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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 ... , and SLE) • Urinalysis
Systemic Lupus Erythematosus: Gastrointestinal Manifestations
 - Thrombosis of vessels in the pancreas, Vasculitis -> Acute Pancreatitis
Systemic Lupus Erythematosus ... the pancreas, Vasculitis ... distension #Systemic ... Erythematosus #SLE ... pathophysiology #signs
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Clinical Features of Systemic ... Lupus (SLE) General ... Butterfly rash, Vasculitis ... Thrombocytopenia #Lupus #SLE ... #signs #symptoms
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Diagnosis: • Systemic ... diseases, such as SLE ... purpura: Strong sign ... Elevated AST ALT • Hypocomplementemia ... ) • Hypocomplementemic
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
activate the immune system ... diseases: - 10% SLE ... • Low serum C4 complement ... disorder (e.g. systemic ... erythematosus (SLE
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 ... ANCA-associated vasculitis ... RNP antibodies, Complement ... #Systemic #Lupus
Causes of ileitis beyond Crohn’s disease and infections include systemic disorders -spondyloarthropathies, vasculitides, ischemia, and amyloidosis
infections include systemic ... spondyloarthropathies, vasculitides ... See below for table ... helpful paper complements
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
Behçet's Syndrome Systemic ... , small-vessel vasculitis ... Oral aphthae : SLE ... • Arthritis: SLE ... diagnosis #management #signs
Sjogren's Syndrome Overview

Epidemiology:
• F > M: 9:1
• 5-6th Decades (can be any age)

Autoimmune exocrinopathy multisystemic disease
overlaps with RA, SLE ... Cytopenia: 2% • Hypocomplementemia ... Central nervous system ... ) • Cutaneous vasculitis ... Vasculitis: •
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
• Symptoms and signs ... Behcet disease - SLE ... , Scleroderma, Systemic ... differential #algorithm