Clinic: deformed right upper arm (x-ray) and right hand accompanied by swelling. Fracture of the humerus 5 years back.
Now, I receive tiny fragments of the humerus with the question: Ollier's disease, fibrous dysplasia ?
My problem: I cannot see any cartilage. Some of the fragments are consistent with fibrous dysplasia. My first impression was that these are fragments of a callus, however, the fracture is 5 years back. In the cellular fibrous fragments osteoid-like substance is formed by cells which look not highly pleomorphic, can we rule out an osteosarcoma ? Thanks !