15 results
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... Maculopapular rash ... vasculitis (inflamed blood ... #rash #diagnosis ... #rheumatology
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... trigger - Direct skin ... 50% of patients Skin ... Urticaria #diagnosis #rheumatology ... #comparison #table
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
centrifugum • A chronic skin ... early localized disease ... PrathitKulkarni #Erythemas #comparison ... #table #differential ... #diagnosis #dermatology
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
(blue-purple) rash ... • Erythematous rash ... ulcerations • Skin ... onset [33-74%] • Blood ... severity of the disease
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
progressing GN • New pulmonary ... tract, and often causes ... mucositis - Rash ... pulses, bruis, or blood ... Large Vessel: Blood
Sweet Syndrome

Acute febrile neutrophilic dermatosis (Sweets Syndrome) is a skin condition characterized by fever and inflamed
with systemic disease ... - Rash: multiple ... Causes: - Idiopathic ... , breast CA - Hematologic ... neutrophils in the blood
Cryofibrinogenemia Summary

Cryofibrinogenemia Epidemiology:
 • 40-70 years with a modest female predominance

Cryofibrinogenemia:
 • The precipitation of a
which can plug blood ... thrombophlebitis, pulmonary ... cryoglobulins • Negative causes ... Warfarin-induced skin ... #hematology
Pigmented Purpuric Dermatoses (PPD) - Capillaritis

Group of chronic, benign, cutaneous eruptions characterized by the presence of
extremities Schamberg Disease ... Extravasation of blood ... which allow red blood ... - This iron causes ... brown tint of the rash
TRALI vs TACO - Transfusion Reactions
TRALI:
 • Epidemiology: 0.1% of transfused patientsl
 • Risk factors: Critical
of high parity blood ... without other cause ... , and CXR with pulmonary ... #diagnosis #comparison ... #table
Scleroderma Like Conditions - Differential Diagnosis
Eosinophilic Fasciitis:
 - Orange peel induration (peau d'orange) of proximal extremities
patients with kidney disease ... Graft-Versus-Host Disease ... be seen after blood ... Differential #Diagnosis #comparison ... #table #dermatology