8 results
Disorders of Pigmentations - Hypopigmentation and Hyperpigmentation - Differential Diagnosis Algorithm

HYPOPIGMENTATION
Diffuse Congenital - Generalized hypopigmentation of
Disorders of Pigmentations ... sclerosis (white "ash ... versicolor (more commonly ... #disorders #skin ... #Algorithm #causes
Skin Hypopigmentation - Differential Diagnosis Algorithm

Diffuse Congenital - Generalized hypopigmentation of hair, eyes, skin
 • Phenylketonuria
Skin Hypopigmentation ... sclerosis (white "ash ... Localized Acquired • Tinea ... #disorders #skin ... #Algorithm #causes
Skin Hyperpigmentation - Differential Diagnosis Algorithm
Diffuse:
 • Tanning
 • Adverse cutaneous drug eruption
 • Addison's disease
Skin Hyperpigmentation ... • Melasma • Tinea ... versicolor (more commonly ... #disorders #skin ... #Algorithm #causes
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Over the years: rash ... Diagnosis? ... dermatophytes cause ... rubrum is most commonly ... skin of inflamed
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
dermal macular hyperpigmentation ... or trunk most commonly ... • Most commonly ... include: infections (HSV ... #differential #diagnosis
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
Common Dermatological ... background of hyperpigmentation ... #dermatology #rash ... #differential #diagnosis ... #skin #common #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
of shoulder and hip ... Nodosa: • PAN most commonly ... , mucositis • Rash ... present) Henoch Schonlein ... tract, and often causes
PALM RASHES 
Common features and patterns:
1.	Color:
o	Red or erythematous: Common in inflammatory or allergic reactions.
o	Purple or purpuric:
depigmentation disorders ... occur in chronic skin ... post-inflammatory hyperpigmentation ... Seen in systemic causes ... Fungal Infections (Tinea