35 results
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
to Kidney: Anti-GBM ... Pauci-immune mediated (Negative ... Glomerulonephritis #Vasculitis ... #differential #diagnosis ... #algorithm #rheumatology
Vasculitis - Break down based on vessel size 
Distribution of vessel involvement by large vessel vasculitis,
Vasculitis - Break ... by large vessel vasculitis ... medium vessel vasculitis ... Anti-GBM = anti–glomerular ... #Diagnosis #Rheumatology
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Vasculitis Involving ... - Differential Diagnosis ... IgM deposits • Nodular ... #dermatology #rheumatology ... #differential #diagnosis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential Diagnosis ... glomerulonephritis) • Anti-GBM ... Syndrome: - Ocular ... Differential Diagnosis ... #rheumatology #
Behcet's Syndrome - Diagnosis
Diagnostic Criteria for Behget's Syndrome (International Study Group for Behget's Disease):
 • Recurrent,
Behcet's Syndrome - Diagnosis ... Diagnostic Criteria ... Uveitis or retinal vasculitis ... uveitis, retinal vasculitis ... #criteria #rheumatology
ANCA-Associated Vasculitis
A group of necrotizing, small-vessel vasculitis without immune complex deposition. Complement levels are normal due
ANCA-Associated Vasculitis ... , small-vessel vasculitis ... rarely PR3 Anti-GBM ... PANCA #MPO #PR3 #Diagnosis ... #Rheumatology
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Differential Diagnosis ... polyangiitis) - ANCA-negative ... vasculitis, Behcet ... anti-ANCA ab, anti-GBM ... #differential #diagnosis
Point-of-care Ultrasound for Diagnosis of Abscess in Skin and Soft Tissue Infections

1. POCUS is more accurate
Ultrasound for Diagnosis ... POCUS is more accurate ... POCUS has a negative ... LikelihoodRatios #Accuracy #Diagnosis ... VisualAbstract #EBM
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
disease c-ANCA - Vasculitis ... granulomatosis p-ANCA - Vasculitis ... Celiac disease Anti-GBM ... Associations #diseases #diagnosis ... #table #rheumatology
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
- Differential Diagnosis ... workup, including BM ... Inflammatory Conditions: Rheumatologic ... , Vasculitides, ... #Differential #Diagnosis