Detecting Lobar Collapse

Question 1

4 main patterns when looking at cxr

Answer 1

Consolidation
Lines
Dots/nodules shows a mass
Atelectasis

Question 2

What are the direct signs of lobar collapse ?

Answer 2

Fissures displaces
Opacification of collapsed lobe due to loss of air

Question 3

What are the indirect signs of a collapsed lobe on CXR?

Answer 3

Hilum displaced
Mediastinal shift towards collapsed side
Loss of vol in ipsilateral hemithorax
Ipsilateral diaphragm elevation
Crowding of ribs
Compensatory hyperlucency
Silhouette of diaphragm or heart boarder

Question 4

Patterns of lobar collapse

Answer 4

Question 5

More lobar collapse features

Answer 5

Question 6

Answer 6

Golden s signs due to right hilar mass

Question 7

Answer 7

Left upper lobe collapse
Luftsichel sign

Question 8

Answer 8

Chronic middle lobe collpase

Question 9

Answer 9

Lingular collpase

Question 10

Question 11

Answer 11

Opacification over lower lobes

Question 12

Answer 12

Patients usually very sick and in pain. Shallow breathing.

Question 13

Answer 13

Pneumonia with some form of collapse

Question 14

Normal CTR

Answer 14

50%

Question 15

Answer 15

LVH-apex move up and down
RVH-apex up and out
LAH-double density behind the heart
RAH-bulge at right heart boarder

Question 16

Answer 16

TB pericarditis

Question 17

Stages of congestive heart failure

Answer 17

Question 18

Answer 18

Acute congestive heart failure

Question 19

Pumpnary oedema due to non cardiac cause

Answer 19

Head injury
Renal failure
Drugs
Toxins
ARDS(acute respiratory distress syndrome)
Near drowning