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

Warm AIHA (48-70%)
Cold AHA (16-32%)
 • Donath-Landsteiner HA (paroxysmal
Autoimmune Hemolytic Anemia ... (AIHA) - Differential ... Donath-Landsteiner HA (paroxysmal ... #AIHA #Differential ... Diagnosis #Table #hematology
Differential Diagnosis for Hemolytic Anemia
Intrinsic Causes:
 • Enzyme deficiencies ex. G6PD, pyruvate kinase 
 • Hemoglobinopathies
Differential Diagnosis ... Hypersplenism • AIHA ... incompatibility • Paroxysmal ... Diagnosis #causes #classification ... #hematology
Hemolytic Anemias - Differential Diagnosis Algorithm

Signs of anemia and hemolysis:
 • ↓ Haptoglobin
 • ↑ LDH
Hemolytic Anemias ... - Differential ... (AIHAs) • Alloimmune ... #Differential # ... Diagnosis #Algorithm #hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Transfusion reaction, Paroxysmal ... - Autoimmune (AIHA ... - Autoimmune (AIHA ... Extravascular #Causes #differential ... #anemia
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Intravascular Hemolysis - Differential ... • Cold AIHA ... immune-complex hemolytic anemia ... Extravascular #Differential ... Algorithm #Causes #Hematology
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
Hemolysis - Differential ... Autoimmune: Warm AIHA ... Defects: Sickle cell anemia ... Laboratory Tests ... #Diagnosis #hematology
Expected DAT Results in Autoimmune Hemolysis
DAT Negative Hemolysis
 • DAT Poly ( - ), IgG (
), C3d ( - ) WAIHA ... , C3d ( +/- ) Paroxysmal ... #antiglobulin #test ... Autoimmune #Hemolysis #hematology
Pancytopenia - Differential Diagnosis

Congenital Diseases:
• GATA2 deficiency
• Fanconi’s anemia
• Wiskott-Aldrich syndrome
• Ribosomopathy or telomeropathy

Cancer:
• Leukemia
• Lymphoma

Inflammatory
Pancytopenia - Differential ... deficiency • Fanconi’s anemia ... erythematosus • HLH • Paroxysmal ... #Pancytopenia #Differential ... #Diagnosis #Hematology
Hemolysis - Diagnostic Algorithm and Causes

Increased red cell production: 
 • Increased Reticulocytosis/polychromasia 
 • Erythroid
breakdown • Anaemia ... Hemolysis #Hemolytic #Anemia ... #Algorithm #Differential ... Causes #Workup #Hematology ... GrepMed Recommended Text
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Causes of Anemia ... Volume (MCV) - Differential ... #MCV #Classification ... #Differential # ... Algorithm #Causes #Hematology