- Benign chondrogenic lesion derived from aberrant cartilage from the perichondral ring
- Solitary and multiple hereditary forms
- Autosomal dominant inheritance
- Mechanical symptoms or symptoms of neurovascular compression
- X Rays show pedunculated lesions point away from the joint
- cartilage cap becomes thicker as an adult, need to be concerned for chondrosarcoma transformation
- Symptomatic cases- excision
- Complications : Vascular compression, Nerve compression, Tendon compression, Chondrosarcoma, Bursa formation
