Nonsyndromic Juvenile Myelomonocytic Leukemia With PTPN11 Mutation in a 9-Year-old Girl.
J Pediatr Hematol Oncol
; 37(6): 486-7, 2015 Aug.
Article
em En
| MEDLINE
| ID: mdl-26181421
ABSTRACT
A 9.5-year-old girl with malaise, fever, massive hepatosplenomegaly, anemia, leukocytosis (37.9 × 10(9)/L), monocytosis (1.48 × 10(9)/L), and thrombocytopenia is presented. Hemoglobin F was increased (18%). Bone marrow erythroid/myeloid ratio was 40/1 with 7% myeloblast and 5% monocyte suggesting erythroleukemia or juvenile myelomonocytic leukemia (JMML). The patient had a fulminant course with respiratory compromise and died in 2 weeks before heterozygous somatic mutation in the PTPN11 gene was shown. JMML must be considered also in the patients older than 6 years. A cytopenic phase may precede JMML. Leucocytosis may be transient and there may be predominance of erythroid precursors in the bone marrow.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Leucemia Mielomonocítica Juvenil
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Proteína Tirosina Fosfatase não Receptora Tipo 11
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Mutação
Limite:
Child
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Female
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Humans
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article