Osteoporosis
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Osteomalacia
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Parathyroid disorder
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Pituitary disorder
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1. Gigantism
2. Acromegaly
Intoxication, poisoning
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1. Heavy metal (lead)
2. Fluorine
3. Hypervitaminosis A
4. Hypervitaminosis D
Complication of drug use
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1. Prostaglandin (periostitis)
Osteonecrosis
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1. Causes
2. Bone infarction
3. Legg-Calve-Perthes disease
4. Freiberg infraction
5. Kienböck's disease
6. Kohler disease
7. Spontaneous osteonecrosis of the knee
Hematologic disorder
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1. Sickle cell disease or variant
2. Thalassemia or variant
3. Iron deficiency anemia
4. Hemophilia
5. Idiopathic myelofibrosis
6. Extramedullary hematopoiesis
7. Fatty marrow reconversion
Miscellaneous
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1. Hemochromatosis
2. Alkaptonuria
3. Amyloidosis
4. Paget's disease
5. Calcification/ossification secondary to venous stasis
6. Calcification/ossification secondary to paraplegia
7. Hypertrophic osteoarthropathy
a. Primary (pachydermoperiostosis)
b. Secondary (pulmonary, etc.)
8. Infantile cortical hyperostosis (Caffey disease)