7 results
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Causes of Knee Effusions ... - Differential Diagnosis ... fracture - Patellar dislocation ... Osteosarcoma - Eosinophils ... #physicalexam
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
Antineutrophil cytoplasmic antibodies ... ANCA-Associated Vasculitis ... ANCA+ 60% • Eosinophilic ... Renal-limited vasculitis ... #diagnosis #rheumatology
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
three primary pathophysiologic ... causes differentiated ... Purpura Anti-GBM antibodies ... involvement: Anti-GBM Disease ... #differential #diagnosis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential Diagnosis ... • EGPA: - Eosinophilia ... tract, and often causes ... C-ANCA) pattern: antibodies ... #rheumatology #
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
Autoimmune ANCA vasculitis ... life-threatening diseases ... EGPA) • Auto-antibodies ... LVEF, pericardial effusion ... Goodpasture's cause
Venous Thrombosis vs Arterial Thrombosis - Differential Diagnosis Framework

VENOUS THROMBOSIS

 • Acquired Risk Factors:
	- >48 hours
Myeloproliferative disease ... Antiphospholipid antibodies ... coagulation and other causes ... 19 - PNH - Vasculitis ... #hematology #differential
Sjogren's Syndrome Overview

Epidemiology:
• F > M: 9:1
• 5-6th Decades (can be any age)

Autoimmune exocrinopathy multisystemic disease
Hypocomplementemia • Can cause ... thickening or effusion ... ) • Cutaneous vasculitis ... Nephrogenic DI Hematologic ... : 2% Systemic Vasculitis