13 results
Seronegative Inflammatory Arthritis - Differential Diagnosis
 • Seronegative Rheumatoid Arthritis 
 • Infectious Arthritis: Viral, Bacterial,
Disease: Systemic Lupus ... Erythematous, Systemic ... Vasculitis, Systemic ... Undifferentiated UCSD ... #Diagnosis #rheumatology
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
• Gonococcal arthritis ... Antiphospholipid-antibody syndrome ... blennorrhagicum • Reactive arthritis ... • Psoriatic arthritis ... lesions • Discoid lupus
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
, Cogan's Syndrome ... RD), Rheumatoid Arthritis ... (RA), Systemic lupus ... erythematosus ( ... Differential #Diagnosis #rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
, inflammatory arthritis ... , rheumatoid arthritis ... Arthritis: • ... Joint pain • Swan ... Symptoms limited to: Arthritis
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Butterfly rash, Vasculitis ... of hip (rare), Arthritis ... Demyelinating syndromes ... lesions Abdominal pain ... SLE #systemic #erythematosus
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
and often causes arthritis ... Glomerulonephritis, arthritis ... mucositis - Rash, arthritis ... erythematosus, ... differential #diagnosis #rheumatology
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
assay (IFA) is the main ... Juvenile Idiopathic Arthritis ... scleroderma), Rheumatoid Arthritis ... Juvenile Idiopathic Arthritis ... ANA #patterns #rheumatology
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
ANCA-positive vasculitis ... Complex: Systemic lupus ... erythematosus, ... Rheumatoid arthritis ... differential #diagnosis #nephrology
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
SLE, Reactive arthritis ... Ocular melanoma • Arthritis ... SLE, Reactive Arthritis ... Recurrent and chronic arthritis-Azathioprine ... Nonsurgical abdominal pain
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
arthralgia, and arthritis ... (e.g. systemic lupus ... erythematosus ( ... SLE), rheumatoid arthritis ... classification #rheumatology