16 results
Pathophysiology of Hypocomplementemic Urticarial Vasculitis

C1q/anti-C1q antibiody ->
Immune Complex Formation - Complement Pathway Activation (C3a and C5a)
Pathophysiology ... of Hypocomplementemic ... Complex Formation - Complement ... TerrierBen #Hypocomplementemic ... Vasculitis #HUV #Pathophysiology
Systemic Lupus Erythematosus (SLE): Pathogenesis

 • Genetic factors (Mutations in HLA- DR2/HLA-DR3 genes, complement genes, cytokine
Erythematosus (SLE ... HLA-DR3 genes, complement ... self-antigens, activating complement ... Erythematosus #SLE ... #Pathophysiology
Systemic Lupus Erythematosus (SLE): Musculoskeletal Manifestations

 • Immune Complex Deposition
    - Arthralgia, Arthritis
Erythematosus (SLE ... Erythematosus #SLE ... Complications #pathophysiology ... #signs #symptoms
Systemic Lupus Erythematosus: Gastrointestinal Manifestations
 - Thrombosis of vessels in the pancreas, Vasculitis -> Acute Pancreatitis
Erythematosus #SLE ... Complications #pathophysiology ... #signs #symptoms
Humoral Immunity - Pathogenesis and Clinical Findings
Antigens (Ag) are produced from pathogens (bacteria, viruses, fungi, parasites)
activation • Complement ... tagged with C3 complement ... classical pathway (see ... Complement Activation ... Humoral #Immunity #pathophysiology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... purpura: strong sign ... against MPO • Complement ... vasculitis, and SLE
Primary Sjogren’s Syndrome: Pathogenesis and Clinical Findings
• Primary Sjögren's is a solitary process whereas secondary Sjögren's
erythematosus (SLE ... ) Signs / Symptoms ... Sjogrens #Syndrome #Pathophysiology ... #Diagnosis #Signs
Upper Urinary Tract infection (UUTI): Pathogenesis and Clinical Findings

Predisposing Factors:
 - Immunocompromised, Diabetes,
 - Elderly, Female
bacteriuria or cystitis (see ... UrinaryTractInfection #UUTI #Pathophysiology ... #Signs #Symptoms
Lupus (SLE): Mucocutaneous Manifestations

 • Langerhan cells and keratinocytes release cytokines -> localized inflammatory response ->
Lupus (SLE): Mucocutaneous ... Phenomenon #Lupus #SLE ... Manifestations #pathophysiology ... #diagnosis #signs
IgA Vasculitis – Henoch Scholein Purpura: Pathogenesis and Clinical Findings

 - Infectious Agents - 50% have
Activation of complement ... HenochScholeinPurpura #Pathophysiology ... #Diagnosis #Signs