35 results
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
Red Blood Cell ( ... Chemotherapy (e.g ... disease, McLeod blood ... differential #diagnosis #hematology ... #microscopy #atlas
Causes of Anemia with Normal Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased WBCs
 - Decreased/NormaI
Causes of Anemia ... • Secondary (e.g ... Microangiopathic Hemolytic Anemias ... #Normocytic #Anemia ... Algorithm #Causes #Hematology
Peripheral Blood Smear Analysis
Hypochromia
Megaloblastic Anemia
Schistocytes: Microangiopathic hemolytic anemia (e.g. DIC, TTP, HUS)
Microspherocytes: Autoimmune hemolytic anemia
Sickled red
Peripheral Blood ... (e.g. ... #Peripheral #Blood ... Smear #Analysis #hematology ... #microscopy #interpretation
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Algorithm Normal Blood ... Neutrophils - Low RBC ... Increased Requirement (e.g ... Myelodysplastic Syndromes ... Algorithm #Causes #Hematology
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
transform into a RBC ... infiltration (e.g ... Marrow suppression (e.g ... defects (e.g. sickle ... Production #Index #hematology
Causes of Anemia with Low Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased Heme Synthesis or
Causes of Anemia ... Iron Deficiency (Eg ... Causes: Chronic Blood ... Other • e.g ... Algorithm #Causes #Hematology
Anemia Diagnostic Algorithm

Mean corpuscular (cell) volume (MCV): Average RBC size. Under 80 = microcytic. Between 80-95
Anemia Diagnostic ... in peripheral blood ... High in acute blood ... of substrate (e.g ... Diagnosis #Workup #Hematology
Red Blood Cell (RBC) Morphology Atlas
 • Microcytic - Iron-deficiency anemia, Thalassemia, Sideroblastic anemia, Lead poisoning
Red Blood Cell ( ... RBC) Morphology ... Myelodysplastic syndrome ... coagulopathy (DIC) #RBC ... #differential #hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
(usually IgG) (e.g ... (usually IgM) (e.g ... • Intrinsic RBC ... deficiencies (e.g ... differential #diagnosis #hematology
Hemolysis - Differential Diagnosis Framework

1) Environment
  - Fragmentation
  - MAHA: TTP, HUS, DIC, HELLP
2) External (RBC ... Drug-associated, PCH, Evans Syndrome ... Defects: Sickle cell anemia ... - Peripheral Blood ... Differential #Diagnosis #hematology