6 results
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
lgE antibodies ... - Local and systemic ... systemic lupus ... erythematosus Type ... #Classification
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Vasculitis and Vasculitides ... often causes arthritis ... lupus erythematosus ... #rheumatology # ... classification
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
lgE causes mast-cell ... lupus erythematosus ... #allergy #table ... #classification ... #comparison
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
DDX: • ANCA (Antineutrophil ... • Vasculitis ... lupus erythematosus ... #rheumatology # ... vasculitis
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... vasculitis, rheumatoid ... • Mesenteric vasculitis ... inflammation Cutaneous Vasculitis ... #Diagnosis #Rheumatology
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
Erythema ab igne • A dermatosis ... form of delayed-type ... of necrotizing vasculitis ... presenting with erythematous ... #table #differential