Malignant transformation of a non-osteogenic fibroma of bone.
D000328:Adult; D001859:Bone Neoplasms / Q000150:complications*; D005350:Fibroma / Q000150:complications* / Q000473:pathology; D005354:Fibrosarcoma / Q000209:etiology* / Q000473:pathology; D006801:Humans; D008297:Male; D013977:Tibia / Q000473:pathology