Pulm: ILD Flashcards
What is the most common cause of ILD?
idiopathic
This class of pulmonary disorders cause progressive scarring of lung tissue
ILD
This disease is a process of fibrosis and aberrant healing response. It is NOT infectius
ILD
A patient presents with the following:
Progressive DOE
Persistent non-productive cough
ILD
What two signs/sxs are uncommon in ILD?
wheezing, CP
What is the duration of sxs for the following ILDs?
Acute idiopathic interstitial pneumonia
eosinophilic pneumonitis
hypersensitivity pneumonitis
Cryptogenic organizing pneumonia
Acute (days/weeks)
What is the duration of sxs for the following ILDs?
Sarcoidosis
Alveolar hemorrhage
Cryptogenic organizing pneumonia
Connective tissue disease
Subacute (weeks/months)
What is the duration of sxs for the following ILDs?
IPF
Sarcoidosis
Pulmonary langerhans cell histiocytosis
Chronic hypersensitivity pneeumonitis
Chronic (months-years)
Digital clubbing is a sign usually associated with _______
advanced disease
Erythema nodosum can be seen in what type of ILD?
sarcoidosis
Grottron’s papules can be seen in what type of ILD?
dermatomyositis
What lung sound is usually heard with ILD and where?
crackles at lung bases
What specialties should be involved in diagnosing ILD?
pulmonology
radiology
pathology
What imaging and diagnostic test are used to diagnose ILD?
HRCT
Tissue biopsy
What three signs present on CXR indicate ILD?
ground glass
reticular opacity
honeycombing
Honeycombing indicates a _______ prognosis
poor prognosis
What is the most common finding on CXR in ILD?
reticular opacity
On HRCT, you notice the distribution of disease in the upper zones of the lungs. This indicates what etiology?
inhalation related diseases (except asbestosis)
On HRCT, you notice the distribution of disease among the lower zones, this indicates…
IPF, connective tissue dz, asbestosis
What serologic studies can be ordered to rule out subclinical autoimmune disease?
ANA, RF ,CCP
What serologic studies would be useful for pulmonary hemorrhage or suspicious systemic symptoms/vasculitis?
ANCA
antiphospholipid Abs
Antistreptococcal Abs
Describe the results of PFTs in ILD (TLC, FEV-1, FVC)
Decreased TLC
Decreased FEV-1 and FVC
FEV-1/FVC ratio normal/increased
What PFT is sometimes the only finding of early ILD?
Decreased DLCO
What results can be expected on ABG with ILD?
hypoxemia
Respiratory alkalosis
What is the gold standard for dx of ILD?
lung biopsy
What is the contraindication to lung biopsy?
honeycombing
What are the three types of lung biopsy?
Transbronchial
Surgical biopsy
EBUS-TBNA
For what suspected condition should EBUS-TBNA be performed?
sarcoidosis
Transbronchial biopsy is helpful to biopsy what locations?
central
Which condition has the following characteristics?
MC ILD
Age > 50
Male
TOBB use
Idiopathic pulmonary fibrosis
A patient has the following S/S… What are these concerning for?
Inspiratory velcro crackles
digital clubbing
gradual onset of DOE
non-productive cough
Idiopathic pulmonary fibrosis
What test offers a good baseline for IPF?
6 minute walk test
You receive the following results after running diagnostic tests… what condition should you be concerned for?
CXR:
- peripheral reticular opacities
- honeycombing
HRCT:
- bibasilar reticulonodular opacity
- traction bronchiectasis
- honeycombing
PFTs:
-restrictive pattern
IPF
IPF has what pattern on HRCT?
UIP
What condition should be treated (even if asymptomatic) in patients with IPF?
GERD
What two pharmacologic interventions can help manage IPF? Are they curative?
Nintedanib
Pirfenidone
not curative
what condition presents with the following characteristics?
multisystem inflammatory dz
non-caseating granulomas
secretes ACE
Mostly african american
female predominance
Sarcoidosis
What type of ILD can present with the following extrapulmonary findings?
erythema nodosum
lupus pernio
granulomatous uveitis
arthralgias
Sarcoidosis
A patient presents with:
DOE CP Cough Hemoptysis Systemic complaints fever anorexia
Sarcoidosis
The following diagnostic study results indicate…
PFTs: restrictive, can be obstructive
CXR: Hilar adenopathy
Labs:
elevated serum ACE
elevated calcium
hypercalciuria
Biopsy: EBUS-TBLB
Sarcoidosis
Stage 1 Sarcoidosis CXR:
hilar adenopathy
Stage 2 Sarcoidosis CXR:
hilar adenopathy + diffuse infiltrates
Stage 3 Sarcoidosis CXR:
diffuse parenchymal infiltrates
Stage 4 Sarcoidosis CXR:
pulmonary fibrosis
What is the treatment for stage 2+ sarcoidosis?
