A t (9;11) translocation in childhood acute mixed leukemia
Palavras-chave:
Leukemia, karyotipe, Epipodophillotoxin derivativeResumo
Apresentamos o caso de uma criança com leucemia aguda classificada morfologicamente como LLA (leucemia linfóide aguda) FAB L1 (PAS e peroxidase negativos) que alcançou remissão com protocolo para LLA (GBTLI). Após cinco meses fora de terapia desenvolveu uma leucemia mista (CD10, CD19, CD13 e CD33 positivos) com translocação t(9; 11)(p21;q23). Como, infelizmente, os estudos de citogenética e imunofenotipagem não foram realizados ao diagnóstico, pode-se considerar duas possibilidades para a recaída: uma leucemia mista secundária com alteração cromossômica clonal ou uma leucemia mista desde o início.
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