The normal liver size threshold commonly cited is

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Multiple Choice

The normal liver size threshold commonly cited is

The main concept is recognizing the upper limit of normal liver size on imaging and using it to define hepatomegaly. In adults, the hepatic span, measured in the midclavicular line on ultrasound (or equivalent imaging), is usually up to about 15 cm, with some sources extending the upper limit to around 15–16 cm. A practical threshold often cited is 15.5 cm. Values above this suggest hepatomegaly, while smaller spans fall within normal variation given body habitus and technique. So 15.5 cm is the best answer because it reflects the commonly used practical cutoff for the upper limit of normal liver size. The other options are either well below (less likely to be normal) or well above the typical upper limit and would indicate enlargement.

The main concept is recognizing the upper limit of normal liver size on imaging and using it to define hepatomegaly. In adults, the hepatic span, measured in the midclavicular line on ultrasound (or equivalent imaging), is usually up to about 15 cm, with some sources extending the upper limit to around 15–16 cm. A practical threshold often cited is 15.5 cm. Values above this suggest hepatomegaly, while smaller spans fall within normal variation given body habitus and technique. So 15.5 cm is the best answer because it reflects the commonly used practical cutoff for the upper limit of normal liver size. The other options are either well below (less likely to be normal) or well above the typical upper limit and would indicate enlargement.

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