13 results
Systemic Sclerosis (Scleroderma)
Multi-system autoimmune disease characterized by vasculopathy and progressive fibrosis of skin and internal organs
3
Multi-system autoimmune ... LcSSc) - distal skin ... thickening Signs ... Scleroderma #SSc #rheumatology ... #diagnosis #signs
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
3rd Decade Skin ... disease • Non-autoimmune ... rheumatologic diseases ... deficiencies • Autoimmune ... #Diagnosis #Rheumatology
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Sjögrens (15%) Skin ... SLE #systemic #erythematosus ... #signs #symptoms ... #diagnosis #rheumatology
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
with edema • Erythematous ... chest (in a V-sign ... ulcerations • Skin ... violaceous macules and erythematous ... Dermatomyositis #rheumatology
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
Autoimmune diseases ... trigger - Direct skin ... 50% of patients Skin ... Urticaria #diagnosis #rheumatology ... #comparison #table
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
associated with signs ... on sun-damaged skin ... macerated areas with satellite ... Acrochordons (skin ... ; pruritis #dermatology
Inflammatory Myopathies
Dermatomyositis
 • Onset: Subacute
 • Pattern: Proximal
 • CK: Up to 50X ULN
 • Autoantibodies:
heliotrope, shawl sign ... exclusion Necrotizing Autoimmune ... diagnosis #comparison #rheumatology ... #table
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
- Purpura - Skin ... infection • Autoimmune ... reticularis & skin ... systemic lupus erythematosus ... classification #rheumatology
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
centrifugum • A chronic skin ... gyratum repens • A skin ... presenting with erythematous ... Erythemas #comparison #table ... differential #diagnosis #dermatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Purpura, ischemic skin ... : erythematous nodules ... systemic lupus erythematosus ... purpura: strong sign ... differential #diagnosis #rheumatology