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Caudate lobe of liver

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Caudate lobe of liver
Posterior and inferior surfaces of the liver (caudate lobe visible at center top).
Details
Identifiers
LatinLobus caudatus,
segmentum hepatis posterius I
TA98A05.8.01.030
TA23053
FMA13365
Anatomical terminology

The caudate lobe (posterior hepatic segment I, Spigelian lobe) is situated upon the postero-superior surface of the liver on the right lobe of the liver, opposite the tenth and eleventh thoracic vertebrae. It is bounded on the left side by the physiological division of the liver called the ligamentum venosum.

It is bounded, below, by the porta; on the right, by the fossa for the inferior vena cava; and, on the left, by the fossa for the ductus venosus.

It looks backward, being nearly vertical in position; it is longer from above downward than from side to side, and is somewhat concave in the transverse direction.

The caudate process is a small elevation of the hepatic substance extending obliquely and laterally, from the lower extremity of the caudate lobe to the under surface of the right lobe.

It is situated behind the porta, and separates the fossa for the gall-bladder from the commencement of the fossa for the inferior vena cava.

Budd-Chiari syndrome, caused by occlusion of hepatic venous outflow, can lead to hypertrophy of the caudate lobe due to its own caval anastomosis that allows for continued function of this lobe of the liver.

Additional images

References

Public domain This article incorporates text in the public domain from page 1192 of the 20th edition of Gray's Anatomy (1918)