A<unk> , also known as a simple bone cyst, is a cavity filled with a yellow-colored fluid. It is considered to be benign since it does not spread beyond the bone.<unk> s can be classified into two categories: active and latent. An active cyst is adjacent to the epiphyseal plate and tends to grow until it fills the entire diaphysis, the shaft, of the bone; depending on the invasiveness of the cyst, it can cause a pathological fracture or even destroy the epiphyseal plate leading to the permanent shortening of the bone. A latent cyst is located away from the epiphyseal plate and is more likely to heal with treatment. It is typically diagnosed in under 20 year olds. Although<unk> s can form in any bone structure, it is predominantly found in the proximal humerus and proximal femur; additionally, it affects males twice as often as females.
Unicameral bone cyst
Bone cyst
Peripheral ossifying fibroma
Aneurysmal bone cyst
Osteoid osteoma
Leri pleonosteosis
Osteoma cutis
Osteochondroma