Advanced Splenic Hilum Quiz

Q1. Why can ligation of individual terminal splenic arterial branches permit partial splenic resection?

• Splenic segments are separated by cartilage
• All splenic tissue receives blood only from short gastric arteries
• The splenic artery has no branches at the hilum
• Terminal arterial branches supply relatively discrete splenic vascular territories

Q2. What surgical risk arises from the pancreatic tail's proximity to the splenic hilum?

• Pancreatic tail injury with postoperative pancreatic leakage
• Injury to the right recurrent laryngeal nerve
• Obstruction of the urethra
• Rupture of the urinary bladder

Q3. Why may splenic hilar dissection be performed close to the spleen during spleen removal when preservation of the pancreatic tail is important?

• It can reduce the risk of injuring the nearby pancreatic tail
• It removes the need to control splenic vessels
• It avoids the diaphragm entirely
• It prevents all gastric blood flow

Q4. Which anatomical feature underlies the concept of superior and inferior vascular territories of the spleen?

• Terminal branching of the splenic artery near the hilum
• Division of the spleen by the pancreatic duct
• Attachment of the spleen to the falciform ligament
• Drainage by the inferior vena cava

Q5. Why can traction at the splenic hilum endanger the gastric fundus?

• The portal vein directly connects the spleen to the fundus
• The left renal artery enters the stomach
• The common bile duct attaches the fundus to the spleen
• Short gastric vessels connect the hilar region with the gastric fundus

Q6. How does the splenic hilum relate to the lesser sac?

• It lies within the right paracolic gutter
• It lies adjacent to peritoneal folds at the left side of the lesser sac
• It forms the epiploic foramen itself
• It is located in the pelvic cavity

Q7. Why is vascular variation at the splenic hilum surgically important?

• The splenic artery always enters through the diaphragmatic surface
• Terminal splenic vessel branching patterns vary between individuals
• The spleen is always supplied by a single vessel with no branches
• Hilar veins never vary

Q8. Which relationship best explains why distal pancreatic surgery and splenic hilar surgery are anatomically linked?

• Pancreatic tail and splenic vessels converge near the hilum within the splenorenal ligament
• The pancreatic head lies inside the splenic hilum
• The uncinate process forms the splenic capsule
• The spleen shares a duct with the pancreas

Q9. How does the absence of extensive intraparenchymal arterial anastomosis affect splenic vascular territories?

• Occlusion of a terminal branch can produce localized segmental ischemia
• Splenic perfusion depends entirely on the inferior mesenteric artery
• All terminal branches freely compensate for one another
• Every arterial occlusion immediately affects only the stomach

Q10. Which statement best integrates the anatomy of the splenic hilum?

• It is a retroperitoneal duct connecting the spleen to the kidney
• It is an avascular region on the superior splenic border
• It is the smooth convex surface facing the diaphragm
• It is the visceral gateway for splenic vessels, nerves, lymphatics, and adjacent peritoneal ligament relationships