12 results
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
- Local and systemic ... Complement activation ... lupus erythematosus ... Hypersensitivity #Types #Classification ... #Pathophysiology
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
Immunological Target: Allergen ... fever, Urticaria, Allergic ... complexes • Ex: Systemic ... Lupus Erythematosus ... #Types #Classification
Systemic Lupus Erythematosus (SLE): Pathogenesis

 • Genetic factors (Mutations in HLA- DR2/HLA-DR3 genes, complement genes, cytokine
Systemic Lupus Erythematosus ... HLA-DR3 genes, complement ... self-antigens, activating complement ... #Lupus #Erythematosus ... #SLE #Pathophysiology
EULAR/ACR Classification Criteria for Systemic Lupus Erythematosus
Clinical Domains:
 • Constitutional domain: Fever
 • Cutaneous domain: Non-scarring
EULAR/ACR Classification ... Criteria for Systemic ... anticoagulant • Complement ... #EULARACR #Classification ... Criteria #SLE #Systemic
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
they activate complement ... glomerulonephritis, Systemic ... lupus erythematosus ... reactions #types #allergy ... #table #classification
Type III Hypersensitivity: Pathogenesis and clinical findings
Definition: Small antigen-antibody complexes (produced from normal immune response to
the cause: • Systemic ... Lupus • Erythematosus ... HypersensitivityReaction #Allergy ... #Immunology #pathophysiology
Causes of Diffuse Lymphadenopathy - Differential Diagnosis Algorithm
Reactive:
 - Systemic Inflammatory
     •
Differential Diagnosis Algorithm ... Reactive: - Systemic ... Inflammatory • Systemic ... Lupus Erythematosus ... • Acne • Allergy
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
three primary pathophysiologic ... staining): • Low Complement ... Post-strep GN, Lupus ... Idiopathic • Normal Complement ... differential #diagnosis #algorithm
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... anti-Smith Ab, low complements ... Skin Disease Classification ... Neuropsychiatric systemic ... RNP antibodies, Complement
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
Differential Diagnosis Algorithm ... site in lymphatic system ... with lymphatic system ... Lymphoproliferative #Disorders #Classification ... #pathophysiology