Radiopaedia Blog : Xray
This case demonstrates the typical circumferential calcification and lucent center of myositis ossificans. The imaging diagosis is not always as clear-cut as it is in this case, and further imaging may be needed. It is important to avoid biopsy of these lesions, especially in the early prolifferative phases, as histologically myositis ossificans can appear similar to osteosarcoma, and lead to inappropriate management. A clinical history of trauma, even minor trauma, can be very helpful.