To better understand osteoid osteoma, it helps to understand bone anatomy.
The skeleton is a living structure that supports the entire body. Bone is made up of an outer shell of very dense bone that surrounds a honeycomb-like structure of softer bone. Bone mainly consists of protein and calcium. Without calcium, bone will become weak.
The human skeleton can be divided into two sections:
- Axial skeleton:
- Appendicular skeleton:
- A total of 126 bones including the pelvic girdle, limbs, feet and hands
- Allen SD, Saifuddin A. Imaging of intra-articular osteoid osteoma. Clin Radiol. 2003 Nov;58(11):845-52. 
- Hosalkar HS, Garg S, Moroz L, Pollack A, Dormans JP. The diagnostic accuracy of MRI versus CT imaging for osteoid osteoma in children. Clin Orthop Relat Res. 2005 Apr;(433):171-7. 
- Marcuzzi A, Acciaro AL, Landi A. Osteoid osteoma of the hand and wrist. J Hand Surg. 2002 Oct;27(5):440-3. 
- Witt J. Management of osteoid osteoma. Hosp Med. 2002 Apr;63(4):207-9.