19 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Mnemonic NO cause ... , EBV, HIV, HepB ... #Differential #Diagnosis ... #Dermatology #SkinRash
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
) Differential Diagnosis ... stress FOCAL / LOCALIZED ... Disease • Discoid ... #dermatology #Differential ... #causes
Focal / Localized Hair Loss (Alopecia) - Differential Diagnosis Algorithm

Scarring - Irreversible-biopsy required
 - Infectious
Focal / Localized ... - Differential Diagnosis ... Disease • Discoid ... #dermatology #Differential ... #causes
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Diagnosis Framework ... for Hair Loss Localized ... Skin Disease: Discoid ... #Differential #Diagnosis ... #dermatology #Hairloss
Vesiculobullous Skin Rash - Differential Diagnosis Algorithm
Vesicles Fragile/EasiIy Ruptured - Intraepidermal blisters, possibly crusts/erosions
 - Inflammatory
Vesiculobullous Skin Rash ... Herpes zoster (shingles ... Vesiculobullous #SkinRash ... #dermatology #Differential ... #causes
Lupus (SLE): Mucocutaneous Manifestations

 • Langerhan cells and keratinocytes release cytokines -> localized inflammatory response ->
release cytokines -> localized ... hair follicles -> causes ... follicular plugging -> Discoid ... Rash • UV light ... pathophysiology #diagnosis
Skin Hypopigmentation - Differential Diagnosis Algorithm

Diffuse Congenital - Generalized hypopigmentation of hair, eyes, skin
 • Phenylketonuria
- Differential Diagnosis ... • Vitiligo Localized ... sclerosis (white "ash ... disorders #skin #dermatology ... #Algorithm #causes
Eczematous Skin Rash - Differential Diagnosis Algorithm
Eczematous - Pruritic/Scaly/Erythematous lesions. Usually poorly demarcated
 • Atopic Dermatitis
Eczematous Skin Rash ... - Differential Diagnosis ... #Eczematous #SkinRash ... #dermatology #Differential ... #causes
Reactive Skin Rash - Differential Diagnosis Algorithm
Reactive erythematous with various morphology
 • Urticaria - Firm /
Reactive Skin Rash ... - Differential Diagnosis ... #Reactive #SkinRash ... #dermatology #Differential ... #causes
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin Rash ... and soles • Discoid ... Papulosquamous #SkinRash ... #dermatology #Differential ... #causes