The sellar xanthogranuloma is a rare lesion of the sellar–parasellar region difficult to differentiate from other tumors such as craniopharyngiomas or Rathke's cleft cyst in the preoperative evaluation. As they are recently recognized as a separate entity and the few number of reports in the literature, its etiology is unknown and its impact remains uncertain. This article will describe the first three cases reported in Latin America, identified in one of them an imaging feature that may be helpful to elucidate an imaging growth pattern. Current evidence will be described regarding to the clinicopathological features, imaging diagnosis, and etiology origin theories.
El xantogranuloma corresponde a un tumor infrecuente que comparte diversas características con otros tumores de la región selar. Dada la escasa cantidad de casos reportados, la experiencia en el reconocimiento y abordaje de este tumor es limitada. Se presenta el marco teórico de la patología, buscando destacar sus características principales, señalar los hallazgos clínicos e imagenológicos que permiten sospechar el diagnóstico, describir el pronóstico tras la cirugía, y establecer sus diferencias frente a otros tumores de la región selar. Además se describe la experiencia quirúrgica desarrollada por los autores en tres casos de xantogranuloma de la región selar tratados en el Hospital Regional de Concepción entre los años 2013 y 2015.
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