- Benign chondrogenic tumor composed of hyaline cartilage caused by an abnormality of chondroblast function in the physis
- Most common in 20-50 year olds
- Most common locations hand (60%) > feet
- Associated conditions: Ollier’s disease (multiple enchondromatosis) and Maffucci’s syndrome
- Presents with pathological fracture or angular deformities
- X rays show Pop-corn” stippling, arcs, whorls, rings
- Symptomatic and Pathologic fractures – immediate curettage and grafting is now favoured
- Watch out for risk of malignant transformation in multiple enchondromas
