7 results
Seronegative Inflammatory Arthritis - Differential Diagnosis
 • Seronegative Rheumatoid Arthritis 
 • Infectious Arthritis: Viral, Bacterial,
Disease: Systemic Lupus ... Erythematous, Systemic ... Vasculitis, Systemic ... Undifferentiated UCSD ... #Diagnosis #rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
, inflammatory arthritis ... , rheumatoid arthritis ... lung syndrome Arthritis ... PNS and CNS • ... Symptoms limited to: Arthritis
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
juvenile idiopathic arthritis ... erythematosus ... nervous system (CNS ... juvenile idiopathic arthritis ... erythematosus [
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
and often causes arthritis ... Glomerulonephritis, arthritis ... mucositis - Rash, arthritis ... systemic lupus ... differential #diagnosis #rheumatology
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
antibodies bind to mast ... glomerulonephritis, rheumatoid arthritis ... , and systemic lupus ... erythematosus ... - Contact dermatitis
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Allergen-specific lgE causes mast-cell ... Examples: Rheumatoid arthritis ... erythematosus Type ... T-cells recruit macrophages ... Examples: Contact dermatitis
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
ischemia • Skin: Erythematous ... mucositis • Rash, arthritis ... and often causes arthritis ... Glomerulonephritis, arthritis ... chorioretinitis, CNS