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Observer variation in the clinical and radiological assessment of hepatosplenomegaly.

The size of the liver and spleen of 32 patients was assessed by four clinicians from a clinical examination and by four radiologists from a plain radiograph of the abdomen. The latter assessment was found to be subject to less variation than the former, particularly in regard to the liver. Large livers and spleens were more easily seen radiologically than small ones. Most of the variation among the radiologists arose because of the 6% and 24% of cases in which the liver and spleen, respectively, were poorly seen on the radiograph. It is concluded that a plain radiograph of the abdomen, includi