PATHOLOGY

Detailed explanation-1: -Lymphatic vessels from the hepatic ducts and upper CBD drain into the hepatic lymph nodes, a chain of lymph nodes that follows the course of the hepatic artery to drain into the celiac lymph nodes. Lymph from the lower bile duct drains into the lower hepatic nodes and the upper pancreatic lymph nodes.

Detailed explanation-2: -Lymph continues into the celiac lymph nodes, which subsequently drain into the cisterna chyli.

Detailed explanation-3: -The celiac lymph nodes are associated with the branches of the celiac artery. Other lymph nodes in the abdomen are associated with the superior and inferior mesenteric arteries. The celiac lymph nodes are grouped into three sets: the gastric, hepatic and splenic lymph nodes.

Detailed explanation-4: -A first lymph node system is located close to the liver, i.e., in the transverse fissure (very small nodes, about 2 mm diameter), posterior to the portal vein, posterior to the pars transversa of the left portal vein, and associated with the left hepatic artery.