32 results
Autoimmune Hemolytic Anemia (AIHA) - Differential Diagnosis Table

Warm AIHA (48-70%)
Cold AHA (16-32%)
 • Donath-Landsteiner HA (paroxysmal
Diagnosis Table ... Cold Agglutinin Disease ... AIHA (7-8%) DAT-negative ... #Diagnosis #Table ... #hematology
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
three primary pathophysiologic ... involvement: Anti-GBM Disease ... Pauci-immune mediated (Negative ... Glomerulonephritis #Vasculitis #differential ... diagnosis #algorithm #rheumatology
Adult-Onset Still's Disease
Clinical triad: Fever, Arthralgia/arthritis, Skin rash ± odynophagia
+ Biological inflammation: Increased neutrophils, Hyperferritinemia, decreased
Adult-Onset Still's Disease ... Clinical triad ... fraction < 20% Differential ... #diagnosis #management ... #treatment #rheumatology
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
Erythrocytosis) - Differential ... Diagnosis Algorithm Relative ... Abnormal Abdominal Ultrasound ... Erythrocytosis #Differential ... Algorithm #Causes #Hematology
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
Diagnosis and Management ... 40, F:M 9:1 • Clinical ... pANCA anti-MPO - Negative ... Evolution: Chronic disease ... #Summary #rheumatology
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Diagnosis and Management ... Lung Abscess Pathophysiology ... Lung Abscess - Clinical ... Lung Abscess Differential ... Abscess #pulmonary #differential
Bandemia Overview

Normal: < 1%
Clinically significant: > 10%

Band neutrophils are slightly less mature than segmented neutrophils and
Normal: < 1% Clinically ... • Autoimmune diseases ... likelihood of negative ... clinical outcomes ... #pathophysiology
Acute Fatty Liver of Pregnancy (AFLP)
Pathophysiology:
 • Defect in fetal free fatty acid metabolism products →
Pregnancy (AFLP) Pathophysiology ... Antithrombin Ill • Ultrasound ... infiltration) Differential ... Maternal Support - Critical ... #pathophysiology
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
Association with disease ... -15% If SLE is clinically ... Negative association ... erythematosus #diagnosis #rheumatology ... #table #ANA
Meralgia paresthetica: Pathogenesis and Clinical Findings
Compression/injury of Lateral Femoral Cutaneous Nerve (LFCN) -> Meralgia paresthetica
 •
Pathogenesis and Clinical ... intervertebral disc disease ... Stabbing) - Negative ... MeralgiaParesthetica #MSK #pathophysiology ... #differential #