20 results
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
Immunological Target: Allergen ... fever, Urticaria, Allergic ... • Ex: Systemic Lupus ... Syndrome, Contact Dermatitis ... Classification #Diagnosis
Eczematous Skin Rash - Differential Diagnosis Algorithm
Eczematous - Pruritic/Scaly/Erythematous lesions. Usually poorly demarcated
 • Atopic Dermatitis
- Differential Diagnosis ... Algorithm Eczematous ... anyone - Allergic ... #Eczematous #SkinRash ... #Algorithm #causes
Vesiculobullous Skin Rash - Differential Diagnosis Algorithm
Vesicles Fragile/EasiIy Ruptured - Intraepidermal blisters, possibly crusts/erosions
 - Inflammatory
- Differential Diagnosis ... Algorithm Vesicles ... Bullous systemic lupus ... Vesiculobullous #SkinRash ... #Algorithm #causes
Causes of Diffuse Lymphadenopathy - Differential Diagnosis Algorithm
Reactive:
 - Systemic Inflammatory
     •
- Differential Diagnosis ... Algorithm Reactive ... • Systemic Lupus ... • Acne • Allergy ... Lymphadenopathy #LAD
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
Soluble antigen - Allergen-specific ... When the specific allergen ... , and systemic lupus ... - Contact dermatitis ... #Diagnosis #Reactions
A quick infographic on various pearls about atopic dermatitis, a disease with an increasing burden on
(AD) is a chronic ... medications #treatment #diagnosis ... #dermatology #skinrash ... Allergy. 2018;73 ... J Allergy Clin Immunol
Pustular Skin Rash - Differential Diagnosis Algorithm
Pruritic / Scaly / Erythematous lesions, usually poorly demarcated
Acneiform -
- Differential Diagnosis ... Algorithm Pruritic ... drinks • Perioral Dermatitis ... #Pustular #SkinRash ... #Algorithm #causes
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Mechanism of Action: Allergen-specific ... glomerulonephritis, Systemic lupus ... Examples: Contact dermatitis ... reactions #types #allergy ... classification #comparison
Causes of Recurrent Pregnancy Loss - Differential Diagnosis Algorithm
Environmental:
 • Toxin (organic solvents, mercury, lead)
 •
- Differential Diagnosis ... Algorithm Environmental ... solvents, mercury, lead ... Antiphospholipid syndrome • Lupus ... #Algorithm #Causes
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
Detectable HIV viral load ... Anti-retrovirals, Gemcitabine Lupus ... uncommon 5-15% of lupus ... #differential #diagnosis ... #comparison #rheumatology