13 results
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Differential ... pain/Night sweats ... Seronegative Reactive Syndrome ... - Acute rheumatic ... #diagnosis #msk
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
Inflammatory Joint Pain ... - Differential ... Sicca) Syndrome ... Acute Onset ... Inflammatory #JointPain #MSK
Vascular Joint Pain - Differential Diagnosis Algorithm 
 - Constant Pain (Ischemia)
 - Acute Onset
 -
- Differential ... Diagnosis Algorithm ... (Ischemia) - Acute ... Marfan's Syndrome ... Vascular #JointPain #MSK
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... Immobilization) • Acute ... /swelling - Fever ... #differential # ... lower #extremity #msk
Mesenteric Ischemia - Differential Diagnostic Schema
Chronic: ASCVD, Venous, Vasculitides 5% (PAN, [E]GPA, IgA, MPA)
Acute
 - Venous
Vasculitides 5% (PAN ... GPA, IgA, MPA) Acute ... Antiphospholipid syndrome ... hypovolemia), Meds/Treatments ... #Diagnosis #algorithm
Low Back Pain (Lumbago) - Common Differential Diagnosis and Patterns

Mechanical Low Back Pain:
Aching pain in the
) - Common Differential ... Usually acute (< ... below the knee, ... ; the level varies ... Patterns #Features #Comparison
Rare Causes of Abdominal Pain
 • Hereditary Angioneurotic Edema - Recurrent visceral that may by swelling
Mediterranean Fever ... by serositis • Acute ... arcuate ligament syndrome ... patient is in the knee-to-chest ... #differential #
Iliotibial Band Friction Syndrome - MSK Radiology
Imaging Findings:
 • The iliotibial band (ITB) is thickened with
Band Friction Syndrome ... - MSK Radiology ... pain with point ... • Treatment: Conservative ... Differential diagnosis
Differentiation Syndrome in APML
Epidemiology:
 • Incidence: common in APL (2-48% depending on the study)
 • Triggers:
Differentiation Syndrome ... Triggers: ATRA treatment ... : • Common: fever ... effusions, weight gain ... initiation • Differential
Gout - Diagnosis and Management Summary

3 Conditions for Gout to Manifest:
1. Hyperuricemia
2. Monosodium urate deposition in
sex • Metabolic syndrome ... forefoot, ankles, knees ... swelling, significant pain ... Dual-energy CT → MSU ... gout treatment;