Nasal obstruction due to septochoanal polyp with bone metaplasia: Case report

Abstract

In this study we describe the case of a patient with a choanal polyp that was implanted in the posterior sector of the nasal septum and spread and occupy the entire rhinopharynx. It was resected by an endonasal approach with endoscopes and extracted by mouth. In the computed tomography, areas of hyperdensity were identified, which in the histopathological study were diagnosed as mature bone trabeculae (bone metaplasia). Seven cases of septochoanal polyps were found in the literature review and only two with bone metaplasia.