Chest x-ray interpretation Flashcards
1
Q
differentials of cavitating lung lesion?
A
- abscess (Staph aureus, Klebsiella and Pseudomonas)
- squamous cell lung cancer
- tuberculosis
- Wegener’s granulomatosis
- pulmonary embolism
- rheumatoid arthritis
- aspergillosis, histoplasmosis, coccidioidomycosis
2
Q
differentials of lobar collapse?
A
common causes?
- lung cancer
- asthma
- foreign body
3
Q
signs of lobar collapse?
A
- tracheal deviation towards the side of the collapse
- mediastinal shift towards the side of the collapse
- elevation of the hemidiaphragm
4
Q
in which cancers, are lung mets commonly seen?
A
- breast
- colorectal
- renal cell
- bladder
- prostate
5
Q
what are cannonball metastases?
A
multiple, round well-defined lung secondaries
most commonly seen in RCC
but can also be seen in prostate and choriocarcinoma
6
Q
differentials for mediastinal widening?
A
- technical factors - patient positioning
- vascular- thoracic aortic aneurysm
- lymphoma
- retrosternal goitre
- teratoma
- tumours of the thymus
7
Q
how would you further investigate mediastinal widening?
A
- lateral view chest x-ray
2. CT scan
8
Q
where should the NG tube be identified in a chest x-ray?
A
end of the tube should be below the diaphragm in the stomach
incorrectly positioned NG –> aspiration pneumonia, death
9
Q
features of pulmonary oedema?
A
- interstitial oedema
- bat wing appearance
- upper lobe diversion
- Kerley B lines
- pleural effusion
- cardiomegaly if there is cardiogenic cause
10
Q
differentials of white lung lesions?
A
- consolidation
- pleural effusion
- collapse
- pneumonectomy
- specific lesions e.g. tumours
- fluid e.g. pulmonary oedema
11
Q
causes of trachea pulled toward the white out?
A
- Pneumonectomy
- Complete lung collapse e.g. endobronchial intubation
- Pulmonary hypoplasia
12
Q
causes of central trachea?
A
- consolidation
- pulmonary oedema (usually bilateral)
- mesothelioma
13
Q
causes of
A
