Periosteal chondroma. Report of two cases with atypical radiological features.
D000328:Adult; D001859:Bone Neoplasms / Q000000981:diagnostic imaging*; D002812:Chondroma / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007717:Knee; D008297:Male; D008875:Middle Aged; D010521:Periosteum; D011859:Radiography; D013933:Thumb