24 results
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Differential Diagnosis ... - Systemic disease ... Infectious Knee ... arthritis - SLE ... #differential #diagnosis
Systemic Lupus Erythematosus - Summary
Antinuclear (ANA) - 95% - Initial screening test
Anti-dsDNA - 50%
 • Associated
Systemic Lupus Erythematosus ... Hydroxychloroquine *Short ... #Summary #diagnosis ... #rheumatology # ... management
CNS Manifestations of Systemic Lupus Erythematosus (SLE)

Clinical Manifestations: Demyelinating Syndrome, Headache, Movement disorders, Seizure disorders, Aseptic
Manifestations of Systemic ... Erythematosus (SLE ... Disease, PRES Pathophysiology ... CNS #neurology #rheumatology ... #management #treatment
Extra-articular and Other Conditions Associated with Joint Pain

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
Bacterial or viral infection ... Nodules • RA • Gout ... Tophi - Gout ... #differential #diagnosis ... #rheumatology
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Lymphohistiocytosis (HLH) Pathophysiology ... Auto-amplification loop Diagnosis ... Autoimmune diseases: SLE ... #management #treatment ... #summary #rheumatology
Adult-Onset Still's Disease (AOSD)
Rare inflammatory disorder of unknown etiology, difficult to diagnose because of heterogenous presentation.
Must rule out other ... susceptibility, infectious ... episode (30%) Systemic ... Disease #AOSD #rheumatology ... #diagnosis #management
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
erythematosus [SLE ... ], AOSD) • Infection ... Activation #Syndrome #Diagnosis ... #Management #Hematology ... #Rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... Differential Diagnosis ... fibromyalgia) • Infections ... pain • Swan neck/Ulnar ... #Rheumatology
CPPD vs Gout

== CPPD == 

Think About CPPD When:
 • Self-limited synovitis after surgery/trauma (> 65
disease states Pathophysiology ... concomitant infection ... forefoot, ankles, knees ... concomitant infection ... #Comparison #rheumatology
Top 10 situations when to think about lupus
1) Inflammatory joint pain (especially in the wrists and
many differential diagnoses ... Unexplained fever, when infection ... has been ruled out ... #sle #clues #system ... erythematosus #rheumatology