8 results
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Differential Diagnosis Algorithm ... (lupus, RA, Sjogren's ... deficiency Work ... #Causes #dermatology
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
• Immunologic Workup ... in >90% - Low ... • Immunologic Workup ... 60-80% - Low ... #table #rheumatology
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
Systemic Lupus Erythematosus ... • Immunologic Workup ... Positive in 60-80% of cases ... 60-80% - Low ... Management #Summary #rheumatology
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
pathophysiologic causes ... staining): • Low ... Post-strep GN, Lupus ... Glomerulonephritis #Vasculitis ... differential #diagnosis #algorithm
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• They can cause ... Cryoglobulins Cause ... factor level • Low ... (e.g. systemic lupus ... erythematosus (SLE
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 ... • Complement (Low ... , and SLE) • Urinalysis
Polycythemia - Differential Diagnosis Algorithm
Polycythemia itself isn’t a diagnosis. Like many things, it is a condition
Differential Diagnosis Algorithm ... an underlying cause ... Better call hematology ... levels: realllly low ... #workup #hematology
Drug Induced Lupus (DIL)
 • Epidemiology: -10% of all lupus cases, drug-dependent, 4:1 to 1:1 F:M
is rare in DIL, SCLE-DIL ... • Immunologic Workup ... in >90% - Low ... Discontinuation of causal ... #DIL #rheumatology