93 results
Autoimmune Hemolytic Anemia (AIHA) Pathophysiology - Warm vs Cold AIHA
Warm AIHA:
 - 70%; IgG mediated
 -
Autoimmune Hemolytic ... Anemia (AIHA) Pathophysiology ... or negative - Smear ... C3 positive - Smear ... #Pathophysiology
Warm Antibody Autoimmune Hemolytic Anemia 
1) DIAGNOSE AIHA
 • Anemia: macrocytic > normocytic, ↑ reticulocytes
 •
Warm Antibody Autoimmune ... Hemolytic Anemia ... C3d • Blood smear ... Warm #Antibody #Autoimmune ... #diagnosis #management
Peripheral Blood Smear Analysis
Hypochromia
Megaloblastic Anemia
Schistocytes: Microangiopathic hemolytic anemia (e.g. DIC, TTP, HUS)
Microspherocytes: Autoimmune hemolytic anemia
Sickled red
Peripheral Blood Smear ... Megaloblastic Anemia ... Microspherocytes: Autoimmune ... hemolytic anemia ... Peripheral #Blood #Smear
Hemolytic Anemias - Differential Diagnosis Algorithm

Signs of anemia and hemolysis:
 • ↓ Haptoglobin
 • ↑ LDH
Algorithm Signs of anemia ... Abnormal peripheral smear ... Hemolysis: • Autoimmune ... Anemias (AIHAs) • Alloimmune
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Megakaryopoiesis • Aplastic Anemia ... methotrexate) • Drugs Autoimmune ... CLL • APLA Alloimmune ... Non-lmmune: • HELLP Syndrome
Hemolytic Anemia - Differential Diagnosis Algorithm
Hereditary:
 • Peripheral blood smear + DAT + further History
 •
Hemolytic Anemia ... Peripheral blood smear ... → Sickle Cell anemia ... idiopathic, malignancy, autoimmune ... Microangiopathic hemolytic anemia
Acquired von Willebrand Syndrome - Diagnosis and Management
 • Autoantibodies to vWF: Lymphoproliferative disorders (e.g. lymphoma,
von Willebrand Syndrome ... Diagnosis and Management ... thrombocythemia), Autoimmune ... disorders • Shear ... vonWillebrand #Syndrome
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
Membrane): - Autoimmune ... Drug-associated, PCH, Evans Syndrome ... Defects: Sickle cell anemia ... Peripheral Blood Smear
Chronic Lymphocytic Leukemia (CLL) - Summary
Overview: 
 • Most common leukemia in adults
 • Disorder of
• Peripheral smear ... 5) Symptoms of anemia ... ITP, AIHA, PRCA, autoimmune ... 6 months - Autoimmune ... hemeonc #diagnosis #management
Pancytopenia - Workup and Differential Diagnosis Algorithm
Consumption Disorders
 1. Autoimmune Mediated Pancytopenia
 2. Splenic Sequestration
Peripheral Destruction
Autoimmune Mediated ... Autoimmune condition ... HLH syndrome 5. ... Acquired Aplastic Anemia ... marrow failure syndrome