A transverse sonogram of the liver is most likely demonstrating which of the following?

A transverse sonogram of the liver is particularly effective at visualizing the biliary tree and assessing for any dilatation of the bile ducts. In cases where metastatic disease affects the liver, obstruction of the bile ducts can occur due to the masses pressing on or invading the biliary structures. This obstruction can lead to biliary dilatation, which would be evident on a transverse sonogram.

The imaging findings would show enlarged bile ducts as well as potentially other secondary effects on liver structure. Recognizing biliary dilatation is important for diagnostic purposes as it can lead to further evaluation and management of the underlying metastatic process. Therefore, a transverse view that demonstrates biliary dilatation can indicate the presence of metastatic disease affecting the liver.

Other choices may describe conditions that could be visualized in a transverse sonogram, but they do not directly address the specific relationship between transverse imaging and the appearance of biliary dilatation as effectively as option D does.