26 results
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Capitis - Skin ... Disease: Discoid ... , Loose anagen syndrome ... • Pull test ... Vitamin D levels Systemic
Pruritus - Generalized Differential Diagnosis Algorithm - Systemic and Primary Causes
== Primary Skin Lesions ==
Macules /
Differential Diagnosis Algorithm ... Primary Causes ... Liver Function Tests ... Myelodisplastic syndrome ... #causes
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... : • Behçet Syndrome ... • Cogan Syndrome ... retinopathy Lab Tests ... differential #diagnosis #rheumatology
Pyoderma Gangrenosum: Autoimmune disorder resulting in a vasculitis which causes slowly progressive 
ulceration of the skin.
resulting in a vasculitis ... which causes slowly ... ulceration of the skin ... a number of systemic ... #Photo #Dermatology
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
Differential Diagnosis Algorithm ... • Loose anagen syndrome ... - Secondary to Skin ... Disease • ... #causes
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
Systemic disease ... , small-vessel vasculitis ... association • M > F Clinical ... (Clinical Dx). ... signs #symptoms #rheumatology
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... Rarely dominate the clinical ... • Goodpasture syndrome ... Polyangiitis #GPA #dermatology ... rash #diagnosis #rheumatology
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Clinical Features ... Sjögrens (15%) Skin ... Butterfly rash, Vasculitis ... Demyelinating syndromes ... pain (20%) Renal disease
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• They can cause ... - Purpura - Skin ... Cryoglobulins Cause ... : • Clinical triad ... • Autoimmune diseases
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Mucocutaneous lymph node syndrome ... tract, and often causes ... • Behcet syndrome ... • Cogan syndrome ... Differential #Diagnosis #Rheumatology