Spleen

Question 0

Functions of the spleen

Answer 0

Immune response
Phagocytosis
Haematopoesis
Storage of red blood cells

Question 1

Where does the spleen lay?

Answer 1

Left upper quad.
9th-10th rib
12cmx7cmx3cm

Question 2

Four relations of the visceral surface of the spleen

Answer 2

Anterior surface of the left kidney
Splenic flexure of the colon
Fundus of the stomach
Tail of the pancreas

Question 3

What are accessory spleens called

Answer 3

Splenunculi

Question 4

Branches of the splenic artery

Answer 4

Comes from coeliac trunk

Short gastric
Left gastro epiploic

Question 5

Why do you get wedge infarcts in the spleen

Answer 5

Arteries do not bridge internally

Question 6

Course of the splenic vein

Answer 6

Branches from splenic Hilum join to form the splenic vein. Sometimes a superior polar vein joins outside the Hilum. The splenic vein is joined by the IMV and SMV to form the portal vein.

Question 7

Two rules of thumb to determine an enlarged spleen

Answer 7

Extends:
Ventral to the aorta
More caudally to the liver

Question 8

How does the appearance of the spleen differ in the arterial and venous phase

Answer 8

Arterial: Zebra stripes
Venous: Homogeneous

Question 9

How does the appearance of the spleen differ compared to the liver on T1 and T2 images.

Answer 9

T1. Lower signal to liver

T2. Higher signal to liver

Question 10

On AXR what should you look for to rule out splenic trauma.

Answer 10

Rib fractures 9-11th