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

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

Diffuse Congenital - Generalized hypopigmentation of hair, eyes, skin
 • Phenylketonuria
Skin Hypopigmentation ... sclerosis (white "ash ... Localized Acquired • Tinea ... #dermatology #Differential ... Diagnosis #Algorithm #causes
Skin Hyperpigmentation - Differential Diagnosis Algorithm
Diffuse:
 • Tanning
 • Adverse cutaneous drug eruption
 • Addison's disease
Skin Hyperpigmentation ... • Melasma • Tinea ... versicolor (more commonly ... #dermatology #Differential ... Diagnosis #Algorithm #causes
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Over the years: rash ... dermatophytes cause ... rubrum is most commonly ... skin of inflamed ... #foot #dermatology
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
dermal macular hyperpigmentation ... • Most commonly ... • Causes are multiple ... comparison #table #differential ... #diagnosis #dermatology
Primary Biliary Cirrhosis (PBC) - Summary

PBC Epidemiology:
 • Female:Male 9:1
 • Common European descent
 • Age:
Female:Male 9:1 • Common ... intralobular bile ducts causes ... Examination: • Skin ... hyperpigmentation ... bile ducts Differential
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
Skin rash and malaise ... commonly characterize ... resembling rashes caused ... Diagnosis #Clinical #Photo ... #Dermatology
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
Common Dermatological ... background of hyperpigmentation ... Extensor surfaces of arms ... ; pruritis #dermatology ... #rash #differential
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
: HSV 1): • Herpes ... Maculopapular rash ... • Common clinical ... common • CSF ... • Uveitis • Rash
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
loss, arthralgia, arm ... bruits, asymmetric arm ... Nodosa: • PAN most commonly ... , mucositis • Rash ... tract, and often causes