Study about Riedel’s Lobe: An Approach to Morphology and Its Clinical Significance

Riedel lobe of the liver, a downward tongue-like projection of the anterior edge of the right lobe of the liver to the right of the gallbladder, is an important anatomical variation. Accessory liver lobes are rarely described and result from over development of the liver. The presence of an accessory hepatic lobe is usually diagnosed incidentally and often detected when it develops torsion, especially in pedunculated forms. In most cases, the accessory lobe is located below the liver, i.e., infrahepatic. Riedel’s lobe is the best-known example of an accessory lobe, corresponding to hypertrophy of segments V and VI. While accessories lobes can mimic tumors, and may also form hepatocellular tumors as described in literature. So, Riedel’s lobe may not be latent at all times and hence should not be ignored. Aim of this chapter is to update present and past research work on Riedel’s lobe carried out by researchers and consolidating it for ready references for future researchers and clinicians.