Congenital portosystemic shunt
Congenital portosystemic shunt (also known as Abernethy malformation) is a rare congenital condition in which the portal vein is either partially or completely diverted to the systemic circulation.
Pronunciation
- Congenital: /kənˈjenɪtl/
- Portosystemic: /ˌpɔːrtoʊsɪˈstɛmɪk/
- Shunt: /ʃʌnt/
Etymology
The term "congenital" is derived from the Latin congenitus, meaning "born with". "Portosystemic" is a compound word combining "porto", from the Latin portus meaning "port" or "gateway", and "systemic", from the Greek systema meaning "whole unit". "Shunt" is derived from the Old English scunten, meaning "to flinch".
Definition
A congenital portosystemic shunt is a birth defect where the blood flow bypasses the liver. This can lead to a variety of health issues, including hepatic encephalopathy, pulmonary hypertension, and liver tumors.
Related Terms
- Portal vein: A large vein that carries blood from the digestive organs to the liver.
- Systemic circulation: The part of the cardiovascular system which carries oxygenated blood away from the heart to the body, and returns deoxygenated blood back to the heart.
- Congenital disorder: A condition that is present at birth, regardless of its cause.
- Hepatic encephalopathy: A decline in brain function that occurs as a result of severe liver disease.
- Pulmonary hypertension: A type of high blood pressure that affects the arteries in the lungs and the right side of the heart.
- Liver tumors: Tumors that occur in or on the liver.
External links
- Medical encyclopedia article on Congenital portosystemic shunt
- Wikipedia's article - Congenital portosystemic shunt
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