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Seronegative Inflammatory Arthritis - Differential Diagnosis
 • Seronegative Rheumatoid Arthritis 
 • Infectious Arthritis: Viral, Bacterial,
Rheumatic Disease: Systemic ... Lupus Erythematous ... , Systemic Vasculitis ... , Systemic Sclerosis ... #Diagnosis #rheumatology
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 ... ) Blood (75%): Anemia ... #Lupus #SLE #systemic ... symptoms #diagnosis #rheumatology
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
- Takayasu arteritis ... central nervous system ... disease - systemic ... lupus erythematosus ... Vessels #Diagnosis #Rheumatology
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
Non-Infectious Aortitis: • Vasculitides ... ANCA associated vasculitis ... (RA), Systemic ... lupus erythematosus ... Differential #Diagnosis #rheumatology
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
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Systemic Lupus Erythematosus ... Manifestations: - Arthritis ... Neurological 12% - Thrombocytopenia ... - Hemolytic anemia ... #differential #rheumatology
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
lupus erythematosus ... , Drug-induced Lupus ... Juvenile Idiopathic Arthritis ... lupus erythematosus ... ANA #patterns #rheumatology
SLICC SLE Diagnostic Criteria - Systemic Lupus Erythematosus
Clinical and Immunologic Criteria

CLINICAL CRITERIA
 - ACUTE CUTANEOUS LUPUS
Diagnostic Criteria - Systemic ... NEUROLOGIC - HEMOLYTIC ANEMIA ... (<1000/MM3) - THROMBOCYTOPENIA ... absence of hemolytic anemia ... #Diagnosis #Rheumatology
EULAR/ACR Classification Criteria for Systemic Lupus Erythematosus
Clinical Domains:
 • Constitutional domain: Fever
 • Cutaneous domain: Non-scarring
Classification Criteria for Systemic ... • Arthritis domain ... domain: Leukopenia, Thrombocytopenia ... Criteria #SLE #Systemic ... #diagnosis #rheumatology
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
lupus erythematosus ... lupus erythematosus ... with leukopenia, anemia ... , and thrombocytopenia ... #Rheumatology
I’M DAMN SHARP - Lupus Diagnosis Mnemonic
I  	 Immunoglobulins (Anti-dsDNA, Anti-Sm, Anti-phospholipid)
M 	 Malar Rash
D
M DAMN SHARP - Lupus ... cytopenias) A Arthritis ... IMDAMNSHARP #sle #systemic ... #lupus #erythematosus ... #rheumatology #