31 results
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
Pain - Diagnostic ... reactive arthritis, gout ... Parallel, yellow = gout ... #Joint #Pain #MSK ... approach #workup #differential
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
Inflammatory Joint ... Pain - Differential ... Monoarticular • Gout ... ) • Gout • Psoriatic ... JointPain #MSK #Differential
Gout (Gouty Arthritis) - MSK Radiology
Imaging Findings:
 • Eccentric soft-tissue densities surrounding the third proximal interphalangeal
interphalangeal joint ... with joint-space ... prior signs or clinical ... Differential diagnosis ... #mri #clinical
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Approach to Joint ... Differential Diagnosis ... Crystal induced (Gout ... fever • Lyme • Gout ... #pain #Differential
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... Framework Bone/Joint ... Arthritis • Gout ... onset - Intense joint ... differential #diagnosis
Extra-articular and Other Conditions Associated with Joint Pain

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
Associated with Joint ... Pain Eyes ... Nodules • RA • Gout ... Tophi - Gout ... #pain #differential
SAPHO Syndrome Summary

What?
SAPHO syndrome is a rare chronic inflammatory disorder of bone, joint, and skin characterized
lesions + Rheumatic pain ... Clinical Features ... thickening • Osteitis: pain ... Diagnosis: • A clinical ... diagnosis • Rule out
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Knee Effusions - Differential ... Fever/Chills/Joint ... pain/Night sweats ... - Pseudo gout ... Effusions #causes #differential
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
medium-sized vessel) Identification ... vasculitis (5%): PAN ... lesions #diagnosis #clinical ... pathology #lesions #differential
Freiberg Infraction - MSK Radiology
Imaging Findings:
 • Sclerosis of the 2nd MT head with flattening of
Widening of the MTP joint ... • Pain worsens ... Unstable 2nd MTP joint ... Differential diagnosis ... #mri #clinical