RESUMO
Congenital leukemia is a rare disorder that usually presents with extramedullary infiltrates and myeloid phenotype in 80% cases. The authors present 4 cases of congenital leukemia diagnosed over 11 year period, three of which were of acute lymphoid leukemia and one was of biphenotypic leukemia.
Assuntos
Feminino , Humanos , Imunofenotipagem , Lactente , Recém-Nascido , Leucemia Linfoide/congênito , Leucemia Mieloide Aguda/congênito , Masculino , Estudos RetrospectivosRESUMO
Six cases of congenital leukemia were encountered in pediatric autopsies carried out over a period of 7 years. The postmortem findings of these cases were analysed and presented along with antemortem peripheral and bone marrow smear. All the cases were diagnosed as acute myeloid leukemia. Gross changes were observed in lungs, liver, spleen and kidneys. Histological abnormalities were detected in these organs as well as the heart, pancreas and intestine. Lymph node follicles were well preserved in all. The thymus showed a normal lobular pattern with interstitial infiltrate. Bone marrow showed myeloid blast cells with depletion of the erythroid and megakaryocytic cells.
Assuntos
Autopsia , Feminino , Humanos , Recém-Nascido , Rim/patologia , Leucemia Mieloide Aguda/congênito , Fígado/patologia , Masculino , Baço/patologiaRESUMO
Se describe a un paciente de 15 años que fué hospitalizado en el Instituto Nacional de Pediatría (INP) por presentar un cuadro clínico sugestivo de un padecimiento mieloproliferativo. Los estudios de médula ósea y sangre periférica no fueron confirmativos, pero el paciente evolucionó hacia sangrados masivos, daño neurológico, falleciendo al noveno día de internamiento. El estudio cromosómico en médula ósea reveló alteraciones complejas que comprometían a los cromosomas 1, 9, 7 y 17 y que sugerían una leucemia aguda no linfoblástica con mal pronóstico. El estudio postmortem corroboró la invasión a múltiples órganos de células inmaduras de la serie blanca, sugestiva de leucemia aguda de la serie mieloide.