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Multiple Choice

Hepatomegaly is defined as liver enlargement beyond normal size. Which measurement threshold is commonly used to define hepatomegaly?

Hepatomegaly means the liver is larger than normal, and in clinical exams this is assessed by estimating the liver span in the right midclavicular line. A commonly used cutoff for defining hepatomegaly is a liver span greater than about 15 cm. This threshold is chosen because it balances typical adult variation with the size range considered enlarged on physical exam and imaging. Values well below that, like around 10–12 cm, are generally within the normal range for most adults depending on technique and body habitus, while a span as large as 18 cm would indicate more significant enlargement or may reflect measurement variability. In practice, imaging (ultrasound, CT) often confirms and more precisely quantifies liver size when hepatomegaly is suspected.

Hepatomegaly means the liver is larger than normal, and in clinical exams this is assessed by estimating the liver span in the right midclavicular line. A commonly used cutoff for defining hepatomegaly is a liver span greater than about 15 cm. This threshold is chosen because it balances typical adult variation with the size range considered enlarged on physical exam and imaging. Values well below that, like around 10–12 cm, are generally within the normal range for most adults depending on technique and body habitus, while a span as large as 18 cm would indicate more significant enlargement or may reflect measurement variability. In practice, imaging (ultrasound, CT) often confirms and more precisely quantifies liver size when hepatomegaly is suspected.