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Erythrocyte Morphology on Peripheral Smear
Aka: Erythrocyte Morphology on Peripheral Smear, Erythrocyte Morphology, Red Blood Cell Morphology, Macrocyte, Microcyte, Spherocyte, Elliptocyte, Schistocyte, Acanthocyte, Spur Cell, Dacryocyte, Howell-Jolly, Target Cell, Basophilic Stippling, Sideroblast, Cabot's Ring Bodies
- See Also
- Red Blood Cell
- Peripheral Smear
- Bone Marrow Exam
- Background
- Variants below as seen on Peripheral Smear
- RBC Evaluation parameters
- RBC Color
- RBC Size
- RBC Shape
- RBC Contents
- Causes: Macrocytes
- See Macrocytic Anemia
- Reticulocytosis
- Liver disease
- Causes: Hypochromic Microcytes: Defective Hemoglobin synthesis
- See Microcytic Anemia
- Iron Deficiency Anemia
- Thalassemia
- Sickle Cell Anemia
- Hemoglobinopathy
- Causes: Spherocytes
- Hereditary Spherocytosis
- Autoimmune Hemolytic Anemia
- Acute Alcoholism
- Hemoglobin C Disease
- Following severe Burn Injury
- Hemolytic Transfusion Reactions
- Severe Hypophosphatemia
- Acute Oxidant Injury: Hexose Monophosphate Shunt Defect
- Clostridium Welchii Septicemia
- Causes: Elliptocytes (Oval Cells)
- Megaloblastic Anemia
- Myelofibrosis
- Refractory normoblastic Anemia
- Hereditary elliptocytosis
- Thalassemia
- Causes: Schistocytes (Fragmented Red Blood Cells)
- Microangiopathic Hemolytic Anemia
- Disseminated Intravascular Coagulation (DIC)
- Thrombotic Thrombocytopenic Purpura (TTP)
- Hemolytic Uremic Syndrome (HUS)
- Giant Hemangioma
- Metastatic Carcinoma
- Malignant Hypertension
- Eclampsia (Toxemia of Pregnancy)
- Vasculitis
- Macroangiopathic Hemolytic Anemia
- Prosthetic Heart Valve
- Causes: Dacryocytes (tear drop RBC)
- Extramedullary hemopoiesis
- Myelophthisic Anemia
- Severe Hemolytic Anemia
- Erythroleukemia
- Causes: Acanthocytes (Spur Cells)
- Abetalipoproteinemia
- Cirrhosis
- Hepatic necrosis
- Pyruvate kinase deficiency
- Uremia
- Infantile pyknocytosis
- Causes: Howell-Jolly Bodies
- Postsplenectomy
- Megaloblastic Anemia
- Causes: Basophilic Stippling (aggregated ribosomes)
- Lead Poisoning
- Arsenic Poisoning
- Thalassemia
- Sideroblastic Anemia
- Hemolytic Anemia
- Severe Anemia
- Unstable Hemoglobin
- Pyrimidine 5'-Nucleotidase Deficiency
- Causes: Heinz Body (Aggregates of denatured Hemoglobin)
- Oxidative Hemolytic Anemia (G6PD Deficiency)
- Causes: Target Cells
- Thalassemia
- Hemoglobin C
- Hemoglobin S (Sickle Cell Anemia)
- Liver Disease
- Causes: Sideroblasts
- See Sideroblastic Anemia
- Nucleated RBCs
- Iron laden mitochondria
- Causes: Cabot's Ring Bodies (Nuclear remnants)
- Lead Toxicity
- Pernicious Anemia
- Hemolytic Anemia
- Causes: Other findings on RBC exam
- Malaria
- BartonellaParasites
- References
- Ravel (1995) Clinical Laboratory Medicine, p. 14-16