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Measurement of Liver Size in Children

Determination of organ size during life can be difficult, and Younoszai and Mueller2 have pointed out the role to be played by physical examination in estimating liver length at the right midclavicular line. Ultrasonography may eventually add a relatively benign approach to estimating hepatic dimensions. Until that modality is fully developed, however, radionuclide scans of the liver appear to be the procedure of choice when the size of the liver in a child must be accurately determined (although there is a slight associated radiation dose). Since hepatic scans are usually reported in terms of the greatest length of the organ, it is of interest to compare the scan determined liver length in another pediatric population’ with the midclavicular length as determined by physical examination.2 Letting L be liver length (cm) and A the