38 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
Hyperpigmentation Differentials ... the Mnemonic "no skin ... #5 #diagnosis #differential ... #symptoms #signs ... #dermatology #skin
Systemic Sclerosis (Scleroderma)
Multi-system autoimmune disease characterized by vasculopathy and progressive fibrosis of skin and internal organs
3
progressive fibrosis of skin ... LcSSc) - distal skin ... DcSSc; diffuse) - skin ... salt and pepper" skin ... changes): 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 ... 1% of patients Skin ... #comparison #table
Sarcoidosis 
Non-caseating granulomas (Composed of T-helper & inflammatory cells) 
Clinical:
 • Disease fatal in 10% of
Clinical: • Disease ... neuropathies • Skin ... dysrhythmias • Ophthalmologic ... Sarcoidosis #Diagnosis #Symptoms ... #Signs #Pulmonary
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
response to local skin ... retinal damage) • Skin ... test (this is a skin ... ) Differential Diagnosis ... #signs #symptoms
Eosinophil Disorders Testing Algorithm
INDICATIONS FOR TESTING:
 • Peripheral blood eosinophilia/hypereosinophilia uncovered incidentally during medical evaluation or
organ-specific signs ... or symptoms (eg ... , skin or esophageal ... Disorders #Algorithm #Differential ... #diagnosis #hematology
Erythematous Rashes - THE ALGORITHMIC APPROACH

Characterized by diffuse redness of the skin due to
capillary congestion, erythematous
redness of the skin ... staphylococcal scalded skin ... , the differential ... includes Kawasaki disease ... #Diagnosis #Dermatology
Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)
Definition: 
 • Severe adverse drug reaction, characterized by
Eosinophilia and Systemic Symptoms ... characterized by extensive skin ... Symptoms: • The ... Skin involvement ... Resolution > 15 days Differentials
Adult-Onset Still's Disease
Clinical triad: Fever, Arthralgia/arthritis, Skin rash ± odynophagia
+ Biological inflammation: Increased neutrophils, Hyperferritinemia, decreased
Adult-Onset Still's Disease ... Arthralgia/arthritis, Skin ... fraction < 20% Differential ... #diagnosis #management ... #treatment #rheumatology
Highlighted Conditions With Arteritis or Periarteritis of the Coronaries
Takayasu's arteritis:
 - Onset < 40 yrs
 -
yrs - Cranial symptoms ... Polyarteritis nodosa: - Skin ... IgG4-related disease ... Coronaries #Arteritis #Differential ... Diagnosis #Cardiology #Table