16 results
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Differential Diagnosis ... - SLE - Behcet ... - Giant cell tumor ... #differential #diagnosis ... #msk #physicalexam
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 ... PVNS/Giant Cell Tumor ... #Gouty #Arthritis
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 ... Radiology #XRay #msk
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
in Behcet syndrome ... Positive pathergy test ... is a skin prick test ... interferon alfa, or tumor ... #management #signs
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 ... #Differential #Diagnosis ... Radiology #XRay #MSK
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Differential Diagnosis ... axial (spine, shoulders ... noninflammatory Signs ... Crystal induced (Gout ... #MSK #rheumatology
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
- Differential Diagnosis ... • Behcet disease ... • Behcet's syndrome ... Hyper-IgD syndrome • Tumor ... Brucellosis Faget's Sign
Meralgia paresthetica: Pathogenesis and Clinical Findings
Compression/injury of Lateral Femoral Cutaneous Nerve (LFCN) -> Meralgia paresthetica
 •
be made, rule out ... intervertebral disc disease ... Straight Leg Raise Test ... MeralgiaParesthetica #MSK ... #signs #symptoms
Gout - Diagnosis and Management Summary

3 Conditions for Gout to Manifest:
1. Hyperuricemia
2. Monosodium urate deposition in
Gout - Diagnosis ... forefoot, ankles, knees ... frequent attacks • Arthritis ... double contour sign ... +Radiographic signs
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
with: - Thymic tumors ... syndrome, rheumatoid arthritis ... /Edrophonium test ... - Cogan sign ... - Peek sign 2.