9 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 ... Fever/Chills/Joint pain ... Infection - Systemic ... Gout - Pseudo ... differential #diagnosis #msk
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
50%): Pleurisy / effusion ... of hip (rare), Arthritis ... lesions Abdominal pain ... #erythematosus ... #signs #symptoms
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Crystalline - Gout ... “Bamboo Spine” Fusion ... Lupus Erythematosus ... should have other symptoms ... Joint #Disorders #msk
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
noninflammatory Signs ... constitutional symptoms ... fever • Lyme • Gout ... #Diagnosis #MSK ... #rheumatology #
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... Non-autoimmune rheumatologic ... Lungs: • Pleural effusions ... : • Joint pain ... Induced Lupus: • Symptoms
Rheumatoid Arthritis Summary
Overview: chronic, inflammatory symmetric polyarthritis involving small joints of hands/feet, knees, shoulders
Signs & Symptoms:
of hands/feet, knees ... , shoulders Signs ... & Symptoms: • ... inflammatory) • joint pain ... nodules, joint effusions
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
lupus erythematosus ... Symptoms (Sx) in ... purpura: strong sign ... Vessels: Supply gut ... differential #diagnosis #rheumatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Symptoms (SX) in ... purpura: Strong sign ... ischemia • Skin: Erythematous ... tract: Abdominal pain ... Differential #Diagnosis #Rheumatology
Gout - Diagnosis and Management Summary

3 Conditions for Gout to Manifest:
1. Hyperuricemia
2. Monosodium urate deposition in
forefoot, ankles, knees ... swelling, significant pain ... frequent attacks • Arthritis ... double contour sign ... management #treatment #rheumatology