9 results
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
) Differential Diagnosis ... erythematosus ... - Drugs • Oral ... - Secondary to Skin ... erythematosus
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Allopecia - Differential ... Diagnosis Framework ... Localized / Focal ... erythematosus, ... • Drugs: Oral
Vesiculobullous Skin Rash - Differential Diagnosis Algorithm
Vesicles Fragile/EasiIy Ruptured - Intraepidermal blisters, possibly crusts/erosions
 - Inflammatory
Vesiculobullous Skin ... Rash - Differential ... Bullous systemic lupus ... erythematous ... Vesiculobullous #SkinRash
Pustular Skin Rash - Differential Diagnosis Algorithm
Pruritic / Scaly / Erythematous lesions, usually poorly demarcated
Acneiform -
Pustular Skin Rash ... - Differential ... drinks • Perioral Dermatitis ... centered around hair ... #Pustular #SkinRash
Focal / Localized Hair Loss (Alopecia) - Differential Diagnosis Algorithm

Scarring - Irreversible-biopsy required
 - Infectious
Focal / Localized ... ) - Differential ... - Secondary to Skin ... • Discoid lupus ... erythematosus
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin ... Rash - Differential ... Erythrematous ... soles • Discoid Lupus ... Papulosquamous #SkinRash
Oral Skin Ulcers - Differential Diagnosis Algorithm
Single Ulcer:
 • Traumatic ulcer
 • Angular ulcer
 • Aphthous
Oral Skin Ulcers ... - Differential ... Lichen planus • Lupus ... erythematosus ... #mouth #SkinRash
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
• Seborrheic dermatitis ... Folliculitis - Any hair-bearing ... breasts, vagina, oral ... dermatology #rash #differential ... #diagnosis #skin
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
inflammation Others: • Lupus ... : erythematous nodules ... - Recurrent oral ... such as systemic lupus ... erythematosus,