Enchondroma protuberans

Last revised by Fabian Hänel on 23 Aug 2021

Enchondroma protuberans, also known as ecchondroma, is a rare form with an exophytic growth pattern that leads to deformity/remodeling of the cortex, unlike 'typical` enchondromas' which are located within the intramedullary cavity. 

Radiographic features

Due to their cartilaginous origin, typical imaging features are those of cartilage on all modalities.