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Juvenile chronic myelocytic leukemia--report of 10 cases
1Department of Pediatrics, All India Institute Of Medical Sciences, New Delhi.
Insights
Juvenile chronic myelocytic leukemia (JCML) in children presents with fever, bleeding, and enlarged organs. This rare leukemia shows poor long-term survival, highlighting the need for new management strategies.
Area of Science:
- Pediatric Hematology
- Oncology
- Leukemia Research
Background:
- Juvenile chronic myelocytic leukemia (JCML) is a rare and aggressive hematologic malignancy affecting young children.
- Characterized by specific clinical and hematological features, JCML poses significant diagnostic and therapeutic challenges.
Purpose of the Study:
- To describe the clinical presentation, hematological findings, and outcomes of ten children diagnosed with JCML.
- To discuss potential new management strategies for this rare pediatric leukemia.
Main Methods:
- Retrospective analysis of ten pediatric JCML cases diagnosed between 1980 and 1991.
- Review of clinical data, peripheral blood counts, bone marrow aspirates, and fetal hemoglobin levels.
Main Results:
- The study included ten children, mostly under 4 years old, presenting with fever, bleeding, hepatosplenomegaly, and skin rash.
- Key hematological findings included anemia, thrombocytopenia, peripheral blood monocytosis, normoblastemia, and elevated fetal hemoglobin in most patients.
- Bone marrow examination revealed prominent erythroid proliferation and monocytosis, with no significant myeloid proliferation (M:E ratio 5:1).
Conclusions:
- JCML in children is characterized by distinct clinical and hematological features, often presenting in early childhood.
- The disease exhibits poor long-term survival, with a maximum survival of 18 months observed in this cohort.
- Further research into novel management approaches is crucial for improving outcomes in pediatric JCML.
Abstract:
Ten children (five boys and five girls) with juvenile chronic myelocytic leukemia were seen over a period of 12 years (1980-1991) at the All India Institute of Medical Sciences, New Delhi. With the exception of one who was aged 4.5 years, all children were below 4 years of age (mean age 20.4 months). The presenting features included fever, bleeding secondary to thrombocytopenia, marked hepatosplenomegaly, and skin rash. The striking hematological features were anemia, thrombocytopenia, peripheral blood monocytosis, and normoblastemia. There was no significant myeloid proliferation in the bone marrow aspirate (mean M:E = 5:1), while erythroid proliferation was prominent along with monocytosis (mean 11.2%). Fetal hemoglobin was raised in 8 of the 10 patients (mean 14.1%). Long-term survival was poor, with maximum survival being 18 months in one case. New modalities of management of this rare entity are discussed.