54 results
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
- Differential ... Megakaryopoiesis • Aplastic Anemia ... ITP • SLE • CLL ... Non-lmmune: • HELLP Syndrome ... Algorithm #Causes #Hematology
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Thrombocytosis - Differential ... : • Acute or Chronic ... following EtOH induced thrombocytopenia ... Iron deficiency anemia ... Algorithm #Causes #Hematology
Blood Disorders - Markers and Differential Diagnosis Algorithm 
Acute
 • Myloid (AML) - CD13, CD33, CD34,
- CD7, CD3 Chronic ... Pelger-Huet, Macrocytic anemia ... • Lymphoid (CLL ... Amy Chung, MD, MSc ... Blood #Disorders #hematology
Red Blood Cell (RBC) Morphology Atlas
 • Microcytic - Iron-deficiency anemia, Thalassemia, Sideroblastic anemia, Lead poisoning
Myelodysplastic syndrome ... Hemolytic uremic syndrome ... Thrombotic idiopathic thrombocytopenia ... key #diagnosis #differential ... #hematology
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
Thrombocytosis - Differential ... malignancies • Anemia ... Myelodysplastic syndrome ... myeloid leukemia (CML ... Diagnosis #Causes #hematology
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
→ Refer to hematology ... hemolysis, deficiency anemia ... Kawasaki, Nephrotic syndrome ... • Infections: Chronic ... Diagnosis #Algorithm #hematology
Leukemias Overview: ALL, CML, AML, APML, CLL

Acute leukemias > 20% blasts in the peripheral blood smear
develop leukostasis syndrome ... - infiltrates (anemia ... , thrombocytopenia ... • Tumor lysis syndrome ... #Leukemia #Hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
microangiopathy: Thrombotic thrombocytopenic ... ) (e.g. lupus, CLL ... Extravascular #Causes #differential ... #diagnosis #hematology ... #anemia
Diagnostic Framework for Anemia (Morphological Approach - MCV)
Low MCV - <80fL - "Microcytic"
 • Iron deficiency
of chronic inflammation ... of chronic kidney ... Myelodysplastic syndrome ... morphologic #mcv #differential ... diagnosis #causes #hematology
Chronic Lymphocytic Leukemia - Summary

Cancer affecting lymphocytes/Mature B cell neoplasm
 • Lymphocytes accumulate in large numbers
Chronic Lymphocytic ... Orange or Hep C Clinical ... • Neutropenia, anemia ... , thrombocytopenia ... workup #oncology #hematology