Radiological assessment of arm fat and muscle stores was performed in 46 controls and 10 malnourished patients. Values for arm fat and muscle thickness were obtained. In malnourished patients there was no significant correlation between fat estimation from the radiograph and measurement with skinfold calipers. Significant correlation between arm muscle circumference measurement and radiological muscle thickness however was found (P less than 0.05). Radiological assessment of arm muscle is a simple and useful test of muscle protein depletion in malnourished patients.
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