:- Primary adenocarcinomas of the sinuses and nasal pits are rare tumors, accounting for 13% of nasosinusian carcinomas. We report in this work the observation of a young patient with no notable pathological history who presented one year prior to his consultation a history of right unilateral nasal obstruction associated with a history of low homolateral abundance epistaxis. Clinical and endoscopic examination objectified a red polypoid formation occupying the majority of the right nasal cavity; on data from nasal imaging and endoscopy; the tumor is classified as T1N0M0; the patient benefited from an endoscopic first with a homolateral middle meatotomy; the anatomopathological study objectified low-grade adenocarcinoma. Post-operative surveillance based on nasal endoscopy and imaging did not show signs of recurrence.