Foot calcificate

An elderly female patient complained of growth and mild pain while walking along the outer edge of the foot. She reported that she has been noting the growth for 3 years. On radiographs in lateral view, a rather large bone density formation is visible. It may seem that this is an artifact or a foreign body or a stain of radiopaque substance on the cassette. However, the second view showed the formation as well. When removed, it was a densely elastic formation in the capsule. On the cut, it is a fibrous tissue granuloma containing calcification with white liquid contents.