9 results
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Differential Diagnosis ... Seronegative Reactive Syndrome ... Intra-articulation fracture - Patellar ... #differential #diagnosis ... #msk #physicalexam
Transient Patellar Dislocation - MSK Radiology
Imaging Findings:
 • Hyperintense marrow edema of the anterolateral femoral condyle
Dislocation - MSK ... tendon/maximum ... out of the femoral ... injury of the knee ... #msk
Gout (Gouty Arthritis) - MSK Radiology
Imaging Findings:
 • Eccentric soft-tissue densities surrounding the third proximal interphalangeal
) - MSK Radiology ... mass and NO prior signs ... - **MSK rads ... Giant Cell Tumor Tendon ... #msk #rheumatology
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
- Differential Diagnosis ... Legg-Calve-Perthes Disease Knee ... Patellofemoral Syndrome ... (e.g., Tendon Rupture ... Deformity #Limp #MSK
Gout - Diagnosis and Management Summary

3 Conditions for Gout to Manifest:
1. Hyperuricemia
2. Monosodium urate deposition in
Gout - Diagnosis ... sex • Metabolic syndrome ... forefoot, ankles, knees ... elbows, Achilles tendon ... not possible • Ultrasound
Trigger Finger - Stenosing flexor tendon tenosynovitis

There is a change in the slip between the tendon
The diagnosis is ... Ultrasound can show ... tenosynovitis #msk ... #clinical #physicalexam ... #orthopedics #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential Diagnosis ... purpura: strong sign ... diminished, or tender ... Vessels: Supply gut ... #rheumatology #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
- Differential Diagnosis ... purpura: Strong sign ... diminished, or tender ... purpura, joint & gut ... #Rheumatology
Nail Pathologies - Findings in or Near Nails

Paronychia 

A superficial infection of the proximal and lateral
, swollen, and tender ... seen in Reiter's syndrome ... Abnormal #Pathology #Diagnosis ... #Clinical #Signs ... #PhysicalExam #