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1.
Front Oncol ; 14: 1304263, 2024.
Article in English | MEDLINE | ID: mdl-38444682

ABSTRACT

Introduction: Acute leukemias (AL) are the main types of cancer in children worldwide. In Mexico, they represent one of the main causes of death in children under 20 years of age. Most of the studies on the incidence of AL in Mexico have been developed in the urban context of Greater Mexico City and no previous studies have been conducted in the central-south of the country through a population-based study. The aim of the present work was to identify the general and specific incidence rates of pediatric AL in three states of the south-central region of Mexico considered as some of the marginalized populations of Mexico (Puebla, Tlaxcala, and Oaxaca). Methods: A population-based study was conducted. Children aged less than 20 years, resident in these states, and newly diagnosed with AL in public/private hospitals during the period 2021-2022 were identified. Crude incidence rates (cIR), standardized incidence rates (ASIRw), and incidence rates by state subregions (ASIRsr) were calculated. Rates were calculated using the direct and indirect method and reported per million children under 20 years of age. In addition, specific rates were calculated by age group, sex, leukemia subtype, and immunophenotype. Results: A total of 388 cases with AL were registered. In the three states, the ASIRw for AL was 51.5 cases per million (0-14 years); in Puebla, it was 53.2, Tlaxcala 54.7, and Oaxaca de 47.7. In the age group between 0-19 years, the ASIRw were 44.3, 46.4, 48.2, and 49.6, in Puebla, Tlaxcala, and Oaxaca, respectively. B-cell acute lymphoblastic leukemia was the most common subtype across the three states. Conclusion: The incidence of childhood AL in the central-south region of Mexico is within the range of rates reported in other populations of Latin American origin. Two incidence peaks were identified for lymphoblastic and myeloid leukemias. In addition, differences in the incidence of the disease were observed among state subregions which could be attributed to social factors linked to the ethnic origin of the inhabitants. Nonetheless, this hypothesis requires further investigation.

2.
Bol. méd. Hosp. Infant. Méx ; 73(1): 26-30, Jan.-Feb. 2016. tab, graf
Article in English | LILACS | ID: biblio-839010

ABSTRACT

Abstract Introduction: Hemophagocytic syndrome, macrophage activation syndrome, reactive histiocytosis or hemophagocytic lymphohistiocytosis (HLH) represent a group of diseases whose common thread is reactive or neoplastic mononuclear phagocytic system cells and dendritic cell proliferation. Clinical case: We present a case of an HLH probably associated with Epstein-Barr virus (EBV) in a 4-year-old male patient treated with HLH-04 protocol. Viral etiology in HLH is well accepted. In this case, clinical picture of HLH was assumed secondary to EBV infection because IgM serology at the time of clinical presentation was the only positive factor in the viral panel. Conclusions: Diagnosis of HLH is the critical first step to successful treatment. The earlier it is identified, the less the tissue damage and reduced risk of multiple organ failure, which favors treatment response.


Resumen Introducción: El síndrome hemofagocítico, síndrome de activación de macrófagos, histiocitosis reactiva o linfohistiocitosis hemofagocítica (HLH) representan un grupo de enfermedades cuyo factor común es la proliferación reactiva o neoplásica de las células mononucleares fagocíticas y del sistema de células dendríticas. Caso clínico: Se presenta un caso de HLH sugestivo de tener una asociación con el virus del Epstein Barr (VEB) de un paciente masculino de 4 años de edad, tratado con el protocolo HLH-04. La etiología viral en HLH es reconocida. En este caso se asumió un cuadro de HLH secundario a una infección por VEB, ya que la serología de IgM en el momento de la presentación clínica fue la única positiva en el panel viral. Conclusiones: El diagnóstico de la HLH es el primer paso crítico para el éxito del tratamiento. Entre más temprano se identifique, existe menor daño tisular y menor riesgo de falla orgánica múltiple, lo que favorece la respuesta al tratamiento.

3.
Bol Med Hosp Infant Mex ; 73(1): 26-30, 2016.
Article in English | MEDLINE | ID: mdl-29421229

ABSTRACT

INTRODUCTION: Hemophagocytic syndrome, macrophage activation syndrome, reactive histiocytosis or hemophagocytic lymphohistiocytosis (HLH) represent a group of diseases whose common thread is reactive or neoplastic mononuclear phagocytic system cells and dendritic cell proliferation. CLINICAL CASE: We present a case of an HLH probably associated with Epstein-Barr virus (EBV) in a 4-year-old male patient treated with HLH-04 protocol. Viral etiology in HLH is well accepted. In this case, clinical picture of HLH was assumed secondary to EBV infection because IgM serology at the time of clinical presentation was the only positive factor in the viral panel. CONCLUSIONS: Diagnosis of HLH is the critical first step to successful treatment. The earlier it is identified, the less the tissue damage and reduced risk of multiple organ failure, which favors treatment response.

4.
Rev. cuba. med ; 37(4): 249-52, oct.-dic. 1998.
Article in English | CUMED | ID: cum-18961

ABSTRACT

Se presentó un paciente joven masculino que acudió a Consulta de Reumatología por presentar aumento de volumen articular asociado a úlceras en el escroto y aftas orales, se interpretó inicialmente como un síndrome de Reiter. En el curso del ingreso se constató la presencia de foliculitis en piel de miembros superiores, tórax y cara e iridoconjuntivitis bilateral, en los rayos X sólo se observó el aumento de partes blandas en la articulación comprometida, el resto de los exámenes complementarios sólo mostraron de interés una aceleración moderada de la velocidad de sedimentación globular. Se rediscutió nuevamente y se observó que presentaba los 4 criterios mayores para el diagnóstico de síndrome de Behcet completo(AU)


Subject(s)
INFORME DE CASO , Humans , Male , Adult , Behcet Syndrome
5.
Rev. cuba. med ; 37(4): 249-252, oct.-dic. 1998.
Article in Spanish | LILACS | ID: lil-299454

ABSTRACT

Se presentó un paciente joven masculino que acudió a Consulta de Reumatología por presentar aumento de volumen articular asociado a úlceras en el escroto y aftas orales, se interpretó inicialmente como un síndrome de Reiter. En el curso del ingreso se constató la presencia de foliculitis en piel de miembros superiores, tórax y cara e iridoconjuntivitis bilateral, en los rayos X sólo se observó el aumento de partes blandas en la articulación comprometida, el resto de los exámenes complementarios sólo mostraron de interés una aceleración moderada de la velocidad de sedimentación globular. Se rediscutió nuevamente y se observó que presentaba los 4 criterios mayores para el diagnóstico de síndrome de Behcet completo


Subject(s)
Humans , Male , Adult , Behcet Syndrome
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