interstitial lung diseases Flashcards

1
Q

most common ILDs of UNKOWN etiology. name the 3

A

idiopathic pulmonary fibrosis
sarcoidosis
pulmo fibrosis assoc with CTDs

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2
Q

most common ILDs with KNOWN etiology

A

occupational and environmental exposures, inorganic and organic dusts, fumes or gases

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3
Q

immunopathogenic response that leads to pulmo fibrosis

A

aberrant wound healing

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4
Q

2 major histopathologic patterns in ILD

A
  1. granulomatous lung disease
    differentials: HP and sarcoidosis
  2. inflammation and fibrosis
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5
Q

most common presentation of ILD based on duration of illness

A

chronic

unusual to have acute or episodic form

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6
Q

true or false. ILDs most common age occur >60 years old

A

false.
most common are 20-40 years old
but IPF mostly seen in >60years old

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7
Q

true or false. ILD in hermann pudlak syndrome and those assoc with CTDs are common in women

A

true

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8
Q

most common PE seen in ILDs

A

tachypnea and bibasilar end inspiratory rales

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9
Q

most common initial finding on cxr in ILD

A

bibasilar reticular pattern

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10
Q

diagnostic value of BAL in ILD for sarcoidosis

A

lymphocytosis

CD4:CD8 ratio >3.5

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11
Q

most common form of ILD is IPF, it has poor response to. chemotherapy.

what is the histologic finding seen in IPF?

A

usual interstitial pneumonia UIP
alternating areas of normal lung interstitial inflammation and fibrosis
“honeycombing appearance”

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12
Q

ILD seen in younger, nonsmoking women with similar presentation of ILD.
Seen in CTD, drug induced ILD, chronic hypersensitivity pneumonitis

A

nonspecific interstitial pneumonia

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13
Q

rare, fulminant, diffuse alveolar damage seen in patients >40years old

A

acute interstitial pneumonia (Hamman Rich Syndrome)

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14
Q

clinicopathologic syndrome of unknown etiology

A

cryptogenic organizing pneumonia

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15
Q

Rare ILD found almost exclusively in cigarette smokers

A

desquamative interstitial pneumonia (DIP)

histo: extensive accumulation of macrophages in intraalveolar spaces

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16
Q

DIP characterized by accumulation of macrophages in the PERIBRONCHIAL ALVEOLI

A

RB ILD respiratory bronchiolitis associated ILD

remember DIP usually have macrophages in the INTRAALVEOLAR SPACES

17
Q

virtually diagnostic for Pulmonary Langerhans Cell Histiocytosis

A

combination of nodules and thin walled cysts

pneumothorax occurs in ~25%

18
Q

majority of CTDs are treated with oral glucocorticoids and immunosuppressive agents except?

A

progressive systemic sclerosis

19
Q

classic PFT finding for progressive systemic sclerosis

A

restrictive pattern and impaired diffusing capacity - BEFORE. and clinical disease appears

20
Q

dominant histo finding in PSS

21
Q

autoimmune disease with a neutralizing IgG antibody against GM CSF

A

Pulmonary alveolar proteinosis PAP

common in 30-50 years old male with progressive exertional dyspnea

22
Q

highly specific and sensitive for diagnosis of acquired PAP

A

elevated serum anti GM CSF titers

23
Q

true or false. BAL fluid compared to serum Anti GM CSF better correlates with severity of PAP

24
Q

rare condition in premenopausal women. suspected in young women with “emphysema” and recurrent pneumothorax

A

pulmonary lymphangioleiomyomatosis LAM

25
Syndromes with ILD with diffuse alveolar hemorrhage presetns with massive hemoptysis. true or false?
false. NO hemoptysis but with new alveolar opacities, falling hemoglobin levels, and hemorrhage mainstay therapy: IV methylprednisolone