Laryngopharyngeal Reflux Mimicking Limited Wegener Granulomatosis

We present a case of subglottic stenosis (SGS) in a young patient with positive ANCA but a wrong diagnosis of Wegener granulomatosis (WG). Instead, she was diagnosed as having laryngopharyngeal reflux (LPR). Pitfalls of ANCA testing in this scenario, the route to diagnosis of LPR and the contribution of this entity to subglottic stenosis (SGS) in WG are discussed. Caution when interpreting ANCA results is mandatory to avoid improper management.