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Respiratory: Chronic Infections > Intrapulmonary Abscess > Flashcards

Flashcards in Intrapulmonary Abscess Deck (16)
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1

what is it?

abscess is a localised suppuration associated with cavity formation on CXR/CT

2

what differential does it come from?

the same as cancer and TB

3

what are the causes?

aspiration pneumonia - lung abscess is a complication of pneumonia. This is quite rare though

TB

Pneumonia caused by certain species

Septic emboli usually containing staphylococci

4

what does a history of alcohol consumption or impaired sawllowing in a patient with pneumonia indicate?

aspiration pneumonia

5

what organisms cause abscess by pneumonia ?

bacteria and fungi

6

which bacteria cause abscess by pneumonia ?

particularly staph aureus or klebsiella pneumonia

staphylococcus - particularly post flu

e.coli

gram negative organisms

7

which fungi cause abscess by pneumonia?

aspergillus : this will generally cause abscess in existing cavities but can cause them too

8

what bacteria do septic embolie usually contain?

staphylococci

these cause multiple emboli.

9

when would you get septic embolli?

if you are bacteraemic

if you have right sided endocarditis

if you have infected DVT

10

which group if suscptible to septic emboli?

IV drug users

they inject into groin and get DVT, get infection

11

what can happen to the infection in IV drug users DVT?

can get PE or abscesses, these cause massive mortality and haemoptysis

12

what are the symptoms?

indolent presentation

weight loss

lethargy

cough may have sputum

usually there is a preceding illness of some sort

swinging fever

13

what are the signs?

high inflammatory markers

little to find in the chest

clubbing occurs in chronic suppuration

foul smelling sputum in large quantities

14

why does the sputum smell bad?

because of the anaerobic organisms

15

what may the preceding illnesses be ?

pneumonic infection

post viral

foreign body

16

what is the treatment

guided by culture results, surgical drainage