José Martes FritzDaniel Ruiz-MancoJavier Ospina2026-03-222026-03-22202410.37076/acorl.v52i2.756https://doi.org/10.37076/acorl.v52i2.756https://andeanlibrary.org/handle/123456789/75812Upper airway (UA) obstruction in pediatric patients may rarely require ruling out less common entities such as nasopharyngeal masses. Case Report: Exophytic papilloma in a 5-year-old patient with a challenging clinical diagnosis. The clinical, radiographic, and therapeutic characteristics of this lesion are discussed through a review of the current literature. Discussion: Severe UA obstruction in pediatric patients warrants a thorough endoscopic and radiologic study. Nasopharyngeal tumors are an uncommon cause of UA obstruction in children. Exophytic papilloma is a benign tumor of the nasal cavity, originating from the Schneiderian mucosa. It is known for its high recurrence rate following subtotal resection. There have been only a few case reports when originating from the nasopharynx. Conclusion: Sinonasal papilloma is a low-incidence tumor in children, but it still must be considered a rare cause of UA obstruction. Therefore, patients must be properly approached in order to perform appropriate diagnostic and therapeutic management.esMedicinearticle