16 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Rash • Human ... B19 infection Malar ... lesions • Discoid lupus ... differential #diagnosis ... #rheumatology
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
(SLE) - Diagnosis ... Manifestations: Malar ... rash, Photosensitivity ... • Immunologic Workup ... Management #Summary #rheumatology
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
& NPSLE rare, Malar ... • Immunologic Workup ... sle #comparison #table ... #rheumatology # ... diagnosis #management
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
Arthritis 69% - Malar ... rash 40% - Fever ... (aPL) 30-45% Differential ... Diagnosis and Lupus ... #rheumatology
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
muscle weakness, rash ... Rheumatica • Pain ... Myopathies #myopathy #differential ... #diagnosis #comparison ... #rheumatology
Features That Differentiate Acute Pericarditis from Myocardial Ischemia or Infarction and Pulmonary Embolism

In contrast to the
associated with rheumatologic ... presentation of systemic lupus ... trapezius ridges or shoulders ... Presentation #comparison #Table ... #Diagnosis
Top 10 situations when to think about lupus
1) Inflammatory joint pain (especially in the wrists and
Inflammatory joint pain ... and fingers, or pain ... everywhere) 2) A rash ... the face (many differential ... erythematosus #rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
permanent alopecia Differential ... Non-autoimmune rheumatologic ... Arthritis: • Joint pain ... Photosensitivity • Malar ... #Rheumatology
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
assay (IFA) is the main ... healthy adults, and should ... , Drug-induced Lupus ... ANA #patterns #rheumatology ... #diagnosis #differential
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
- Differential ... Diagnosis Algorithm ... lesions • Severe pain ... Autoimmune Vasculitis (lupus ... deficiency Work