Liver span
Liver span is a term used in medicine to describe the measurement of the liver size by physical examination. It is an important aspect of the abdominal examination and can provide valuable information about the health of the liver.
Pronunciation
The term is pronounced as /ˈlɪvər spæn/.
Etymology
The term "liver span" is derived from the English words "liver", referring to the large organ in the body that processes nutrients and removes harmful substances, and "span", meaning the full extent or reach of something.
Measurement
The liver span is typically measured in centimeters (cm) and is determined by percussion and palpation. The normal liver span varies depending on the individual's age, sex, and body size. In adults, the normal liver span is approximately 6 to 12 cm in the midclavicular line and 4 to 8 cm in the midsternal line.
Clinical significance
An increased liver span, known as hepatomegaly, can be a sign of various liver diseases, including hepatitis, cirrhosis, and liver cancer. A decreased liver span, on the other hand, may indicate conditions such as liver atrophy or liver failure.
Related terms
- Hepatomegaly: An enlargement of the liver beyond its normal size.
- Hepatitis: Inflammation of the liver, usually caused by viruses like hepatitis A, B, and C.
- Cirrhosis: Late stage of scarring (fibrosis) of the liver caused by many forms of liver diseases and conditions.
- Liver cancer: A type of cancer that starts in the liver.
- Liver atrophy: A decrease in the size of the liver.
- Liver failure: A life-threatening condition that demands urgent medical care. It often occurs in people who have had liver problems for a long time.
External links
- Medical encyclopedia article on Liver span
- Wikipedia's article - Liver span
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