This is a fibroblastic lesion that typically affects children. It consists of large numbers of fibroblasts that form around nodules of calcium or cartilage. Rarely, bone may be present. This is a very uncommon tumor. Almost all calcifying fbromas occur in the hands and feet, but rarely, other sites may be involved. Patients usually complain of a mass that is sometimes painful. Almost all of these tumors are less than 3 centimeters in diameter. Treatment for this tumor consists of simple excision. There is a reasonably high incidence of local recurrence (approximately 50%) following excision. Local recurrence of this tumor is not destructive. Most recurrences are treated and cured by removal of the recurrent tumor. These lesions do not metastasize.