19 results
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Warm AIHA • Cold ... • PK deficiency ... perfringens - Complement-Mediated ... • Cold AIHA ... #Causes #Hematology
Warm vs Cold Autoimmune Hemolytic Anemia
Warm Autoimmune Hemolytic Anemia:
 • Mechanism: IgG and Complement-mediated
 • Etiology:
Warm vs Cold Autoimmune ... Mechanism: IgG and Complement-mediated ... Mechanism: IgM and Complement-mediated ... BostonChiefs #Warm #Cold ... #Anemia #hematology
Differential diagnosis of schistocytes / fragmentation hemolysis:
 • Thrombotic microangiopathies (TMA)
    - TTP
fragmentation hemolysis ... (ST-HUS) - Complement-mediated ... • Severe B12 deficiency ... differential #diagnosis #hematology ... #hemolysis
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Differential Diagnosis Algorithm ... Agglutination - Cold ... Differential #Diagnosis #Algorithm ... #workup #hematology ... #testing
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Framework for Hemolysis ... Autoimmune (AIHA)"Cold ... (e.g. primary cold ... G6PD deficiency) ... differential #diagnosis #hematology
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Diagnosis: • hemolytic ... Positive Coombs testing ... post infectious setting ... temperatures by fixing complement ... #anemia #hematology
Complement Deficiency Testing Algorithm
 • Normal CH50 and AH50 AND High suspicion for complement deficiency
 •
Complement Deficiency ... Testing Algorithm ... deficiency • Low ... #Deficiency #Testing ... #Algorithm #hematology
Algorithmic Approach to Anemia - Differential Diagnosis Framework by MCV

Microcytic (MCV < 80) "TAILS":
 • Thalassemia
Algorithmic Approach ... -100): • Non-hemolytic ... anemia, CKD • Hemolytic ... #Anemia #MCV #Algorithm ... Differential #Diagnosis #hematology
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
Microangiopathic Hemolytic ... Cell Agglutinate: Cold ... autoimmune hemolytic ... anemia, Paroxysmal cold ... differential #diagnosis #hematology
Causes of Anemia with Normal Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased WBCs
 - Decreased/NormaI
Differential Diagnosis Algorithm ... Bleed • Hemolysis ... Microangiopathic Hemolytic ... • Early Iron Deficiency ... #Causes #Hematology