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Published on: November 3, 2018
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Myelodysplastic syndrome with pseudoreticulocytosis
Summary
This study reports a rare case of myelodysplastic syndrome (MDS) presenting with pseudoreticulocytosis, a condition mimicking hemolytic anemia due to prolonged reticulocyte maturation. This unusual finding highlights a unique presentation of MDS.
Area of Science:
- Hematology
- Oncology
- Internal Medicine
Background:
- Myelodysplastic syndromes (MDS) are a group of clonal hematopoietic stem cell disorders.
- Refractory anemia is a common subtype of MDS.
- Reticulocytosis typically indicates increased red blood cell production, often seen in hemolytic anemia or blood loss.
Purpose of the Study:
- To report an unusual case of myelodysplastic syndrome (MDS) with refractory anemia.
- To describe the phenomenon of pseudoreticulocytosis in the context of MDS.
- To highlight an atypical presentation that mimics hemolytic anemia.
Main Methods:
- Case report of a patient with MDS and refractory anemia.
- Performed erythrocyte survival tests to assess reticulocyte lifespan.
- Analyzed reticulocyte maturation patterns.
Main Results:
- The patient exhibited marked reticulocytosis without evidence of hemolytic anemia or blood loss.
- Erythrocyte survival tests revealed over 50% of reticulocytes remained on day seven.
- This indicated a prolonged reticulocyte maturation time, defining pseudoreticulocytosis.
Conclusions:
- Pseudoreticulocytosis is a rare but significant finding in myelodysplastic syndrome.
- This phenomenon can be mistaken for hemolytic anemia, necessitating careful diagnostic evaluation.
- This case adds to the limited reports of pseudoreticulocytosis in MDS, emphasizing its unusual presentation.

