Chest X-Rays

Question 1

Common causes of lobar collapse

Answer 1

Lung cancer- most common cause of cancer in older adults
Asthma- due to mucous plugging
Foreign Body

Question 2

Signs of Lobar collapse on a CXR

Answer 2

Tracheal deviation towards the side of the collapse
Mediastinal shift towards the side of the collapse
Elevation of the hemidiaphragm
Right sided hilar mass- due to collapse of right upper lobe and VICE VERSA
As a consequence the hyperexpanded right middle and lower lobes are hyperlucent (‘blacker’).

Question 3

Chest X ray : white lung lesions causes

Answer 3

- Consolidation
Pleural Effusion
-Collapse
-Pneumonectomy
-Specific lesions- eg tumours
-Fluid- pulmonary oedema

Question 4

White out of a hemithorax with tracheal pulled toward white out: causes

Answer 4

Pneumonectomy
Complete lung collapse e.g. endobronchial intubation
Pulmonary hypoplasia

Question 5

White out of hemithorax with trachea central causes

Answer 5

Consolidation
Pulmonary oedema (usually bilateral)
Mesothelioma

Question 6

White out of the hemithorax- trachea pushed away from the white-out

Answer 6

Pleural effusion
Diaphragmatic hernia
Large thoracic mass

Question 7

Pulmonary oedema signs on a chest x ray

Answer 7

Upper lobe deviation
Kerley p lines- both sides of pleura
Bat wing shadowing
Pleural effusion