47 results
Differential diagnosis of schistocytes / fragmentation hemolysis:
 • Thrombotic microangiopathies (TMA)
    - TTP
Differential diagnosis ... organ or stem cell ... crisis • Severe B12 ... #schistocytes #differential ... #diagnosis #hematology
Hemolysis - Diagnostic Algorithm and Causes

Increased red cell production: 
 • Increased Reticulocytosis/polychromasia 
 • Erythroid
Hemolysis - Diagnostic ... Increased red cell ... #Algorithm #Differential ... #Causes #Workup ... #Hematology #Diagnosis
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
) (e.g. lupus, CLL ... cold agglutin disease ... disease, thalassemias ... Extravascular #Causes #differential ... #diagnosis #hematology
Pancytopenia - Differential Diagnosis

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

Cancer:
• Leukemia
• Lymphoma

Inflammatory
Congenital Diseases ... telomeropathy Cancer ... Antibody-mediated hemolysis ... consumption • Vitamin B12 ... #Diagnosis #Hematology
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
→ Refer to hematology ... for workup, including ... blood loss, Acute hemolysis ... Rebound effect from treatment ... Diagnosis #Algorithm #hematology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
- Differential ... Consider sickle cell ... #Anemia #Differential ... Diagnosis #Algorithm #workup ... #hematology #testing
Approach to Hypoproliferative Macrocytic Anemia

 • 812, Folate Deficiency
 • MDS+
 • Hypothyroid
 • Liver Disease
Macrocytic Anemia • 812 ... Hypothyroid • Liver Disease ... Macrocytic #Anemia #differential ... diagnosis #algorithm #hematology ... #workup
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
Macrocytic RBC: Vitamin B12 ... Microangiopathic Hemolytic ... Cold autoimmune hemolytic ... RBC #Morphology #differential ... #diagnosis #hematology
Pancytopenia - Differential Diagnosis Algorithm
 • 12-13 g/dL,
 • ANC < 1800/uL,
 • platelet < 150,000/uL

Initial
Algorithm • 12 ... /uL Initial Workup ... ↑ Destruction (hemolysis ... Diagnosis #Algorithm #hematology ... #workup
Anemia - Underproduction Diagnostic Algorithm
 - Iron deficiency anemia
 - Anemia of chronic inflammation
 - Anemia
chronic kidney disease ... - Vitamin B12 ... Underproduction #Algorithm #hematology ... #diagnosis #differential ... #workup