Polyostotic bone lesions in children

Fibrous dysplasia is a disorder where normal bone and marrow is replaced with fibrous tissue, resulting in formation of bone that is weak and prone to expansion. As a result, most complications result from fracture, deformity, functional impairment, and pain. [Source: Wikipedia ]

May Be Caused by

Common: Brown tumor of hyperparathyroidism; Burkitt lymphoma; Dysostosis; Fibrous cortical defect; Langerhans cell histiocytosis; Leukemia; Lymphoma; Nonossifying fibroma; Osteochondrodysplasia; Osteomyelitis; Polyostotic fibrous dysplasia; Primary anemia; Trauma
Uncommon: Angiomatosis; Avascular necrosis; Cortical bone desmoid; Cystic lymphangiomatosis; Dactylitis; Enchondromatosis; Ewing sarcoma; Fibromatosis; Gaucher disease; Hemangiomatosis; Hemophilia; Hereditary multiple exostoses; Hypervitaminosis A; Hypervitaminosis D; Jaffe-Campanacci syndrome; Juvenile chronic arthritis; Juvenile rheumatoid arthritis; Landing-Shirkey disease; Leprosy; Macrodystrophia lipomatosa; Maffucci syndrome; Mastocytosis; Melorheostosis; Metastases; Mucolipidosis; Mucopolysaccharidosis; Multicentric infantile myofibromatosis; Neuroblastoma; Neurofibromatosis; Niemann-Pick disease; Osteosarcomatosis; Pachydermoperiostosis; Periosteal desmoid; Sickle cell disease; Syphilis; Tuberous sclerosis; Yaws