12 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Dermatomyositis Erythema chronicum ... Vesicopustule on erythematous ... Antiphospholipid-antibody syndrome ... Discoid lupus erythematosus ... differential #diagnosis #rheumatology
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 ... with Lupus: • Chronic ... #Diagnosis #Rheumatology
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Sjögrens (15%) Skin ... Demyelinating syndromes ... SLE #systemic #erythematosus ... #signs #symptoms ... #diagnosis #rheumatology
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
Autoimmune diseases ... Atopic diseases, Chronic ... spontaneous urticaria, Chronic ... Urticaria #diagnosis #rheumatology ... #comparison #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
skin condition ... presenting with erythematous ... skin condition, ... Erythemas #comparison #table ... differential #diagnosis #dermatology
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
response to local skin ... test (this is a skin ... Recurrent and chronic ... diagnosis #management #signs ... #symptoms #rheumatology
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Capitis - Skin ... Discoid lupus erythematosus ... , Loose anagen syndrome ... Examination: • Signs ... weight loss • Chronic
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Eosinophilia, asthma, chronic ... : erythematous nodules ... systemic lupus erythematosus ... purpura: strong sign ... differential #diagnosis #rheumatology
Chronic Lymphocytic Leukemia - Summary

Cancer affecting lymphocytes/Mature B cell neoplasm
 • Lymphocytes accumulate in large numbers
Chronic Lymphocytic ... Physical Exam/Signs ... Hepatomegaly • Skin ... • Richter’s Syndrome ... workup #oncology #hematology