Olecranon bursa: keep the fluid in the right layer

Question 1Where does olecranon bursitis sit?

1. aWithin the triceps muscle belly
2. bDeep to the olecranon cortex
3. cInside the elbow joint
4. dJust under the skin, on top of the olecranon and the triceps insertion

Question 2Why use very little probe pressure?

1. aThe olecranon breaks easily
2. bPressure creates colour aliasing
3. cPressure can empty the bursa and hide the fluid
4. dIt makes the tendon look torn

Question 3What does a complex bursa with debris and surrounding hyperaemia mean?

1. aIt is definitely sterile
2. bIt is definitely septic
3. cIt is a joint effusion
4. dInfection is more likely, but the image cannot prove or exclude it

Question 4Swollen, cobblestoned fat with no collection suggests what?

1. aA joint effusion
2. bCellulitis
3. cSimple bursitis
4. dA fracture

Question 5Fluid is found deep in the posterior recess of the joint rather than in the bursa. What does this change?

1. aIt can be ignored
2. bNothing, it is still bursitis
3. cIt confirms gout
4. dIt is a joint effusion, so think about septic arthritis and joint aspiration