertebra. The patient was a 50-year-old woman with low back pain. Radiographs of the lumbar region of the spine showed a well circumscribed radiolucent lesion with surrounding bone sclerosis in the right pedicle of L3. Computed tomography (CT) showed that the right pedicle was completely occupied by the cyst and slightly expanded. The cystic lesion extended to both the vertebral body and the lamina. T1-weighted magnetic resonance imaging (MRI) showed uniform low intensity, and T2-weighted MRI showed uniform very high intensity. Signal enhancement by gadolinium diethylenetriaminepenta-acetic acid was not observed in the lesion. During the operation, the cavity of the cyst was filled with 2 mL of serosanguinous fluid. Subsequent histologic examination showed a thin layer of connective tissue in the inner surface of the cyst.- - - - - - - - - - ranking = 0.75keywords = vertebra (Clic here for more details about this article) |
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