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

Warm AIHA (48-70%)
Cold AHA (16-32%)
 • Donath-Landsteiner HA (paroxysmal
Autoimmune Hemolytic ... Anemia (AIHA) - ... Agglutinin Disease ... Mixed-type AIHA (7-8%) DAT-negative ... #Table #hematology
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Agglutinin Syndrome ... Diagnosis: • hemolytic ... anemia • Cold ... #hemolytic #anemia ... #hematology #diagnosis
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Diagnostic Framework ... anemia): ... uremic syndrome ... agglutin disease ... #hematology #anemia
Expected DAT Results in Autoimmune Hemolysis
DAT Negative Hemolysis
 • DAT Poly ( - ), IgG (
DAT Negative Hemolysis ... , C3d ( +/- ) Cold ... agglutinin disease ... ) Paroxysmal cold ... #hematology #diagnosis
Warm vs Cold Autoimmune Hemolytic Anemia
Warm Autoimmune Hemolytic Anemia:
 • Mechanism: IgG and Complement-mediated
 • Etiology:
Hemolytic Anemia ... Spherocytes • Treatment ... • Treatment: Warm ... #Anemia #hematology ... #diagnosis #comparison
Autoimmune Hemolytic Anemia (AIHA) Pathophysiology - Warm vs Cold AIHA
Warm AIHA:
 - 70%; IgG mediated
 -
Autoimmune Hemolytic ... - Warm vs Cold ... IgG mediated - DAT ... IgM mediated - DAT ... #diagnosis #hematology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia ... Algorithm • Sickle ... Agglutination - Cold ... agglutinins disease ... #Diagnosis #Algorithm
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
- Differential Diagnosis ... Algorithm Extravascular ... Warm AIHA • Cold ... anemia • ... #Hematology
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
Diagnosis Framework ... Autoimmune: Warm AIHA, Cold ... Drug-associated, PCH, Evans Syndrome ... Defects: Sickle cell anemia ... #hematology
Myelodysplastic Syndrome (MD) - Diagnosis and Management Summary
myelo (marrow) -dys- (abnormal) -plastic (shape) = funny-shaped cells
Myelodysplastic Syndrome ... : 70 years old, ... cytopenias (usually anemia ... #Management #treatment ... #hematology #oncology