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What is the meaning of poikilocytosis?

Published in Hematology 3 mins read

Poikilocytosis refers to the presence of abnormally shaped red blood cells in the blood.

Understanding Poikilocytosis

The term "poikilocytosis" comes from the Greek words "poikilos" meaning varied or irregular, and "kytos" meaning cell. Therefore, it directly describes the variation in the shape of red blood cells, which are normally uniform and biconcave.

Key Aspects of Poikilocytosis

  • Definition: The presence of abnormally shaped red blood cells.
  • Significance: It can indicate underlying health issues, most commonly related to anemia or other blood disorders. According to the reference, poikilocytosis "may be a sign of anemia, a condition that may make you feel tired or weak."
  • Causes: A variety of factors, including dietary deficiencies, inherited conditions, and other medical conditions, can cause poikilocytosis. The reference mentions that "sometimes, diet and lifestyle cause poikilocytosis. Other times, it results from an inherited condition."
  • Diagnosis: Typically diagnosed through a peripheral blood smear, where a blood sample is examined under a microscope.
  • Treatment: Treatment focuses on addressing the underlying cause of the abnormally shaped red blood cells. As stated in the reference, "Treatment depends on what's causing poikilocytosis."

Examples of Abnormal Red Blood Cell Shapes

Different shapes of red blood cells are associated with different underlying conditions. Some examples include:

Cell Shape Description Possible Associated Conditions
Spherocytes Small, round, and lack central pallor Hereditary spherocytosis, autoimmune hemolytic anemia
Elliptocytes Oval or elongated red blood cells Hereditary elliptocytosis, iron deficiency anemia
Target cells Red blood cells with a dark center surrounded by a pale ring and then a dark outer ring Liver disease, thalassemia, hemoglobinopathies
Schistocytes Fragmented red blood cells Microangiopathic hemolytic anemia (MAHA)
Sickle cells Crescent-shaped red blood cells Sickle cell anemia

Implications and Management

Poikilocytosis itself is not a disease but rather a sign of an underlying condition. Addressing the underlying cause is crucial.

  • Further Investigation: Once poikilocytosis is detected, further tests are needed to identify the specific cause.
  • Treatment Strategies: These may involve dietary changes, medication, or other interventions based on the diagnosed condition. For example, if iron deficiency is the cause, iron supplementation would be recommended.
  • Lifestyle Adjustments: In some cases, lifestyle and dietary changes may help manage poikilocytosis.

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