10 results
Infectious Joint Pain - Differential Diagnosis Algorithm 
Polyarticular Join Pain
 • Viral Myalgia
 • Viral Arthritis
Infectious Joint ... Polyarticular Join ... & Symmetrical Rash ... • Endocarditis ... Infectious #JointPain #MSK
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Associated with Joint ... Pain Rash ... parvovirus B19 infection ... Malar rash ... differential #diagnosis #rheumatology
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Joint Disorders ... within 1 month of infection ... arthritis - with the skin ... like “butterfly rash ... #Disorders #msk
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Sjögrens (15%) Skin ... Photosensitivity, Butterfly rash ... phenomenon (20%) Joints ... Pericarditis, Endocarditis ... symptoms #diagnosis #rheumatology
Extra-articular and Other Conditions Associated with Joint Pain

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
Bacterial or viral infection ... Subacute bacterial endocarditis ... Scleroderma Thickened skin ... fever - Bacterial endocarditis ... differential #diagnosis #rheumatology
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
By: - Chronic Infection ... Rubella Bacterial Infection ... • Bacterial endocarditis ... Differential #Diagnosis #MSK ... #rheumatology #
Capnocytophaga Canimorsus Skin Rash

40 M presents w/ N, V, severe epigastric pain. SHx: smoker, drinks 18
Capnocytophaga Canimorsus Skin ... to meningitis, endocarditis ... C. canimorsus infection ... Capnocytophaga infection ... #clinical #photo
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
3rd Decade Skin ... Non-autoimmune rheumatologic ... Arthritis: • Joint ... arthropathy • 90% joints ... • Libman-Sacks endocarditis
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
vesicular eruption • Joints ... , mucositis • Rash ... Palpable purpura, joint ... , recent viral infection ... Differential #Diagnosis #Rheumatology
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
pulmonary symptoms • Rheumatologic ... muscle aches, joint ... osteomyelitis or skin ... arthritis, and endocarditis ... Mouth, throat, skin