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Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
Hypersensitivity pneumonitis ... • Radiation pneumonitis ... Idiopathic Interstitial Pneumonias ... Idiopathic pulmonary fibrosis ... #diagnosis #differential
Cough - Diagnostic Schema

Infectious: URTI, LRTI, Bacterial, Viral
Irritant/Exposure: Allergic, Post-infectious, Pneumonitis, ACEi, PTX, Foreign Body
Airway Disease:
, Pneumonitis, ACEi ... COPD, Sinusitis, Bronchiectasis ... Autoimmune Vasculitis, ILD ... Malignancy: Lung ... Acute #Chronic #Differential
Figure 3 HRCT-LUS correlation in normal lung, pulmonary congestion, rheumatoid lung disease, idiopathic pulmonary fibrosis.
Notes: (A)
idiopathic pulmonary fibrosis ... opacities and traction bronchiectasis ... abnormalities, traction bronchiectasis ... #Correlation #Table ... #ILD #Findings
Lung Nodules - Differential Diagnosis by Distribution
 • Centrilobular: Hypersensitivity Pneumonitis, RB-ILD, Pneumoconiosis, Infectious Bronchiolitis, Vasculitis,
Lung Nodules - Differential ... Hypersensitivity Pneumonitis ... , RB-ILD, Pneumoconiosis ... , Infectious Bronchiolitis ... BrighamChiefs #Lung
Diagnostic algorithm for idiopathic pulmonary fibrosis, in part adapted from the ATS/ERS consensus statement. HRCT =
idiopathic pulmonary fibrosis ... computerised tomography; ILD ... = interstitial lung ... idiopathic pulmonary fibrosis ... usual interstitial pneumonitis
Schematic classification of interstitial lung diseases according to aetiology. The finding of histological usual interstitial pneumonitis
of interstitial lung ... usual interstitial pneumonitis ... idiopathic pulmonary fibrosis ... non-specific interstitial pneumonitis ... #ILD #Classification
Causes of Cough and Hemoptysis
Acute Inflammation 
 - Laryngitis 
 - Tracheobronchitis 
 - Mycoplasma and
Bronchitis - Bronchiectasis ... Tuberculosis - Lung ... Cancer of the Lung ... Cough #Hemoptysis #Differential ... #Causes #Table
Causes of Nail Clubbing - Mnemonic 
Cyanotic Heart Disease, Cystic Fibrosis
Lung Cancer, Lung abscess 
Ulcerative Colitis
Disease, Cystic Fibrosis ... Lung Cancer, Lung ... Ulcerative Colitis Bronchiectasis ... Nails #Mnemonic #Differential
Nail Clubbing - Differential Diagnosis Algorithm
Bronchopulmonary Disease
 • Bronchiectasis
 • Chronic Lung Infection
 • Lung Cancer
Nail Clubbing - Differential ... Bronchopulmonary Disease • Bronchiectasis ... • Chronic Lung ... InfectionLung ... Asbestosis • Cystic Fibrosis
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... bronchiolitis (RB-ILD ... Hypersensitivity pneumonitis ... HRCT #ChestCT #Differential ... #Table #Distribution