You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Radiological feature differentiating myositis ossificans from bone tumor is -a) Peripheral ossificationb) Central lucencyc) Discontinuity with the boned) None and explain in detail?
Round mass with distinct peripheral margin of mature ossification and a radiolucent center of immature osteoid & primitive mesenchymal tissue is characteristic of myositis ossificans and this peripheral maturation and central immaturity is reverse of that seen in malignant bone tumor.
The mass is usually seperated from underlying bone by at least a thin line & lesion are usually located in the diaphysis. If the lesion is in continuity with the bone it is not myositis ossificans and the possibility of tumor or infection arises.