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.

Backgrounds: Telemedicine has been effective in the management of various medical conditions, however, there is limited knowledge of its use in head and neck oncosurveillance. This is of importance currently while trying to mitigate the risk of transmission during the COVID-19 pandemic. This study aims to evaluate acceptability, satisfaction and perceptions of telemedicine technology among outpatients for head and neck oncologic surveillance. Methods: A cross-sectional study was conducted for head and neck surgical oncology patients who attended telemedicine consultations between March and October 2020 at the Peter MacCallum Cancer Centre. Data on demographic, socioeconomic and acceptability variables was collected, utilizing Likert scale questions. The primary outcome measures were patient satisfaction and perceptions, while the secondary outcome was access to technology. Results: One hundred and fifteen patients were invited to participate, and 100 were included in the final analysis; 95% of patient's had a positive experience with telemedicine appointments and were willing to have future telemedicine appointments. Regional and rural patients were more accepting of telemedicine consultations, citing savings in travel time and the minimal disruption to normal day-to-day activities. All participants had access to telecommunication devices, with 63% having three or more devices. Issues identified include a lack of physical examination by clinician for 65% of participants and the inability to selfexamine for 88% of participants. Conclusion:The study demonstrates patients' acceptance of telemedicine appointments as a component of outpatient surveillance for head and neck surgical oncology. This has benefits during the COVID-19 pandemic in addition to increasing accessibility for rural patients.

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.