271 results
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Autoimmune Myositis - Differential ... RP-ILD), dermato-rheumatologic ... ) • Anti-Mi2 (skin ... autoimmune hepatitis, Psoriasis ... #differential #
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
infection • Lyme disease ... Plaques • Psoriasis ... arthritis • Psoriatic ... #rashes #differential ... #diagnosis #rheumatology
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Joint Disorders - Differential ... Molecular Mimicry” • Psoriatic ... arthritis - with the skin ... disorder psoriasis ... should have other symptoms
Seronegative Inflammatory Arthritis - Differential Diagnosis
 • Seronegative Rheumatoid Arthritis 
 • Infectious Arthritis: Viral, Bacterial,
Inflammatory Arthritis - Differential ... Systemic Rheumatic Disease ... Ankylosing Spondylitis, Psoriatic ... #arthritides #Differential ... #Diagnosis #rheumatology
Pruritus - Generalized Differential Diagnosis Algorithm - Systemic and Primary Causes
== Primary Skin Lesions ==
Macules /
- Generalized Differential ... • Xerosis (dry skin ... dermatitis • Psoriasis ... Cholestatic liver disease ... syndrome Psychiatric Disease
Generalized Hyperpigmentation Differentials
Use the Mnemonic "no skin SPARED"

Images from dermnet.nz and merckmanuals

Mnemonic from https://www.medscape.com/slideshow/dermatology-mnemonics-6011359#5 #diagnosis #differential
Hyperpigmentation Differentials ... the Mnemonic "no skin ... #5 #diagnosis #differential ... #symptoms #signs ... #dermatology #skin
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
trigger - Direct skin ... and duration of symptoms ... 50% of patients Skin ... angioedema Other symptoms ... Urticaria #diagnosis #rheumatology
Pruritus - Primary Skin Lesion - Differential Diagnosis Algorithm
Macules / Papules / Plaques:
 • Xerosis (dry
Pruritus - Primary Skin ... Lesion - Differential ... • Xerosis (dry skin ... dermatitis • Psoriasis ... #dermatology #Differential
Systemic Sclerosis (Scleroderma)
Multi-system autoimmune disease characterized by vasculopathy and progressive fibrosis of skin and internal organs
3
Multi-system autoimmune disease ... thickening Signs and Symptoms ... interstitial lung disease ... Scleroderma #SSc #rheumatology ... diagnosis #signs #symptoms
Diagnostic Schema for Hyperferritinemia

Pearl: Diseases associated with extreme elevations: 
1. HLH 
2. Still's disease 
3. Systemic
Hyperferritinemia Pearl: Diseases ... Still's disease ... Hyperferritinemia #Algorithm #Differential ... #Diagnosis #Hematology