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Flashcards in Respiratory Radiology Deck (28)
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1

What are the findings of a normal chest xray?

normal bone markings with overlying soft tissue 

heart

central vascular and airway markings 

parenchyma and air 

2

Which pattern of pneumonia shows a "tree-in-bud" pattern?

bronchopneumonia 

3

Which pattern of pneumonia shows a lobar delineation?

 

What will you see on pathology?

lobar pneumonia 

 

Red hepatization

4

 

What pathogen causes a bulging fissure?

 

Klebsiella 

5

Which bacteria are more likely to cause a lobar pneumonia?

 

 

S. Pneumoniae 

S. Aureus 

Gram - 

6

Which bacteria are more likely to cause abscess?

(often seen with lobar PNA)

Klebsiella

S. aureus 

Anaerobes 

7

Which disease shows an abnormal dilatation and extension of airway spaces into peripheral fields?

Bronchiectasis 

8

what is the diagnosis in someone with situs inversus with dextrocardia?

primary ciliary dyskinesia 

(Kartagener syndrome) 

9

What causes Bat Wing infiltrates?

Pulmonary edema (hydrostatic-2' to HF)

Pneumonias (viral)

HSN pneumonitis 

Inhalation injury 

10

Anything favoring (proximal or distal) vascular or airway involvement will cause Bat Wing infiltrates?

Proximal

11

Anything favoring (central or peripheral) involvement leads to Reverse Bat Wing?

 

What specific condition can cause reverse bat wing? 

Peripheral

 

 

Interstitial Pulmonary Fibrosis/Sarcoidosis 

12

Why does HSN pneumonitis cause bat-wing on xray?

 

Why does Sarcoidosis cause reverse bat-wing on xray?

Because it follows airways 

 

Because it follows lymphatics 

13

What conditions cause White Out?

ARDS (most common)

Severe pneumonia 

Severe Atelectasis 

Diffuse hemorrhage

Malignancy 

14

Histoplasmosis shows what kind of nodularity? 

diffuse or laminated 

15

Hamartomas show what type of nodularity? 

popcorn 

16

If you see a laminated, diffuse nodule on XR, what is likely?

old granulomas 

17

What are the two charcteristics to look for if worried about malignancy?

tumor characteristics 

patient characteristics 

18

what specific factors should be considered when deciding if a lesion should be biopsied?

age

smoker

size

growth 

solid 

lack of calcification

19

What malignancies can look like pneumonia and be bilateral?

mucinous adenocarcinoma

adenocarcinoma in situ 

20

What malignancy has a ground glass appearance?

adenocarcinoma in situ 

21

What malignancy has bubble lucencies?

invasive adenocarcinoma

22

What malignancy shows cavitation?

squamous cell carcinoma

23

What causes wedge-shaped atelectasis?

Resorption (which is from an obstruction) 

obstruction can be foriegn body, mucus, tumor

24

What cancers may cause wedge-shaped atelectasis?

squamous carcinoma

carcinoid tumor 

25

A patient will have a more obvious tension PTX on XR when (inhaling or exhaling) ?

exhaling

26

A primary PTX is due to a limited introduction of air into which space?

 

 

thoracic space

 

usually due to 1' lung pathology

27

tension PTX us due to what?

"one-way" unchecked accumulation of air

usually from chest wall trauma 

causes mass effect with midline shift 

28

Alveolar processes are more likely to show what?

ground glass or diffuse "white out"