- Osseous
- Cartilaginous
- Fibrous
- Reticuloendothelial
- Eosinophilic granuloma
- Ewing’s sarcoma
- Hands Schuller Christian
- Letterer Siwe disease
- Reticulum cell sarcoma
- Vascular
- Unknown origin
- Misc:
Reviewed by Professor Phong Tran, Head of Orthopaedic Surgery, Western Health. Last updated 10 October 2026.