29 results
Arthrocentesis - Joint Fluid Analysis

Effusion Characteristics (Color, Clarity, WCC, PMN, Crystals, Bacteria) by Disease Process: 
OA,
, Bacteria) by Disease ... OA, Traumatic arthritis ... crystals), TB arthritis ... , Septic arthritis ... Effusion #Analysis #Table
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
• Psoriatic arthritis ... Inflammatory Bowel Disease ... • Rheumatoid Arthritis ... Amy Chung, MD, MSc ... Joint #Disorders #msk
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
Early Rheumatic Disease ... • Rheumatoid Arthritis ... Asymmetric (Psoriatic Arthritis ... • Psoriatic Arthritis ... Inflammatory #JointPain #MSK
Connective tissue disease-associated interstitial lung diseases

LIP: lymphoid interstitial pneumonia. NSIP: nonspecific interstitial pneumonia. OP: organizing pneumonia.
Connective tissue disease-associated ... interstitial lung diseases ... RA: rheumatoid arthritis ... connective tissue disease ... Differential #Comparison #Table
Synovial Fluid Analysis:

Findings (COLOR	TRANSPARENCY	VISCOSITY	WBC COUNT (PER MM3)	PMN CELL COUNT (%)	GRAM STAIN	CULTURE	PCR TEST	CRYSTALS)

By Condition (Normal 
Noninflammatory 
Inflammatory:
crystalline disease ... noncrystalline disease ... Infectious: Lyme disease ... Effusion #Analysis #Table ... Septic #Infective #Arthritis
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
Symptoms of Joint Disease ... categories of joint disease ... • Inflammatory arthritis ... necrosis, and Paget disease ... #Joint #Pain #MSK
Highlighted Conditions With Arteritis or Periarteritis of the Coronaries
Takayasu's arteritis:
 - Onset < 40 yrs
 -
Conditions With Arteritis ... vasculitis Behcet's disease ... IgG4-related disease ... Erdheim-Chester disease ... Diagnosis #Cardiology #Table
Back Pain - Differential Diagnosis
Primary Back Pathology:
 • Musculoligamentous injury (a.k.a. lumbosacral strain)
 • Spondylosis (i.e.
. degenerative arthritis ... to metastatic disease ... Systemic Diseases ... , reactive arthritis ... #primarycare #table
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Systemic disease ... Effusions - Septic Arthritis ... : - Reactive arthritis ... SLE - Behcet Disease ... differential #diagnosis #msk
Infectious Joint Pain - Differential Diagnosis Algorithm 
Polyarticular Join Pain
 • Viral Myalgia
 • Viral Arthritis
Myalgia • Viral Arthritis ... Lesions) • Fifth Disease ... • Septic Arthritis ... tuberculosis • Lyme Disease ... Infectious #JointPain #MSK