15 results
Hemolytic Anemias - Differential Diagnosis Algorithm

Signs of anemia and hemolysis:
 • ↓ Haptoglobin
 • ↑ LDH
- Differential ... Abnormal peripheral smear ... : • Autoimmune ... #Anemias #Differential ... Diagnosis #Algorithm #hematology
Autoimmune Hemolytic Anemia (AIHA) - Differential Diagnosis Table

Warm AIHA (48-70%)
Cold AHA (16-32%)
 • Donath-Landsteiner HA (paroxysmal
Autoimmune Hemolytic ... Anemia (AIHA) - Differential ... hemoglobinuria) • Cold Agglutinin ... #Hemolytic #Anemia ... Diagnosis #Table #hematology
Warm Antibody Autoimmune Hemolytic Anemia 
1) DIAGNOSE AIHA
 • Anemia: macrocytic > normocytic, ↑ reticulocytes
 •
Warm Antibody Autoimmune ... C3d • Blood smear ... : Differential → ... 2) LOOK FOR a cause ... management #treatment #rheumatology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Extravascular Causes ... . primary cold agglutin ... Extravascular #Causes ... #differential # ... diagnosis #hematology
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Viral infection, autoimmune ... IgM) • Blood smear ... CLL (older) • Autoimmune ... younger pts) Differential ... #anemia #hematology
Hemolytic Anemia - Differential Diagnosis Algorithm
Hereditary:
 • Peripheral blood smear + DAT + further History
 •
- Differential ... Peripheral blood smear ... idiopathic, malignancy, autoimmune ... #Anemia #Differential ... Diagnosis #Algorithm #causes
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Causes of Extravascular ... - Differential ... Cold AIHA • Alloimmune ... Extravascular #Differential ... #Hematology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
- Differential ... Agglutination - Cold agglutinins ... elliptocytosis, autoimmune ... #Anemia #Differential ... Algorithm #workup #hematology
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
Hemolysis - Differential ... Membrane): - Autoimmune ... Peripheral Blood Smear ... #Differential # ... Diagnosis #hematology
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
Causes of Thrombocytosis ... - Differential ... iron deficiency, hemolysis ... disorders (e.g. autoimmune ... #hematology #secondary