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J Pediatr Hematol Oncol ; 41(6): 490-493, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-29668539

RESUMO

Myeloproliferative neoplasms (MPNs) in childhood and adolescence are rare and seldom complicated by thrombosis. We describe 3 cases of thrombosis at unusual sites in young patients with MPNs. In the pediatric MPN population, unlike in adult MPNs, a clonal mutation is identifiable in only a minority of cases (22% to 26%). All 3 of these individuals had JAK2 mutations driving the disease process. A literature search identified 19 cases of MPN-associated thrombosis in children. Seventeen of the 19 children (89.5%) had a driver mutation. These cases suggest that identifiable driver mutations may confer an increased thrombotic risk in children with MPNs.


Assuntos
Janus Quinase 2/genética , Mutação , Transtornos Mieloproliferativos/complicações , Trombose/patologia , Adolescente , Criança , Feminino , Humanos , Masculino , Prognóstico , Fatores de Risco , Trombose/etiologia
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