Chapter 17. Spleen
Splenectomy results in the loss of what immunologic protein?
C. Membrane attack complex
Answer: A. Tuftsin and properdin are immunologic proteins produced by the spleen. After splenectomy these 2 immunologic proteins are absent, increasing the susceptibility to encapsulated organisms.
What is the most common cause of splenic artery/vein thrombosis?
E. Antiphospholipid syndrome
Answer: B. Pancreatitis is the most common cause of splenic artery/vein thrombosis.
What ligament contains the vascular supply to the spleen?
B. Gastrosplenic ligament
C. Phrenosplenic ligament
Answer: B. The gastrosplenic ligament contains the splenic artery/vein and short gastric arteries. In the setting of portal hypertension, the splenorenal ligament may contain a vascular supply.
What is the treatment for bleeding gastric varices in the setting of sinistral hypertension?
B. Transjugular intrahepatic portosystemic shunt
Answer: D. Splenectomy is the treatment for isolated gastric varices in the setting of sinistral hypertension.
Which of the following is not an indication to repair a splenic artery aneurysm?
A. Asymptomatic and size >2 cm
C. Symptomatic and size = 1.5 cm
D. Presence of collagen vascular disease
Answer: D. Resection, with or without splenectomy, or embolization of a splenic artery aneurysm should be performed in pregnant patients, asymptomatic aneurysms >2 cm, and any symptomatic aneurysm.
When should a patient be vaccinated prior to elective splenectomy?