199 results
Red Blood Cell (RBC) Morphology Atlas
 • Microcytic - Iron-deficiency anemia, Thalassemia, Sideroblastic anemia, Lead poisoning
anemia, Thalassemia ... Myelodysplastic syndrome ... spherocytosis, Hemolytic ... Schistocytes - Hemolytic ... uremic syndrome
Differential diagnosis of schistocytes / fragmentation hemolysis:
 • Thrombotic microangiopathies (TMA)
    - TTP
fragmentation hemolysis ... syndrome (ST-HUS ... • Severe B12 deficiency ... anemia" • HELLP ... syndrome • Catastrophic
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
anemia): ... ) - HELLP syndrome ... uremic syndrome ... G6PD deficiency) ... diagnosis #hematology #anemia
Causes of Anemia in Cirrhosis - Differential Diagnosis Framework
LOW RETIC INDEX - ↓ PRODUCTION
 • Vitamin
Causes of Anemia ... Destruction: Zieve's syndrome ... , Spur cell anemia ... anemia, Hemolysis ... Kumfer @AnnKumfer #Anemia
Elevated Lactate Dehydrogenase (LDH) - Differential Diagnosis Framework

LDH is a cytoplasmic enzyme present in tissues throughout
Anemias: - Spherocytosis ... anemia, PNH, immune ... - Pernicious anemia ... • Tumor lysis syndrome ... polyangiitis • Behçet's syndrome
Iron Deficiency Anemia - Differential Diagnosis Algorithm

Labs: Ferritin, iron, transferrin, TIBC, TSAT, sTfR

 • Blood loss:
Iron Deficiency ... Anemia - Differential ... extravascular) hemolysis ... Gastrectomy, WHDA syndrome ... #Anemia #Differential
Pancytopenia - Differential Diagnosis

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

Cancer:
• Leukemia
• Lymphoma

Inflammatory
Diseases: • GATA2 deficiency ... • Fanconi’s anemia ... Wiskott-Aldrich syndrome ... Antibody-mediated hemolysis ... B12 • Folate deficiency
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
malignancies • Anemia ... specifically: iron deficiency ... , hemolysis, hemorrhage ... Myelodysplastic syndrome
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
blood loss, Acute hemolysis ... , deficiency anemia ... Kawasaki, Nephrotic syndrome
Hemolytic Anemias - Differential Diagnosis Algorithm

Signs of anemia and hemolysis:
 • ↓ Haptoglobin
 • ↑ LDH
Hemolytic Anemias ... Algorithm Signs of anemia ... Anemias (AIHAs) ... Anemias (AHAs) ... #Anemias #Differential