8 results
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Allopecia - Differential ... cellulitis of the scalp ... Folliculitis decalvans, Tinea ... Disease: Discoid lupus ... Scaling, pustules, crusts
Pustular Skin Rash - Differential Diagnosis Algorithm
Pruritic / Scaly / Erythematous lesions, usually poorly demarcated
Acneiform -
Algorithm Pruritic / Scaly ... drinks • Perioral Dermatitis ... thick honey-yellow crusts ... #Pustular #SkinRash ... Diagnosis #Algorithm #causes
Erythema Annulare Centrifugum (EAC),
This is erythema annulare centrifugum (EAC), one of the “figurate erythemas.” These lesions
Commonly mistaken ... for tinea. ... Most cases are idiopathic ... #clinical #photo ... #dermatology #skinrash
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
Common Dermatological ... Conditions - Distribution ... honey-colored crusts ... dermatology #rash #differential ... #distribution #
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
Hair Loss (Alopecia ... Diffuse and Focal) Differential ... Alopecia totalis (all scalp ... • Aplasia cutis ... Diagnosis #Algorithm #causes
Nonscarring Alopecias: Clinical features of the most common types
Patterned hair loss:
 - Age: puberty or older
features of the most common ... Patterned hair loss ... Tinea capitis ... : any area of scalp ... Alopecia #types #differential
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... Drug Associated (Commonly ... well as inner ear ... such as systemic lupus ... Anorexia • Weight loss
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Anorexia • Weight loss ... malaise, weight loss ... New headache, scalp ... Nodosa: • PAN most commonly ... tract, and often causes