18 results
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
purple, hemorrhagic skin ... : • Vascular occlusion ... PURPURA: Vasculitis ... Associated - SLE ... #nonpalpable #dermatology
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Henoch Schönlein purpura ... Antiphospholipid-antibody syndrome ... • Vasculitis ... lesions • Discoid lupus ... Sarcoidosis #dermatology
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
the Skin - Differential ... Secondary: CTD: SLE ... Petechiae, Palpable purpura ... Disease • Cogan syndrome ... #skin #dermatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... inflammation Others: • Lupus ... such as systemic lupus ... reactions, and vaso-occlusive ... , and SLE) • Urinalysis
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Dermatologic Manifestations ... GPA causes disease ... • Goodpasture syndrome ... #Dermatologic ... Polyangiitis #GPA #dermatology
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• They can cause ... - Skin ulcers ... Cryoglobulins Cause ... reticularis & skin ... (e.g. systemic lupus
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
• Loose anagen syndrome ... - Secondary to Skin ... • Discoid lupus ... #dermatology #Differential ... Diagnosis #Algorithm #causes
Lupus (SLE): Mucocutaneous Manifestations

 • Langerhan cells and keratinocytes release cytokines -> localized inflammatory response ->
Lupus (SLE): Mucocutaneous ... areas -> Scaring alopecia ... hair follicles -> causes ... inflammation on skin ... Livedo Reticularis, Vasculitis
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Capitis - Skin ... Disease: Discoid lupus ... : Lupus erythematosus ... , Loose anagen syndrome ... Differential #Diagnosis #dermatology
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
(SLE) General: ... Sjögrens (15%) Skin ... Butterfly rash, Vasculitis ... , Purpura, Urticaria ... Demyelinating syndromes