12 results
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Effusions - Septic ... (1%) - Watch out ... Effusions: - Gout ... - Pseudo gout ... #diagnosis #msk
Gout (Gouty Arthritis) - MSK Radiology
Imaging Findings:
 • Eccentric soft-tissue densities surrounding the third proximal interphalangeal
Gout (Gouty Arthritis ... mass and NO prior signs ... • This case should ... • Gout can present ... Differential diagnosis
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Joint Disorders - Differential ... Monoarthritis • Septic ... Crystalline - Gout ... Erythematosus (SLE), should ... Joint #Disorders #msk
Diagram of different types of bone tumors that can occur around the knee on XRay -
occur around the knee ... Myeloma - punched out ... blade of grass sign ... 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 ... Myeloma - punched out ... blade of grass sign ... Lesions #Bony #Differential ... Radiology #XRay #MSK
Meralgia paresthetica: Pathogenesis and Clinical Findings
Compression/injury of Lateral Femoral Cutaneous Nerve (LFCN) -> Meralgia paresthetica
 •
be made, rule out ... MeralgiaParesthetica #MSK ... #pathophysiology ... #differential # ... diagnosis #signs
Gout - Diagnosis and Management Summary

3 Conditions for Gout to Manifest:
1. Hyperuricemia
2. Monosodium urate deposition in
forefoot, ankles, knees ... not possible • Ultrasound ... double contour sign ... Dual-energy CT → MSU ... +Radiographic signs
Baker's Cyst on POCUS 
63yo w p/w pain and swelling behind knee.  Probe on knee
dx) that pops out ... Sign of intraarticular ... Global Ultrasound ... #Cyst #POCUS #ultrasound ... #msk
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
noninflammatory Signs ... Very hard to get out ... Crystal induced (Gout ... fever • Lyme • Gout ... #Diagnosis #MSK
TISSUE APPEARANCES ON 
MUSCULOSKELETAL ULTRASOUND 

Bone:
 
Bone is represented as a very bright structure and appears
to fibroadipose septa ... honeycomb’ or ‘pepper pot ... interrogation as it should ... infrapatellar bursa of the knee ... MUSCULOSKELETAL #MSK