Claude Couinaud was a French surgeon and anatomist who made significant contributions in the field of hepatobiliary

Hepatobiliary system

This refers to the liver, gall bladder and bile ducts, and how they work together to make bile. Bile consists of water, electrolytes, bile acids, cholesterol, phospholipids and conjugated bilirubin. Some components are synthesised by liver cells, the rest are extracted from the blood by the...

 surgery. He is best known for his detailed anatomic studies of the liver and was the first to describe its segmental anatomy. These anatomic facts permitted the development of hepatectomies

Hepatectomy

Hepatectomy consists on the surgical resection of the liver. While the term is often employed for the removal of the liver from a liver transplant recipient, this article will focus on partial resections of hepatic tissue.-History:...

.

His book Le Foie: Études anatomiques et chirurgicales
stands as the seminal work on hepatobiliary surgery and anatomy of the 20th century.