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Rev. venez. oncol ; 23(3): 175-183, jul.-sept. 2011.
Article in Spanish | LILACS | ID: lil-618745

ABSTRACT

Precisar la importancia de realizar el estudio de inmunohistoquímica y su correlación con el diagnóstico anatomopatológico de rutina para el diagnóstico de los tumores sólidos malignos de células redondas en pacientes pediátricos. Se realizó un estudio transversal, descriptivo, retrospectivo no experimental. Se estudiaron 147 pacientes con diagnóstico de neoplasia de células redondas, de los cuales 96 cumplieron con criterios de inclusión. La mayor frecuencia de casos la obtuvo el linfoma No Hodgkin (20,8%), seguido del linfoma de Hodgkin (15,6%) y tumor de Wilms (17,7%). El grupo etario mayormente afectado fue el escolar (37,5%). El género predominante fue el masculino (60,4%). Las manifestaciones clínicas más frecuentes fueron masa palpable (76,04%), fiebre(44,79%), anemia (41,67%), dolor (41,30%) y pérdida de peso (33,33%). Se evidenció la mayor correlación diagnóstica en el tumor de Wilms (100%), seguido del linfoma No Hodgkin (80%) y el linfoma de Hodgkin (75%); la menor correlación la presentaron el sarcoma de Ewingy el neuroblastoma (41,7%, ambos). La correlación total resultó “considerable” según la fuerza de concordancia del coeficiente de Kappa (k: 0,601. P=0,000). Se requiere la integración del examen histopatológico de rutina como método diagnóstico de pesquisa y del estudio de inmunohistoquímica como método auxiliar diagnóstico, para determinar la histogénesis de las neoplasias, descartar diagnósticos diferenciales, realizar un diseño terapéutico apropiado y precisar el pronóstico.


To precise the state and the importance o fthe study of immunohistochemistry and its correlation with the routine pathological diagnosis to use in diagnosis of malignant solid tumors of round cells in pediatric patients. We was performed a transversal, descriptive and retrospective non-experimental study. We studied 147 patients diagnosed with round cell tumor, 96 of them weremet in inclusion criteria. The highest frequency of the cases was Non-Hodgkin lymphoma (20.8%), followed by the Hodgkin lymphoma (15.6%) and the Wilms tumor(17.7%). The age group most affected was the school(37.5%). The male gender was the predominant (60.4%).The most frequent clinical manifestations were a palpablemass (76.04%), the fever (44.79%), the anemia (41.67%),the pain (41.30%) and the weight loss (33.33%). Evidencedthe highest correlation in the diagnosis of Wilms tumor(100%), followed by Non-Hodgkin lymphoma (80%) and Hodgkin lymphoma (75%); showed the lowest correlation between the Ewing sarcoma and neuroblastoma (41.7%, both). The total correlation is “considerable” accordingto strength of agreement the Kappa coefficient (k: 0.601.P=0.000). It requires the integration of routine histopathological examination as diagnostic method of research and study of immunohistochemistry as an auxiliary diagnostic method to determine the histogenesis of neoplasm and exclude the differential diagnoses, make anappropriate therapeutic design and the determine prognosis of this group of patients.


Subject(s)
Humans , Male , Adolescent , Female , Infant , Child, Preschool , Child , Hodgkin Disease/pathology , Immunohistochemistry/methods , Lymphoma, Non-Hodgkin/pathology , Sarcoma, Ewing/pathology , Wilms Tumor/immunology , Wilms Tumor/drug therapy , Osteosarcoma , Histocytochemistry , Burkitt Lymphoma/pathology , Medulloblastoma/pathology
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