19 results
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
the Mnemonic "no skin ... -6011359#5 #diagnosis ... differential #symptoms #signs ... #dermatology #skin ... #skinrash
Fever in Returning Travelers from Tropical Regions - Frequent Differential Diagnoses
Medical History:
 • Skin exposure to
Fever in Returning Travelers ... Frequent Differential Diagnoses ... Medical History: • Skin ... without localizing signs ... #differential #diagnosis
Ulcerative Blastomycosis Skin Lesion
57 asymptomatic M from Indiana nonpruritic, painless, progressive skin lesion lower back x
Blastomycosis Skin ... Denies any travel ... Diagnosis? ... Blastomycosis #SkinRash ... #dermatology #clinical
Systemic Sclerosis (Scleroderma)
Multi-system autoimmune disease characterized by vasculopathy and progressive fibrosis of skin and internal organs
3
LcSSc) - distal skin ... thickening Signs ... changes): skin ... Scleroderma #SSc #rheumatology ... #diagnosis #signs
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
organ-specific signs ... symptoms (eg, skin ... #Differential #diagnosis ... #hematology #eosinophilia
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
trigger - Direct skin ... Disorientation, vertigo Diagnostic ... Cold #Urticaria #diagnosis ... #rheumatology # ... comparison #table
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Sjögrens (15%) Skin ... erythematosus #signs ... #symptoms #diagnosis ... #rheumatology
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin ... - Differential Diagnosis ... Auspitz sign, Koebner's ... Papulosquamous #SkinRash ... #Diagnosis #Algorithm
Inflammatory Myopathies
Dermatomyositis
 • Onset: Subacute
 • Pattern: Proximal
 • CK: Up to 50X ULN
 • Autoantibodies:
heliotrope, shawl sign ... Associated Features: Diagnosis ... over years, often diagnosed ... #differential #diagnosis ... #comparison #rheumatology
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
chest (in a V-sign ... Inverse Gottron’s sign ... ulcerations • Skin ... Dermatomyositis #rheumatology ... #dermatology #diagnosis