[A rare case of congenital hairy polyp of the nasal septum in a child].

This paper reports a rare case of congenital hairy polyp arising from the posterior edge of the nasal septum in a child. The patient presented with poor ventilation in the right nasal cavity since birth, which gradually progressed to bilateral nasal obstruction with purulent rhinorrhea and nasal malodor. Over the years, the patient underwent multiple MRI examinations at several hospitals, which consistently suggested"posterior nasal mass: meningoencephalocele teratoma ". In June 2024, the patient underwent "endoscopic transoral-nasal combined plasma resection of the nasal septal mass" under general anesthesia in our department. Postoperative pathology confirmed the diagnosis of hairy polyp. The patient was discharged on the second postoperative day and has been followed up for more than 3 months. The patients clinical symptoms have resolved, and the surgical outcome is satisfactory. Re-examination by nasal endoscopy shows good healing of the nasal septal mucosa, with no posterior choanal or nasopharyngeal stenosis and no tumor recurrence.