19 results
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
Interstitial Lung ... alveolitis): • Hypersensitivity ... Bird fanciers' lung ... (coal workers' lung ... Pulmonary Langerhans cell
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... bronchiolitis (RB-ILD ... ) - Langerhans cell ... histiocytosis - Hypersensitivity ... #Differential #Table
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
Hypersensitivity ... Type Ill - IgG and ... sclerosis #Hypersensitivity ... #Types #Classification ... Diagnosis #Reactions #Table
Approach to the diagnosis of chronic hypersensitivity pneumonitis. 
*Consider additional test: bronchoscopy with bronchoalveolar lavage, transbronchial
diagnosis of chronic hypersensitivity ... cHP = chronic hypersensitivity ... #hypersensitivity ... pulmonary #diagnosis #algorithm ... #HP #ILD
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Summary table of ... types of hypersensitivity ... Graft rejection #hypersensitivity ... types #allergy #table ... #classification
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
Differential Diagnosis Algorithm ... Pulmonary Langerhans cell ... as nodules Hypersensitivity ... - Immunologic (hypersensitivity ... #Diseases #ILD
Types of hypersensitivity reactions

Type I - lgE-Mediated, Within I Hour (Anaphylaxis)
Type II - IgG or IgM
Types of hypersensitivity ... Anemia) Type Ill ... Sickness) Type IV T-Cell-Mediated ... happypillsrx/ #hypersensitivity ... reactions #Types #Classification
Granulomatous Lung Disease - Differential Diagnosis Algorithm
OP: organising pneumonia; EGPA: eosinophilic granulomatosis with polyangiitis; NSG: necrotising
Granulomatous Lung ... Differential Diagnosis Algorithm ... disease; HP: hypersensitivity ... pulmonary Langerhans cell ... Differential #Diagnosis #Algorithm
Eosinophilia - Differential Diagnosis Algorithm
Idiopathic Eosinophilia
Primary Eosinophilia:
 • Primary hypereosinophilic syndrome
 • Eosinophilic Leukemia
 • MPN/MDS
Differential Diagnosis Algorithm ... GI, lung, skin), ... , Eczema, Drug Hypersensitivity ... IBD Stanford Internal ... Differential #Diagnosis #Algorithm
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Hypersensitivity ... pneumonitis: ill ... Hypersensitivity ... Langerhans cell ... Differential #Comparison #Table