126 results
Ill defined centrilobular nodules of ground glass density in a patient with hypersensitivity pneumonitis #Clinical #Radiology
a patient with hypersensitivity ... Radiology #CTChest #Hypersenstitivity ... #Pneumonitis #HypersenstitivityPneumonitis
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
Chronic hypersensitivity ... findings in chronic hypersensitivity ... patient with chronic hypersensitivity ... #CXR #CTChest #Hypersensitivity ... #Pneumonitis #HypersensitivityPneumonitis
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
Hypersensitivity ... Summary Type I Hypersensitivity ... Disease Type III Hypersensitivity ... sickness Type IV Hypersensitivity ... poison ivy) #Hypersensitivity
Sometimes the centrilobular opacities are more nodular in appearance as in this case. #Clinical #Radiology #CTChest
Radiology #CTChest #Hypersensitivity ... #Pneumonitis #HypersensitivityPneumonitis
Here another case of subacute hypersensitivity pneumonitis.
There is subtle opacity in the centre of the secondary
case of subacute hypersensitivity ... Radiology #CTChest #Hypersensitivity ... #Pneumonitis #HypersensitivityPneumonitis
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
Hypersensitivity ... lgE antibodies bind ... sclerosis #Hypersensitivity
Type I Hypersensitivity: Pathogenesis and clinical findings
Definition: Production of lgE Antibodies that bind to harmless allergens
Type I Hypersensitivity ... Antibodies that bind ... Allergen-antibody complexes bind
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Centrilobular: Hypersensitivity ... Pneumonia, Acute Hypersensitivity ... Ground Glass: Hypersensitivity ... Scleroderma, End-Stage Hypersensitivity
Types of hypersensitivity reactions

Type I - lgE-Mediated, Within I Hour (Anaphylaxis)
Type II - IgG or IgM
Types of hypersensitivity ... happypillsrx/ #hypersensitivity
Here another case of hypersensitivity pneumonitis.
There is a mosaic pattern.
Some secundary lobules demonstrate ground-glass opacity due
another case of hypersensitivity ... Radiology #CTChest #Hypersensitivity ... #Pneumonitis #HypersensitivityPneumonitis