23 results
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
parallel to lines of skin ... palms/soles - Differential ... nummular eczema, tinea ... Pityriasis #rosea #clinical ... #dermatology #photo
Disorders of Pigmentations - Hypopigmentation and Hyperpigmentation - Differential Diagnosis Algorithm

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

Diffuse Congenital - Generalized hypopigmentation of hair, eyes, skin
 • Phenylketonuria
- Differential ... sclerosis (white "ash ... Localized Acquired • Tinea ... Hypopigmentation #disorders ... #skin #dermatology
Erythema Annulare Centrifugum (EAC),
This is erythema annulare centrifugum (EAC), one of the “figurate erythemas.” These lesions
Erythema Annulare ... Commonly mistaken ... for tinea. ... Centrifugum #EAC #clinical ... #photo #dermatology
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Over the years: rash ... rubrum is most commonly ... skin of inflamed ... Variety #type #clinical ... #photo #foot #dermatology
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
or trunk most commonly ... • Most commonly ... • A chronic skin ... comparison #table #differential ... #diagnosis #dermatology
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Allopecia - Differential ... Folliculitis decalvans, Tinea ... Capitis - Skin ... , erosions, or erythema ... #Diagnosis #dermatology
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
polyangiitis (GPA) is common ... disease or more commonly ... Rarely dominate the clinical ... Maculopapular rash ... reticularis Differential
Skin Hyperpigmentation - Differential Diagnosis Algorithm
Diffuse:
 • Tanning
 • Adverse cutaneous drug eruption
 • Addison's disease
- Differential ... • Melasma • Tinea ... versicolor (more commonly ... Hyperpigmentation #disorders ... #skin #dermatology
Pyoderma Gangrenosum: Autoimmune disorder resulting in a vasculitis which causes slowly progressive 
ulceration of the skin.
Gangrenosum: Autoimmune disorder ... ulceration of the skin ... diseases, it is most commonly ... Images #Clinical ... #Photo #Dermatology