Purpose or Case Report: Osteochondromas are the most common bone tumor, accounting for 10-15% of all bone tumors. They are prevalent in the pediatric population and are hypothesized to be a developmental anomaly rather than a true neoplasm, frequently asymptomatic and found incidentally. Although usually sporadic and benign, osteochondromas can be associated with Multiple Hereditary Exostoses (MHE) and Trevor disease or can arise after trauma or radiation treatment. In such cases, complications are more common. A good understanding of these complications and their associated radiologic findings is crucial to identify and differentiate variants that will guide treatment. The purpose of this educational exhibit is to review the typical radiologic presentation of osteochondromas using a variety of imaging modalities including X-Ray, MRI, CT, ultrasound, and nuclear medicine scans. Additionally, imaging appearances of complications and variants of osteochondromas such as MHE, malignant degeneration, associated fracture, bursa formation, and tendon or nerve impingement will be discussed. Case examples will be used to highlight these findings and correlate them to patient presentation.
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