Radiology

Question 1

Heart borders on normal CXR

Answer 1

RA

LV

Question 2

Right lung properties

Answer 2

3 lobes: upper, middle, lower
horizontal fissure - between RUL, RML
oblique fissure - between RML, RLL

Question 3

Left lung properties

Answer 3

2 lobes: upper, lower
oblique fissure - between LUL and LLL
Lingula - part of LUL

Question 4

Silhouette sign

Answer 4

Loss of the normal borders between adjacent thoracic structures
You should see a silhouette sign on normal CXR. This sign becomes lost in disease

Question 5

Loss of right heart border

Answer 5

Pathology in the RML

Question 6

Loss of the right hemi-diaphragm

Answer 6

Pathology in the RLL

Question 7

Loss of the left heart border

Answer 7

Pathology in the LUL

Question 8

Loss of the left hemi-diaphragm

Answer 8

Pathology in the LLL

Question 9

PET scan

Answer 9

Inject a glucose analogue into patient and this shows metabolically active areas (e.g. tumours)
Detects nodal metastases and distant metastases

Question 10

Ultrasound (US)

Answer 10

Doesn’t travel well through air or bone

Travels well through fluid (i.e. pleural effusion)