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Características clínico-patológicas y factores de riesgo para los melanomas múltiples primarios
Cristina R Ferrone1, Leah Ben Porat, Katherine S Panageas
1Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA.
JAMA
|October 6, 2005
Resumen
Los pacientes con antecedentes de melanoma y factores de riesgo específicos como antecedentes familiares o nevos displásicos tienen una mayor incidencia de melanomas múltiples primarios (MPM). La detección temprana a través de un cribado intensivo es crucial para estos individuos de alto riesgo.
Área de la Ciencia:
- Dermatología Dermatología dermatología.
- Oncología Oncología.
- Genética La genética.
Sus antecedentes:
- La incidencia de melanomas múltiples primarios (MPM) varía, y los estudios existentes carecen de claridad sobre los factores de riesgo específicos.
- La comprensión de estos factores es crucial para la gestión eficaz del paciente y la estratificación del riesgo.
Objetivo del estudio:
- Determinar la incidencia de melanomas múltiples primarios (MPM) utilizando una base de datos prospectiva de una sola institución.
- Para identificar las características clínicas y patológicas y los factores de riesgo específicos asociados con MPM.
- Para analizar el riesgo de desarrollar melanomas primarios posteriores.
Principales métodos:
- Revisión prospectiva de una base de datos multidisciplinaria en el Centro de Cáncer Memorial Sloan-Kettering.
- Análisis de 4484 pacientes diagnosticados con su primer melanoma primario entre 1996 y 2002.
- Identificación y evaluación de los factores de riesgo, incluidos los antecedentes familiares y los nevos displásicos, para el desarrollo de MPM.
Principales resultados:
- La incidencia de MPM fue del 8,6%, con un promedio de 2,3 melanomas por paciente.
- Los pacientes con antecedentes familiares positivos (21%) o nevos displásicos (38%) mostraron una incidencia significativamente mayor de MPM en comparación con los pacientes con melanoma primario único (SPM) (12% y 18%, respectivamente).
- El riesgo a 5 años de un segundo melanoma primario fue del 11,4% en general, aumentando al 19,1% para aquellos con antecedentes familiares positivos y al 23,7% para aquellos con nevi displásicos.
Conclusiones:
- Los antecedentes familiares positivos y/o la presencia de nevos displásicos son factores de riesgo significativos para el desarrollo de melanomas múltiples primarios.
- Los pacientes identificados con estos factores de riesgo requieren una exploración dermatológica intensiva.
- Las pruebas genéticas deben considerarse para las personas con mayor riesgo de melanomas múltiples primarios.
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