Myelodysplastic Syndrome with t(5; 12)(q31;p 12-p 13) and Eosinophilia

Autor: P J Le Moine, Isabelle Pellier, Norbert Ifrah, Xavier Rialland, L Larget-Piet, O Blanchet, L Baranger, S François
Rok vydání: 1996
Předmět:
Zdroj: Journal of Pediatric Hematology/Oncology. 18:285-288
ISSN: 1077-4114
DOI: 10.1097/00043426-199608000-00010
Popis: Purpose Myelodysplastic syndrome with chromosomal translocation t(5;12)(q31-33;p12-13) and eosinophilia is a new entity recently described. Nine cases have been described in adults. We report the first pediatric case with a long follow-up (7 years). Patients and methods An 8-year-old girl presented with hyperleukocytosis, eosinophilia, and no clinical symptoms. Bone marrow investigations revealed myeloid hyperplasia and clonal chromosomal translocation t(5;12)(q31;p12-13). No treatment was prescribed, but 4 years later the white blood cell count reached 144 X 10(9)/L with immature myeloid cells and splenic enlargement. Hydroxyurea chemotherapy led to a hematopoietic remission. The patient is now 16 years old and well, >7 years after the initial diagnosis. Results The association: myelodysplastic syndrome, eosinophilia and translocation t(5;12)(q31-33;p12-13), seems to be a specific hematologic disorder. Study of cases previously reported in the literature shows the most important characteristics of this disease. However, there are still a number of questions about the disease itself (especially its treatment) and the significance of the chromosomal abnormalities. Conclusion This case seems to be the first report of the disease in a child and has had the longest follow-up. Other data should be collected to improve our knowledge of this hematopoietic disorder.
Databáze: OpenAIRE