Skeletal osteochondroma or osteocartilaginous exostosis represent the most common tumor of all benign bone tumors and 10-15% of all bone tumors 1 . It is a benign cartilagecapped outgrowth, connected to bone by a stalk. It can be either isolated or as part of a syndrome (Hereditary Multiple Exostosis-HME) and its progression usually stops when the skeleton is mature, after the closure of the growth plate 2 .This lesion usually involves long bones 95%, especially near the knee 36%. It can rarely be found on flat bones,