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[Bilateral rhinolithiasis by transseptal permeation: a case report].

We report a case of bilateral rhinolithiasis due to transseptal destruction. The lesion developed over several years leading to bilateral nasal obstruction and recurrent purulent fetid nasal discharge. At rhinoscopy, the lesion was located in the posterior part of the nasal fossae. CT-scan showed total destruction of the bony septum and a transversal rhinolith anterior to the choanal orifices. Extraction was performed under local anesthesia. Follow-up endoscopy confirmed transseptal permeation.