Abstract
Introduction: Antrochoanal polyps are more prevalent in children than adults. Unilateral nasal obstruction and rhinorrhea are usually the features of the unilateral antrochoanal polyps. Bilateral nasal obstruction is also a feature of antrochoanal polyp if it is large and obstruct both choana. Giant antrochoanal polyp is rarely reported in the literature and as a case reports. Case Report: We reported a further case of giant left antrochoanal polyp in a 6-years-old boy presented with bilateral nasal obstruction, nasal and postnasal mucopurulent discharge, hypo-nasal speech, mouth breathing, snoring, and obstructive sleep apnea syndrome. These features are mostly consistent mostly with the diagnosis of the adenoids. Physical examination revealed a mass seen in the oropharynx behind the uvula. Further examination by nasal endoscopy, computerized tomography, and histopathological evaluation of the excised polyp have confirmed the diagnosis of an antrochoanal polyp. Conclusion: Although this entity is rarely seen in daily clinical practice, great care is needed to catch the diagnosis for early treatment to avoid unwanted complications.