Case definition: Adenoidal enlargement is a common paediatric problem. The adenoid vegetation most usually involutes between the ages of 10-12 years, and rarely persists into adult life. Objective: To highlight the significance of adenoid vegetation as a differential diagnosis of nasal obstruction in adults. Case Report: This paper presents a case of persistent symptomatic obstructive adenoid vegetation in a 23 year old Nigerian adult female student. Conclusion: Although adenoidal tissue normally undergoes involution during late childhood period, it may persist into adult life and present as a cause of nasal obstruction.

Keywords: Obstructive adenoid vegetation, Symptomatic, Adult.