Acute myelofibrosis in children: report on two cases
J S Maj1, K Rosłan, B Fic-Sikorska
1Department of Laboratory Diagnostic and Clinical Immunology, Medical Academy, Warsaw.
Acta Haematologica Polonica
|January 1, 1996
Summary
Childhood myelofibrosis presents uniquely, even when linked to acute megakaryoblastic leukemia (M7). Two pediatric cases highlight varied clinical and histopathological presentations of this rare blood disorder.
Area of Science:
- Hematology
- Pediatric Oncology
- Pathology
Background:
- Myelofibrosis is a rare bone marrow disorder.
- Acute megakaryoblastic leukemia (M7) is a subtype of acute myeloid leukemia.
- Understanding pediatric myelofibrosis is crucial for diagnosis and treatment.
Observation:
- Two pediatric cases of acutely developing myelofibrosis associated with acute megakaryoblastic leukemia (M7) are presented.
- Case 1: A 34-month-old girl with hypocellular marrow myelofibrosis and M7, confirmed by CD42 and CD61 antibodies.
- Case 2: A 5-year-old girl with Ph1(+) chronic myeloid leukemia transforming to M7, showing fibrosed, hypercellular marrow with dysplastic megakaryocytes.
Findings:
- Both cases lacked marrow aspirate, necessitating bone marrow histology for diagnosis.
- Despite FAB classification, the two cases exhibited distinct clinical and histopathological features.
- Neither child had Down's syndrome, a common comorbidity in some pediatric leukemias.
Implications:
- These cases underscore the heterogeneity of pediatric myelofibrosis and M7.
- Histopathological evaluation is critical when marrow aspirates are unobtainable.
- Further research is needed to elucidate the varied presentations and optimize management strategies for childhood myelofibrosis and M7.
