Normal Variations in Liver Shape
In some persons, especially those with a lanky build, the liver tends to be somewhat elongated so that its right lobe is easily palpable as it projects downward toward the iliac crest. Such an elongation, sometimes called Riedel's lobe, represents a variation in shape, not an increase in liver volume or size. This variant illustrates the basic limitations of assessing liver size. We can only estimate the upper and lower borders of an organ that has three dimensions and differing shapes. Some error is unavoidable.
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