Leucemia Mieloide Crónica Juvenil. A propósito de un caso
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Rivas Mejías, Juan José
Castro Artavia, Esteban
Vindas Angulo, Luisa Alejandra
Solano Vargas, Mariela
Calvo Alpízar, Lilliana María
Sánchez Barahona, María Fernanda
Monge Zúñiga, Claudio
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Abstract
La leucemia Mieloide Crónica (LMC) es una neoplasia mieloproliferativa crónica,
caracterizada por un gen de fusión t(9,22). El curso normal de la enfermedad consta de 3
fases: crónica, acelerada y blástica. En su gran mayoría los pacientes son diagnosticados en
fase crónica y por un hallazgo incidental. Es común en pacientes mayores de 60 años, y
poco frecuentes en niños y adolescentes, de ahí la importancia del reporte de este caso.
Caso clínico: Paciente diagnosticado con LMC que progresó a fase acelerada, debido a falla
terapéutica a primera línea de tratamiento con imatibinib y segunda línea con nilotinib.
Dicha falla se justifica por poca adherencia al tratamiento. La importancia de este reporte
recae en la baja incidencia de casos de LMC juvenil y las diferencias reportadas en la
literatura en cuanto a una progresión clínica más agresiva.
Chronic myeloid leukemia (CML) is a chronic myeloproliferative neoplasm, characterized by a fusion gene t(9,22). The normal course of the disease consists in 3 phases: chronic, accelerated and blastic. The vast majority of patients are diagnosed in the chronic phase by an incidental finding. It is common in patients older than 60 years, and infrequent in children and adolescents, hence the importance of this case report. Clinical case: Patient with a diagnosis of CML that progresses to an accelerated phase, due to therapeutic failure in the first line of treatment with imatibinib and second line with nilotinib. This failure is justified by poor adherence to treatment. This report is important due to the low incidence of cases of juvenile CML and the differences reported in the literature, since it has a more aggressive clinical progression than in adults.
Chronic myeloid leukemia (CML) is a chronic myeloproliferative neoplasm, characterized by a fusion gene t(9,22). The normal course of the disease consists in 3 phases: chronic, accelerated and blastic. The vast majority of patients are diagnosed in the chronic phase by an incidental finding. It is common in patients older than 60 years, and infrequent in children and adolescents, hence the importance of this case report. Clinical case: Patient with a diagnosis of CML that progresses to an accelerated phase, due to therapeutic failure in the first line of treatment with imatibinib and second line with nilotinib. This failure is justified by poor adherence to treatment. This report is important due to the low incidence of cases of juvenile CML and the differences reported in the literature, since it has a more aggressive clinical progression than in adults.
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