Radiology

Question 1

Imaging for intussusception and findings?

Answer 1

USS
Target sign/Donut sign

Question 2

Imaging in volvulus and findings in sigmoid vs caecal?

Answer 2

X-ray
Sigmoid = coffee bean sign
Caecal = small bowel obstruction

Question 3

Imaging of choice in suspected pneumothorax?

Answer 3

CXR

Question 4

Imaging for suspected brain haemorrhage?

Answer 4

Non-contrast CT

Question 5

Findings on CT in subarachnoid haemorrhage?

Answer 5

Hyperdense
In cisterns and sulci (star shape)

Question 6

Findings on CT in subdural haemorrhage?

Answer 6

Crescentic shape (banana)
Acute = hyperdense
Chronic = hypodense

Question 7

Findings on CT in extradural haemorrhage?

Answer 7

Biconvex/lentiform shape (lemon)
Limited by suture lines
Acute = hyperdense

Question 8

Preferred imaging for colorectal cancer?

Answer 8

Colonscopy
CT scan

Question 9

Findings in achalasia vs. oesophageal cancer on barium swallow?

Answer 9

Achalasia = bird beak
Oesophageal cancer = apple core

Question 10

What findings may be seen on x-ray for psoriatic arthritis (4)?

Answer 10

‘Pencil-in-cup’ appearance
Erosions and new bone formation
Periostitis
Dactylitis

Question 11

What may be seen on CT head in intracranial pressure?

Answer 11

Sulcal and ventricular effacement
Loss of grey/white matter
Mass effect/midline shift