Bone cyst

Bone cyst is a benign lesion of bone, also known as solitary bone cyst, simple bone cyst (simplebonecyst), the wall of the capsule is a layer of fibrous envelope, the capsule is yellow or brown liquid. Bone cysts occur frequently in the metaphysis of the long bones and in the medullary cavity of the backbone, and rarely occur in the vertebral body. Occurs in 20-year-olds, more men than women.