38 results
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
Differential Diagnosis Algorithm ... Irreversible-biopsy required • Lupus ... • Discoid lupus ... Differential #Diagnosis #Algorithm ... #causes
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
: • Scarring Alopecia ... Disease: Discoid lupus ... , Traction alopecia ... : Lupus erythematosus ... Scaling, pustules, crusts
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
Systemic Lupus Erythematosus ... Photosensitivity, Alopecia ... , oral ulcers, Lupus ... Positive in 60-80% of cases ... 80% - Low complement
SLICC SLE Diagnostic Criteria - Systemic Lupus Erythematosus
Clinical and Immunologic Criteria

CLINICAL CRITERIA
 - ACUTE CUTANEOUS LUPUS
Criteria - Systemic Lupus ... ACUTE CUTANEOUS LUPUS ... CHRONIC CUTANEOUS LUPUS ... - NON-SCARRING ALOPECIA ... anticoagulant - Low complement
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
cases, drug-dependent ... 90% - Low complement ... Discontinuation of causal ... Photosensitivity, Alopecia ... 80% - Low complement
EULAR/ACR Classification Criteria for Systemic Lupus Erythematosus
Clinical Domains:
 • Constitutional domain: Fever
 • Cutaneous domain: Non-scarring
Criteria for Systemic Lupus ... : Non-scarring alopecia ... Acute cutaneous lupus ... Class II or V lupus ... anticoagulant • Complement
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
pathophysiologic causes ... staining): • Low Complement ... Post-strep GN, Lupus ... Idiopathic • Normal Complement ... differential #diagnosis #algorithm
Lupus (SLE): Mucocutaneous Manifestations

 • Langerhan cells and keratinocytes release cytokines -> localized inflammatory response ->
Lupus (SLE): Mucocutaneous ... Subacute cutaneous lupus ... areas -> Scaring alopecia ... hair follicles -> causes ... mechanism) -> Alopecia
Great Mimickers - SHALLOTS Mnemonic

S- Syphilis - Neurosyphilis, aortitis, gummas... Granulomas can form anywhere! Skin, mucosa,
What doesn't HIV cause ... anything L - Lupus ... ulcers, arthritis, alopecia ... Could be lupus in ... consumption- number one cause
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... S - Systemic Lupus ... Hypocomplementemia #Low #Complement