7 results
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
, and systemic lupus ... erythematosus ... - Contact dermatitis ... #Types #Classification ... Pathophysiology #Allergy #Diagnosis
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
to complement activation ... Examples: Rheumatoid arthritis ... erythematosus Type ... Examples: Contact dermatitis ... allergy #table #classification
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
Classification of ... vasculitis - hypersensitivity ... - systemic lupus ... erythematosus ... #Rheumatology #
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
Skin Disease Classification ... Differential Diagnosis ... Kikuchi disease • Type-I ... Chronic B-cell activation ... #Diagnosis #Rheumatology
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
Types II and III ... (e.g. systemic lupus ... erythematosus ( ... #types #classification ... #rheumatology #
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
Macrophage Activation ... • Drug-induced hypersensitivity ... #Syndrome #Diagnosis ... #Management #Hematology ... #Rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
such as systemic lupus ... erythematosus, ... LFT • ESR • ANA ... #rheumatology # ... classification