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29 Cards in this Set
- Front
- Back
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What are 3 types of emphysema
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centrilobular
panlobular paraseptal |
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What are the findings of centrilobular emphysema on CT
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focal lucencies involving the upper lobe wc do not have recognizable walls. There is spotty areas of black
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Which lobe does centrilobular emphysema tend to predominate
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the upper lobes
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What is the appearance of centrilobular emphysema on plain film
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greater lucency of the upper lung fields
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What is centrilobular emphysema associated
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smoking almost 100%
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Do you see focal lucencies with panlobular emphysema
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no
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What do you see in panlobular emphysema
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lung is:
too big too black and vessels are too small |
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What is panlobular emphysema associated with
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cigarettes or alpha 1 antitrypsin
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What are the CXR findings of panlobular emphysema
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lower lower lobes appear more lucent (not able to see vessels as much)
lungfields are enlarged |
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What part of the lungs does panlobular emphysema affect
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lower long fields
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What is paraseptal emphysema
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it is lung lucencies below the pleural surface
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What is paraseptal emphysema associated with
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centrilobular emphysema
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How do yo differentiate paraseptal emphysema from honeycombing
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it effects the upper lobes
no fibrosis associated centrilobular emphysema |
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What part of the lungs does paraseptal emphysema tend to affect
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the upper lung fields
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What 3 descriptive factors of lung cyst
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localized air filled lesions that are well circumscribed
thin but visible walls |
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What is the ddx for lung cyst
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honeycombing
emphysema (bullae) pneumatoceles HP (rare) histiocytosis (rare) LAM and tuberous sclerrosis Sjogrens sydrome CVD with lipoid interstial pneumonia (rare) |
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What are the rare causes of lung cyst mentioned
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HP
Histiocytosis LAM Sjogrens CVD with LIP |
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What are the common causes of lung cyst
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emphysema
pneumatoceles with pneumonia honeycombing |
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What type of pneumonia tends to develop pneumatoceles
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PCP
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What are the characteristics of the cysts in histiocytosis
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thick or thing walled cyst that are irregular in shape
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What part of the lungs do the cyst of histiocytosis tend to occur
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the upper lobes
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What is histiocytosis cystic disease associated with
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smoking
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What are the characteritics of the cyst in LIAM
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thin walled and round in shape
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What happens to the overall lung volume in LAM
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increased lung volumes
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Is the are any predominant area of the lung that the cyst tend to occur in LAM
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no
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What demographic does LAM effect
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woman of childbearing age
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What percent of patients with TS have LAM
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1% (so occasionally in men too)
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What is a patient with sjorgrens syndrome at risk of developing
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Lymphoid interstial pneumonitis (LIP)
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What are the characteristics of the cyst in LIP
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thin walled
rounded not as numerous as in LAM (few dozen) diffuse in distribution |
