17 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Associated with Joint Pain ... infection • Lyme disease ... Antiphospholipid-antibody ... #skin #rashes #differential ... #diagnosis #rheumatology
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
within one hour or longer ... Nausea, abdominal pain ... Cold #Urticaria #diagnosis ... #rheumatology # ... comparison #table
Hodgkin's Lymphoma vs Non-Hodgkin's Lymphoma - Comparison

Hodgkin's Lymphoma:
 • Epidemiology: young adults 20-30, older 50-70
 •
Non-Hodgkin's Lymphoma - Comparison ... Alcohol-induced pain ... : Pain in involved ... #differential # ... hematology
Rhombencephalitis
BACTERIAL
- Listeria (biphasic illness with bulbar dysfunction occurring later)
- Mycobacterium tuberculosis
- Pneumococcus
- Brucella
- Borrelia (Lyme Disease)
-
myasthenia, Miller-Fisher ... anti-ganglioside antibody ... Rhombencephalitis #Differential ... #Diagnosis #Causes ... #Neurology
Extra-articular and Other Conditions Associated with Joint Pain

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
Associated with Joint Pain ... syndrome - SLE Neurologic ... Antiphospholipid-antibody ... #differential # ... diagnosis #rheumatology
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
or Anti-NucIear Antibody ... assay (IFA) is the main ... ANA ≠ Autoimmune Disease ... ANA #patterns #rheumatology ... #diagnosis #differential
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
Symptoms of Joint Disease ... -60 minutes or longer ... #MSK #rheumatology ... approach #workup #differential ... #diagnosis #arthritis
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... , and low back pain ... (to support a diagnosis ... laboratory #workup #diagnosis ... #testing #Rheumatology
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
nose, ears, or fingers ... younger pts) Differential ... chills, flank pain ... hemolytic #anemia #hematology ... #diagnosis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Vasculitides - Differential ... Diagnosis Framework ... episcleritis as well as inner ... Differential Diagnosis ... #diagnosis #rheumatology