Secondary aneurysmal bone cysts and associated primary lesions: Imaging features of 49 cases
Clinical Imaging Feb 06, 2020
Gutierrez LB, et al. - Experts sought to illustrate the imaging, anatomic, and clinical features of a series of secondary aneurysmal bone cysts (ABC) and to ascertain their most commonly associated primary bone lesions. A total of 49 (24 males and 25 females) cases of histopathologically proven secondary ABCs were retrospectively examined. In this study, radiographic, computed tomographic, magnetic resonance, and nuclear medicine imaging were investigated. They documented lesion location, imaging characteristics, and associated primary lesions. For statistical analysis, linear regression analysis and Chi-squared testing were conducted. The giant cell tumor and chondroblastoma were the most common primary lesions correlated with secondary ABC, located in the long bone epiphyses. The majority of the secondary aneurysmal bone cysts show predominant imaging features typical of the primary bone lesions, but with a higher occupancy of fluid-fluid levels.
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