Avascular necrosis

Synonyms
Aseptic necrosis
AVN
Bone infarction
Ischemic bone necrosis
Osteonecrosis
May Cause
Bone sequestrum
Flat femoral head
Fragmented femoral head
Fragmented or irregular femoral head
Fragmented, irregular, or sclerotic carpal or tarsal bones
Humeral head deformity
Irregular epiphyseal ossification centers
Irregular epiphysis
Joint effusion
Localized small epiphyses
Mandibular periostitis
Mixed-radiopacity jaw lesion
Monoarticular joint disease
Multiple abnormal epiphyses
Multiple osteosclerotic bone lesions
Multiple sclerotic foci in an infant or child
Narrowed joint space
Non-neoplastic bone lesion
Osteolytic lesion with calcium attenuation
Osteosarcoma
Periosteal reaction involving the clavicle
Polyostotic bone lesions in adults
Polyostotic bone lesions in children
Premature osteoarthritis
Regional osteoporosis
Sclerotic clavicle
Sclerotic epiphysis
Sclerotic foot bone lesion
Sclerotic hand bone lesion
Site-specific avascular necrosis
Small epiphysis
Solitary lytic epiphyseal lesion
Solitary lytic epiphyseal-metaphyseal lesion
Solitary opacity in jaw
Solitary osteosclerotic bone lesion
Thick tubular hand bones
Tibiotalar tilt
May Be Caused by
 Common
Arteriosclerosis
Battered child syndrome
Congenital insensitivity to pain
Cushing syndrome
Dislocation
Fracture
Giant cell arteritis
Hip nailing
Idiopathic osteonecrosis
Leriche syndrome
Microfracture
Occlusive vascular disease
Osteochondritis dissecans
Primary anemia
Sickle cell disease
Slipped capital femoral epiphysis
Steroid medication
Surgical correction of congenital hip dysplasia
Thromboembolic disease
Trauma
 Uncommon
Alcoholism
Anti-inflammatory drug
Burn
Butazolidin
Caisson disease
Connective tissue disease
Cytotoxic therapy
Electrical injury
Fabry disease
Fat embolism
Frostbite
Gaucher disease
Generalized osteoporosis
Gout
Hemophilia
Hyperlipoproteinemia
Hypothyroidism
Immunosuppressive drug
Indocin
Langerhans cell histiocytosis
Leukemia
Liver disease
Lymphoma
Methotrexate
Meyer dysplasia of the femoral head
Multiple epiphyseal dysplasia
Neuropathic arthropathy
Osteomyelitis
Pancreatitis
Polyarteritis nodosa
Polycythemia vera
Pregnancy
Pyogenic arthritis
Radiation injury
Radium poisoning
Rheumatoid arthritis
Scleroderma
Spontaneous osteonecrosis of the knee
Subacute bacterial endocarditis
Systemic lupus erythematosus
Thiemann disease
Trichorhinophalangeal dysplasia type 1
Winchester syndrome

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