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Reporte de caso: ALKOMA oculto o emergente en una paciente no fumadora con cáncer de pulmón de célula no pequeña metastásico

Case report: occult versus emergent ALKOMA in a never-smoker female patient with advanced non-small cell lung cancer



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Rojas-Puentes LL, Cardona AF, Zuluaga J, Rodriguez J, Gonzalez A, Leguizamon S. Reporte de caso: ALKOMA oculto o emergente en una paciente no fumadora con cáncer de pulmón de célula no pequeña metastásico. Rev. colomb. hematol. oncol. [Internet]. 2026 Feb. 17 [cited 2026 Feb. 17];13(1-Supl):506-18. https://doi.org/10.51643/22562915.850

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Rojas-Puentes LL, Cardona AF, Zuluaga J, Rodriguez J, Gonzalez A, Leguizamon S. Reporte de caso: ALKOMA oculto o emergente en una paciente no fumadora con cáncer de pulmón de célula no pequeña metastásico. Rev. colomb. hematol. oncol. [Internet]. 2026 Feb. 17 [cited 2026 Feb. 17];13(1-Supl):506-18. https://doi.org/10.51643/22562915.850

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Leonardo Rojas-Puentes,

Médico y Cirujano. Especialista en Medicina Interna. Especialista en Oncología Médica (Clínica). Magister en Epidemiología Clínica.


Andrés F. Cardona,

Jefe de investigación, ciencia y educación del Centro de Investigación y Tratamiento del Cáncer Luis Carlos Sarmiento Angulo. Médico y Especialista en Epidemiología de la Universidad del Rosario (Bogotá, Colombia). Estudios de posgrado en Medicina Interna (Universidad Javeriana, Bogotá, Colombia), Oncología Clínica (Universidad El Bosque, Bogotá, Colombia), epidemiología relacionada con el cáncer orientada al desarrollo de ensayos clínicos (Universidades de Barcelona a Sevilla, España) y epidemiología clínica (Universidad de Sevilla, España). Doctorado en Genómica Tumoral con énfasis en investigación traslacional (Universidad Autónoma de Barcelona, España).


Jairo Zuluaga,

Médico y Cirujano Internista. Especialista en Oncología Clínica.


Jorge Rodríguez,

Médico y Patólogo egresado de la Universidad Javeriana de Bogotá. Entrenamiento avanzado en patología pulmonar en el Hospital Universitari Vall d’Hebron de Barcelona. Becario Zeiler en patología pulmonar de la Clínica Mayo. Máster en Administración de Negocios. Actualmente es Director Nacional de los Laboratorios de Patología de Keralty y miembro de la Unidad Funcional de Patología Torácica del Centro de Tratamiento e Investigación sobre Cáncer (CTIC) en Bogotá.


Alejandro González,

Médico y Cirujano. Especialista en Oncología Radioterápica. Master en Neoplasias de la Cavidad Torácica. Magister en Epidemiologia.


Introducción: el cáncer de pulmón es una enfermedad genómicamente diversa y prevalente en nuestro medio. Los rearreglos de ALK se presentan en una minoría de los casos de cáncer de pulmón de célula no pequeña, pero seleccionan a una población de pacientes altamente sensible a inhibidores específicos y con una proporción igualmente alta de sobrevivientes a largo plazo.

Caso clínico: en este reporte se describe el caso de una mujer nunca fumadora que debuta con un adenocarcinoma de pulmón metastásico y una evaluación inicial de ALK negativa por inmunohistoquímica (D5F3). La paciente recibió tratamiento con quimioinmunoterapia seguido de radioterapia corporal ablativa estereotáctica, logrando un importante beneficio clínico. Tras la progresión, se detecta en tejido una fusión EML4-ALK. Al momento de la publicación, la condición de la paciente permanece favorable y mantiene una respuesta parcial tras el inicio de terapia con alectinib más ramucirumab.

Conclusión: la identificación de los mecanismos de resistencia asociados a la progresión permite identificar dianas terapéuticas y mejorar los desenlaces oncológicos de los pacientes. 


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