M85: Other disorders of bone density and structure

M85.6: Other cyst of bone

Other cyst of bone refers to a medical condition characterized by the development of fluid-filled sacs or pockets within the bone structure. These cysts can occur in any bone in the body, most commonly in the long bones of the arms and legs. While their exact cause is still unknown, they are thought to result from changes in blood flow or trauma to the bone. Symptoms include pain, swelling, or a visible lump, and they may even lead to fractures in some cases. However, many bone cysts do not cause symptoms and are discovered incidentally through X-rays for other conditions. The progression of the disease differs greatly among individuals based on factors such as the cyst's location and size. This condition generally affects the skeletal system but can potentially impact other surrounding tissues or organs.