Acquired spinal stenosis secondary to an expanding thoracic vertebral hemangioma.

Abstract

Intraosseous hemangioma is a slow-growing primary benign neoplasm of capillary, cavernous, or venous origin. The most common type is the cavernous hemangioma, composed of large thin-walled vessels and sinuses lined by endothelial cells. Although found in any bone, hemangioma is most common in the vertebrae, where it represents 2-3% of all radiographically detectable spinal tumors. Most spinal hemangiomas are solitary, asymptomatic lesions of the vertebral body, with 10-15% showing concomitant involvement of the posterior elements. Rarely, the lesion is located to the posterior arch. An unusual case of an expanding vertebral hemangioma isolated to the posterior elements of T9 is presented.

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