Endoscopic Management of Large Antrochoanal Polyp in a Pediatric Patient: A Case Report

Abstract

Background
Benign solitary sinonasal lesions called antrochoanal polyps (ACPs) start in the mucosa of the maxillary sinus then propagate into the choana. Although they are fairly uncommon in children, they collectively make up a substantial proportion of nasal polyps in the pediatric age group. Considering its efficacy and low recurrence rate, endoscopic sinus surgery is now regarded as the preferred course of treatment.

Case Presentation
For eight months, a 8-year-old boy had intermittent nasal discharge, mouth breathing, snoring, and developing unilateral nasal blockage. A massive polypoidal tumor emerging from the left nasal cavity and expanding into the choana was discovered by nasal endoscopy. An antrochoanal polyp was identified by computed tomography (CT) of the paranasal sinuses as a soft tissue mass that originated in the left maxillary sinus and extended down the ostium into the nasal cavity and nasopharynx. The polyp, including its antral component, was completely removed from the patient during endoscopic sinus surgery. An inflammatory antrochoanal polyp was verified by histopathological analysis. During the six-month follow-up period, no recurrence was noted, and the postoperative period was uncomplicated.

Conclusion
Endoscopic excision of antrochoanal polyps is a safe, minimally invasive, and successful therapeutic option for pediatric patients, offering great visualization, full elimination, and low recurrence.