riedel's lobe

riedel's lobe

The sketch in bottom row-Right shows detailed anatomy of the Riedel's lobe. The gall bladder was visualized and appeared normal.

riedel's lobe

This patient was referred to a CT imaging center for further evaluation of the suspected mass in the tip of the Riedel's lobe. 

riedel's lobe

The above ultrasound images show what appears to be right renal lower pole mass (image in top row left). 

But further ultrasound imaging of the liver shows it to be an extension of the right lobe draped over the anterior surface of the right kidney. 

The apparent mass (M) appears to be on the tip of the tongue of liver tissue. This beak of liver tissue extending from the right lobe of liver is called Riedel's lobe of the liver and is a very rare normal variant.