13 results
Typical Clinical Presentations of Septic Arthritis by Pathogen and Joint Involvement

#Diagnosis #Septic #Arthritis #Differential #History #Presentation
Presentations of Septic ... Arthritis by Pathogen ... and Joint Involvement ... #Arthritis #Differential ... Pathogen #Bacteria #Table
Arthrocentesis - Joint Fluid Analysis

Effusion Characteristics (Color, Clarity, WCC, PMN, Crystals, Bacteria) by Disease Process: 
OA,
Arthrocentesis - Joint ... , Septic arthritis ... #Diagnosis #Differential ... Arthrocentesis #Joint ... Effusion #Analysis #Table
Approach to Joint Pain - Diagnostic Framework

1) Chronicity
2) Inflammatory vs Non-Inflammatory
3) Number of Joints Involved

1) Chronicity:
): • Septic joint ... #rheumatology # ... approach #workup ... #differential # ... diagnosis #arthritis
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Associated with Joint ... • Gonococcal arthritis ... Sarcoidosis #dermatology ... #joint #pain #skin ... #rashes #differential
Arthrocentesis of synovial fluid - Interpretation
 - Normal
 - Noninflammatory	
 - Inflammatory	
 - Septic

Viscosity of synovial
arthritis; however ... 50,000 #Diagnosis #Differential ... Arthrocentesis #Joint ... Effusion #Analysis #Table ... #Infective #Arthritis
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
• Inflammatory arthritis ... #Pain #MSK #rheumatology ... #approach #workup ... #differential # ... diagnosis #arthritis
Causes of Bone/Joint Pain in Sickle Cell Disease
Vaso-occlusive pain:
 • Mechanism: ischemic pain
 • Can present
Causes of Bone/Joint ... Osteomyelitis / Septic ... Arthritis: • ... • Differentiate ... diagnosis #causes #hematology
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Knee Effusions - Differential ... Fever/Chills/Joint ... Knee Effusions - Septic ... Effusions: - Hematologic ... Osteochondroma Hematologic
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia - Differential ... disease (diverse genotypes ... Hemolytic #Anemia #Differential ... Diagnosis #Algorithm #workup ... #hematology #testing
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
interphalangeal joints ... • Arthralgia/arthritis ... Phenotype 2 ... muscle weakness Phenotype ... #dermatology #diagnosis