115 results
Pulmonary Renal Syndromes and Mimics - Differential Diagnosis Framework
Diffuse alveolar hemorrhage + rapidly progressive glomerulonephritis
90%:
 -
- Anti-GBM Disease ... anti-GBM) 10%: - Low Complement ... Levels: SLE, Cryoglobulinemic ... - Normal Complement ... , Behcet's Disease
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
Non-specific; common in SLE ... RA Anti-dsDNA - SLE ... - Drug-induced SLE ... c-ANCA - Vasculitis ... granulomatosis p-ANCA - Vasculitis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
(Granulomatous disease ... atherosclerotic disease ... most important diseases ... against MPO • Complement ... , and SLE) • Urinalysis
Effect of Selected Diseases on Complement Levels - C3, C4
 • SLE C3 ↓ C4 ↓↓
Effect of Selected Diseases ... on Complement Levels ... - C3, C4 • SLE ... • Infection eg SBE ... ThePeanutKidney #Complement
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Differential Diagnosis Algorithm ... ): SS, SC, SE, Sβ ... cardiac valve, vasculitis ... Differential #Diagnosis #Algorithm ... #workup #hematology
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
staining): • Low Complement ... Idiopathic • Normal Complement ... involvement: Anti-GBM Disease ... Glomerulonephritis #Vasculitis ... differential #diagnosis #algorithm
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
• Immunologic Workup ... 90% - Low complement ... • Immunologic Workup ... 80% - Low complement ... Evolution: Chronic disease
Hyperthyroidism (low TSH, High T4/T3) - Diagnostic Algorithm

Radioactive iodine scan – get if concern for nodular
) - Diagnostic Algorithm ... affects diagnostic workup ... management options (see ... Hyperthyroid #Diagnosis #Algorithm ... #Workup #Endocrinology
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
Erythematosus (SLE ... are evocative of SLE ... • Immunologic Workup ... 80% - Low complement ... Evolution: Chronic disease
Kawasaki Disease - Workup and Diagnostic Algorithm #Diagnosis #Management #Peds #Pediatrics #Kawasaki #Disease #Algorithm #CRASH #BURN
Kawasaki Disease ... - Workup and Diagnostic ... Algorithm #Diagnosis ... Pediatrics #Kawasaki #Disease ... #Algorithm #CRASH