Abstract
Aneurysmal bone cyst is an intramedullary eccentric metaphyseal and rapid expansible benign lytic lesion with multiloculated blood-filled cystic cavities, lined by membranes of different thickness and composed of spindle cells, osteoid trabeculae, and osteoclastic-type giant cells. Primary ABC: When ABC arises “de novo” in bone − 70 % of cases. In these cases, a definite preexisting lesion cannot be demonstrated. Secondary ABC: Areas similar to primary ABC are found in various benign and malignant conditions. Male/female ratio is equal. The second followed by the first decade of life accounts for 80 % of cases. Roentgenographically, it is an area of lucency situated eccentrically in the medullary cavity in the metaphysis of a long bone. MRI confirms the entirely cystic nature, the internal septations, and its fluid-fluid levels. Treatment includes excision or curettage and bone grafting.
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Olvi, L.G., Lembo, G.M., Velan, O., Santini-Araujo, E. (2015). Aneurysmal Bone Cyst. In: Santini-Araujo, E., Kalil, R., Bertoni, F., Park, YK. (eds) Tumors and Tumor-Like Lesions of Bone. Springer, London. https://doi.org/10.1007/978-1-4471-6578-1_48
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DOI: https://doi.org/10.1007/978-1-4471-6578-1_48
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