“…4,5,15 The patient's medical history and clinical characteristics of the lesion can be helpful in distinguishing a peripheral osteoma from an exostosis, even though there are no histological differences between the two entities; an osteoma will continue to grow during adulthood, unlike exostoses, which usually stop growing after puberty. 5,14,18 In addition, the osteoid subtype of osteomas usually grows rapidly and is painful. 14,19 A periosteal osteoblastoma has similar characteristics in terms of growth rate and symptoms.…”