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METABOLIC DISORDERS (OSTEOMALACIA soft bones (generalised osteopaenia,…
METABOLIC DISORDERS
OSTEOPOROSIS
GENERALISED AXIAL
“pencil thin” cortex, dark medulla
loss of 2° stress trabeculae, accentuation of 1° trabeculae
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compression fractures (anterior wedge, fish vertebra - biconcave), especially in the thoracic spine
altered spinal curvatures, increased kyphosis
GENERALISED APPENDICULAR
pelvis, proximal femurs (Ward’s triangle)
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REGIONAL
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IMAGING
aggressive, regional osteopenia
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Decreased on T1, Increased on T2 weighted spin-echo sequences
LOCAL causes: tumours, infection, arthritis
OSTEOMALACIA soft bones
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triradiate pelvis (bilateral protrusio acetabuli) PORT causes Paget, Osteomalacia, RA, Trauma
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RICKETS childhood osteomalacia, lack Vit D
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muscle tetany, irritability, weakness, delayed development and short stature
bowing deformities, overgrowth of cartilage near joints and costochondral junction (rachitic rosary)
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