19 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
Arthrocentesis - Joint Fluid Analysis

Effusion Characteristics (Color, Clarity, WCC, PMN, Crystals, Bacteria) by Disease Process: 
OA,
Arthrocentesis - Joint ... birefringent crystals), Gout ... #Diagnosis #Differential ... Arthrocentesis #Joint ... Infective #Arthritis #Interpretation
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
semiology of Cutaneous Vasculitis ... medium-sized vessel) Identification ... • Drug-induced vasculitis ... (5%): PAN > GPA ... pathology #lesions #differential
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
Inflammatory Joint ... Pain - Differential ... Monoarticular • Gout ... ) • Gout • Psoriatic ... JointPain #MSK #Differential
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Associated with Joint ... Pain Rash ... #dermatology #joint ... #pain #skin #rashes ... #differential #
Arthrocentesis of synovial fluid - Interpretation
 - Normal
 - Noninflammatory	
 - Inflammatory	
 - Septic

Viscosity of synovial
synovial fluid - Interpretation ... does not rule out ... 50,000 #Diagnosis #Differential ... Arthrocentesis #Joint ... Infective #Arthritis #Interpretation
Vascular Joint Pain - Differential Diagnosis Algorithm 
 - Constant Pain (Ischemia)
 - Acute Onset
 -
Vascular Joint Pain ... - Differential ... Hyperemia Spasm • Vasculitis ... Air Embolism • Vasculitis ... JointPain #MSK #Differential
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
Altered Mental Status - Differential Diagnosis
 • Neurologic: Stroke, Cerebral hypoxia, Cerebral hemorrhage, Seizure, Trauma, TBI,
Mental Status - Differential ... Trauma, TBI, Tumor, Vasculitis ... Insomnia, HTN, PRES, Pain ... Delirium - VA Joint ... #Status #AMS #Differential
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential ... vesicular eruption - Joints ... Vessels: Supply gut ... -> abdominal pain ... , testes -> pain