12 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Malar rash • SLE ... Vesicopustule on erythematous ... Discoid lupus erythematosus ... #rashes #differential ... #diagnosis #rheumatology
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Sjögrens (15%) Skin ... 50%): Pleurisy / effusion ... #systemic #erythematosus ... signs #symptoms #diagnosis ... #rheumatology
Differential Diagnosis for Hemolytic Anemia
Intrinsic Causes:
 • Enzyme deficiencies ex. G6PD, pyruvate kinase 
 • Hemoglobinopathies
Differential Diagnosis ... for Hemolytic Anemia ... , spider/snake bites ... #Diagnosis #causes ... classification #hematology
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
Systemic Lupus Erythematosus ... Lymphadenopathies 7% - Hemolytic ... involvement 3% SLE-Related ... Lupusreference #SLE ... #rheumatology
EULAR/ACR Classification Criteria for Systemic Lupus Erythematosus
Clinical Domains:
 • Constitutional domain: Fever
 • Cutaneous domain: Non-scarring
Systemic Lupus Erythematosus ... or pericardial effusion ... Thrombocytopenia, Autoimmune hemolysis ... Classification #Criteria #SLE ... #diagnosis #rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
3rd Decade Skin ... permanent alopecia Differential ... Lungs: • Pleural effusions ... Seizures • Strokes Skin ... #Diagnosis #Rheumatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... Diagnosis Framework ... purple, hemorrhagic skin ... DIC/TTP/HUS - Hemolytic ... #Diagnosis #hematology
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Diagnosis Algorithm ... “Bamboo Spine” Fusion ... arthritis - with the skin ... Systemic Lupus Erythematosus ... (SLE), should have
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
on sun-damaged skin ... pruritus • Insect bites ... ; pruritis #dermatology ... #rash #differential ... #diagnosis #skin
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Diagnosis Framework ... : erythematous nodules ... systemic lupus erythematosus ... vasculitis, and SLE ... #diagnosis #rheumatology