high dose CS
immunosuppressants if relapsing/multisystem
Lung transplant in stage 4
Silicosis
Coal worker’s
asbestosis
These are types of…
pneumoconiosis
Which pneumoconiosis has the following characteristics:
- inhalation of quartz
- occupational risk, esp. mining
- smoking increases risk
Silicosis
What can be seen on HRCT in acute silicosis?
crazy paving pattern
What diagnostics should be ordered to assess silicosis and coal worker’s pneumonconiosis
CXR, HRCT
PFTs
A miner presents with:
CXR:
- eggshell calcifications
- angel’s wing appearance
- pleural abnormalities
PFTs showing restrictive pattern
silicosis and coal worker’s pneumonconiosis
What signs/sxs are common physical exam with silicosis and coal worker’s pneumonconiosis?
tachypnea
prolonged expiration
rhonchi, wheezing, rales
What two sxs indicate advanced silicosis/coal worker’s pneumonconiosis?
cyanosis
cor pulmonale
What is an important question to ask on hx for asbestosis?
occupational hx
A patient presents with:
digital clubbing
dry cough
end-inspiratory rales
insidious onset of:
dyspnea
reduced exercise tolerance
nonspecific chest discomfort
Asbestosis
You receive the following results from diagnostic studies:
CXR:
- opacity in lower lungs
- calcified pleural plaques
PFTs: restrictive pattern
Asbestosis
Where are calcified pleural plaques typically found on CXR in asbestosis?
diaphragmatic/parietal pleura of 6-9th ribs
Will immunotherapeutic drugs or CS be effective tx for asbestosis?
no
What will greatly increase the already high risk for CA . with asbestosis?
smoking (6x)
This condition is defined as:
inflammatory syndrome of lungs caused by repetitive inhalation of antigens
Hypersensitivity pneumonitis
Is hypersensitivity pneumonitis reversible?
yes
What are three classifications of exposures that can cause hypersensitivity pneumonitis?
bacteria, fungi, mold
proteins/chemicals
Environmental exposures
Acute, subacute or chronic hypersensitivity pneumonitis?
flu-like syndrome w/in hours of exposure
acute
Acute, subacute or chronic hypersensitivity pneumonitis?
insidious onset
productive cough
dyspnea
fatigue
occurring over period of weeks
subacute
Acute, subacute or chronic hypersensitivity pneumonitis?
progressive dyspnea, cough, fatigue, malaise
chronic
On physical exam, a patient with the following findings should be concerning for…
diffuse, fine bibasilar crackles fever teachypnea muscle wasting clubbing weight loss
Hypersensitivity pneumonitis
A patient presents with the following results from imaging…
interstitial inflammation
honeycombing
centrilobular fibrosis
peribronchiolar fibrosis
Hypersensitivity pneumonitis
What is the best course of tx for hypersensitivity pneumonitis?
avoidance +/- CS
What ILD has the following characteristics?
Necrotizing granuloma
systemic vasculitis of small-medium vessels
common in northern european descent
men = women
GPA
A patient presents with the following signs and symptoms:
- recurrent respirator infx
- nonspecific sxs: fever, weight loss, night sweats, low appetite
Pulm:
-Infiltrates, cough, hemoptysis, dyspnea, stridor
Renal: failure, erythrocyte casts
Skin: palpable purpura, ulcers
HEENT: saddle nose deformity
GPA
Tissue biopsy shows vasculitis, granulomatous inflammation…
GPA
CXR shows: nodules +/- cavitation
CT Chest:
-stellate shaped peripheral pulmonary arteries (vasculitis sign)
- feeding vessels leading to nodules
- Diffuse hemorrhage
GPA
What labs should be ordered for evaluating GPA? (5)
ESR/CRP CBC CMP UA C-ANCA
The prognosis of GPA is improved with…
cyclophosphamide
What are the two main categories of treatment-related ILD?
drug induced
radiation induced
What connective tissue disorders are associated with ILD? (5)
RA SLE Poly/dermatomyositis Sjogrens Scleroderma
The following conditions are associated with…
respiratory bronchiolitis ILD
desquamative interstitial pneumonitis
pulmonary langerhans cell histiocytosis
Smoking related ILD
What is a major complication of ILD?
cor pulmonale/CVD