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PEComa maligno retroperitoneal: reporte de caso
Abigail McKenzie1, Racha Cherradi1, Maleeha Ahmad1
1College of Medicine, Texas A&M University, College Station, Texas, USA.
Proceedings (Baylor University. Medical Center)
|February 20, 2026
Resumen
Los tumores de células epitelioides perivasculares (PEComas) son neoplasias mesenquimales raras. Este caso destaca un PEComa retroperitoneal maligno con metástasis, enfatizando las consideraciones diagnósticas y de tratamiento.
Área de la Ciencia:
- Oncología
- Patología
Sus antecedentes:
- Los tumores de células epitelioides perivasculares (PEComas) son neoplasias mesenquimales raras caracterizadas por un fenotipo inmunoquímico miomelanocítico único.
- Estos tumores afectan predominantemente a adultos, con predilección por las mujeres, y pueden surgir en diversas localizaciones anatómicas.
- Si bien la mayoría de los PEComas son benignos con buen pronóstico, las variantes malignas pueden comportarse agresivamente.
Objetivo del estudio:
- Presentar una viñeta clínica de un PEComa maligno.
- Ilustrar los desafíos diagnósticos y las implicaciones del tratamiento del PEComa metastásico.
Principales métodos:
- Reporte de caso de una mujer de 65 años con PEComa maligno retroperitoneal.
- Revisión de la presentación clínica, hallazgos diagnósticos y consideraciones de tratamiento.
Principales resultados:
- El paciente presentó un PEComa maligno en el retroperitoneo.
- Se desarrolló enfermedad metastásica, subrayando el potencial agresivo del PEComa maligno.
- El diagnóstico preciso es crucial para un manejo apropiado.
Conclusiones:
- Los PEComas malignos, aunque poco comunes, pueden presentarse agresivamente con potencial metastásico.
- Este caso enfatiza la importancia de reconocer el PEComa y considerar su potencial maligno en la planificación del diagnóstico y tratamiento.
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