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

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

Diffuse Congenital - Generalized hypopigmentation of hair, eyes, skin
 • Phenylketonuria
Skin Hypopigmentation ... Localized Acquired • Tinea ... #disorders #skin ... #dermatology #Differential ... #causes
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
parallel to lines of skin ... - Differential diagnosis ... nummular eczema, tinea ... rosea #clinical #dermatology ... #photo #PhysicalExam
Skin Hyperpigmentation - Differential Diagnosis Algorithm
Diffuse:
 • Tanning
 • Adverse cutaneous drug eruption
 • Addison's disease
Skin Hyperpigmentation ... • Melasma • Tinea ... #disorders #skin ... #dermatology #Differential ... #causes
Physiologic Skin Changes in Pregnancy - Differential Diagnosis Algorithm

Face
 • Melasma
Abdomen
 • Linea Nigra 
Hormone induced
- Differential Diagnosis ... Melasma Abdomen • Linea ... Hormone induced • Hyperpigmentation ... #dermatology #Differential ... #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 ... skin of inflamed ... #foot #dermatology
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Diagnosis Algorithm ... Vasculitis - Collagen disorders ... cryoglobulins • Skin ... #dermatology #physicalexam
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin ... Rash - Differential ... Herald's atch • Tinea ... Papulosquamous #SkinRash #dermatology ... #Algorithm #causes
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
- Differential Diagnosis ... Folliculitis decalvans, Tinea ... Capitis - Skin ... Broken Hair Shafts: Tinea ... #dermatology #Hairloss
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
centrifugum • A chronic skin ... dermal macular hyperpigmentation ... gyratum repens • A skin ... #differential #diagnosis ... #dermatology #compared