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Congenital acute leukemia with initial indolent presentation--a case report.
Lydia Campos1, Nathalie Nadal, Pascale Flandrin-Gresta
1Laboratoire d'Hématologie, Hôpital Nord, Centre Hospitalier Universitaire, Saint Etienne, France. lydia.campos@chu-st-etienne.fr
Cytometry. Part B, Clinical Cytometry
|February 22, 2011
Summary
This case study details congenital acute leukemia in a newborn without Down syndrome, presenting an initially indolent course. Careful follow-up is crucial for diagnosing and managing this rare, aggressive childhood cancer.
Area of Science:
- Hematology
- Pediatric Oncology
- Genetics
Background:
- Congenital acute leukemia is a rare and aggressive malignancy in newborns.
- Transient myeloproliferative disorder in Down syndrome is a key differential diagnosis.
Observation:
- An apparently healthy newborn presented with normal peripheral blood counts but a blast population.
- The blast population and clinical condition remained stable during the first year of life.
Findings:
- Bone marrow analysis revealed 40% undifferentiated blasts with specific immunophenotype (low CD38, HLA-DR, CD33).
- Cytogenetic and molecular analyses were negative; karyotypes were normal.
- After one year, thrombocytopenia and increased blasts with the same phenotype were observed, alongside splenomegaly.
Implications:
- This is the first reported case of congenital acute leukemia with an indolent initial presentation in a neonate without Down syndrome.
- Highlights the importance of vigilant monitoring and diagnostic workup for congenital leukemia.
- Successful treatment involved cord blood cell transplantation after chemotherapy resistance.
