Quadrate lobe
Lobus quadratus
Definition
The quadrate lobe (lobus quadratus) is situated on the under surface of the right lobe, bounded in front by the anterior margin of the liver; behind by the porta; on the right, by the fossa for the gall-bladder; and on the left, by the fossa for the umbilical vein. It is oblong in shape, its antero-posterior diameter being greater than its transverse.
Varying from sources, it is not clear if the quadrate and caudate lobes. belong to the right lobe of liver (in Gray's for example) or if these two lobes may be considerate as separated lobes like in the Terminologia Anatomica 1&2.
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