13 results
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Differential ... Effusions: - Hematologic ... Osteochondroma Hematologic ... Effusions #causes #differential ... #diagnosis #msk
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
Symptoms of Joint Disease ... #Joint #Pain #MSK ... #rheumatology # ... approach #workup ... #differential #
Diagram of different types of bone tumors that can occur around the knee on XRay -
occur around the knee ... phase • Paget disease ... lesion • Geode (AKA ... Diagnosis #Bony #Differential ... Radiology #XRay #msk
Diagram of different types of bone tumors that can occur around the knee on XRay
Age <
occur around the knee ... lesion • Geode (AKA ... Lesions #Bony #Differential ... Radiology #XRay #MSK ... #pediatrics
Gout (Gouty Arthritis) - MSK Radiology
Imaging Findings:
 • Eccentric soft-tissue densities surrounding the third proximal interphalangeal
Gout (Gouty Arthritis ... ) - MSK Radiology ... Differential diagnosis ... diffuse chondral disease ... #rheumatology
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Differential Diagnosis ... Rheumatologic Disease ... Joint #pain #Differential ... #Diagnosis #MSK ... #rheumatology #
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
), RA, crystal disease ... #Joint #Pain #MSK ... #rheumatology # ... approach #workup ... #differential #
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
Deformity / Limp - Differential ... Knee Joint • ... Osgood-Schlatter Disease ... Deformity #Limp #MSK ... #Differential #
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... Studies in Rheumatic Diseases ... double-stranded DNA ... #Rheumatic #Disease ... #laboratory #workup
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
, inflammatory arthritis ... permanent alopecia Differential ... Malignancy (e.g. hematologic ... vein thrombosis Hematologic ... and C4) • ds-DNA