PATHOLOGY

Detailed explanation-1: -Coursing along the superior border of the pancreas, it runs through the splenorenal ligament, anterior to the left kidney and its suprarenal gland, and posterior to the stomach. Upon reaching the lateral margin of the pancreas, the artery ascends to enter the hilum of the spleen.

Detailed explanation-2: -The superior mesenteric artery (SMA) comes off from the anterior surface of the aorta just below the origin of the celiac trunk at the level of L1 behind the neck of the pancreas. Then, it descends down in front of the uncinate process and the third (horizontal) part of the duodenum to enter the small bowel mesentery.

Detailed explanation-3: -The splenic artery runs along the upper border of the pancreatic body and splenic vein runs deep to it. The tumour in the body and tail of pancreas may need, thus removal of spleen as an en bloc.

Detailed explanation-4: -The pancreatic branches or pancreatic arteries are numerous small vessels derived from the splenic artery as it runs behind the upper border of the pancreas, supplying its body and tail.