23 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
• Rheumatic fever ... Discoid skin lesions ... • Discoid lupus ... #rashes #differential ... #diagnosis #rheumatology
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Features of Systemic Lupus ... (SLE) General: Fever ... Cranial nerve lesions ... Abdominal pain ... symptoms #diagnosis #rheumatology
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
: - Loss of pain ... Bilateral loss of pain ... multiradicular pain ... #differential # ... diagnosis #neurology
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
patients Skin lesions ... symptoms - Headache, fever ... Nausea, abdominal pain ... Urticaria #diagnosis #rheumatology ... #comparison #table
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
Rheumatica • Pain ... proximal joints, Fever ... Diffuse muscle pain ... Myopathies #myopathy #differential ... diagnosis #comparison #rheumatology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Platelet Disorders - Differential ... Diagnosis and Workup ... practices that could ... Diagnosis #Causes #Workup ... #hematology
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
- Differential ... continence • Pain ... reported at level ... loss: Sensory level ... #differential
Top 10 situations when to think about lupus
1) Inflammatory joint pain (especially in the wrists and
Inflammatory joint pain ... and fingers, or pain ... the face (many differential ... 9) Unexplained fever ... erythematosus #rheumatology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia - Differential ... Agglutination - Cold ... bartonella (oroya fever ... Diagnosis #Algorithm #workup ... #hematology #testing
Causes of Petechial Rash - Differential Diagnosis Algorithm

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