Antrochoanal Polyps

Antrochoanal polyps, also known as Killian polyps, are benign growths that originate from the mucous membrane lining of the maxillary sinus (antro) and extend through the natural sinus openings (ostia) into the nasal cavity (choana). These polyps typically arise unilaterally and can cause symptoms such as nasal obstruction, difficulty breathing, nasal discharge, and anosmia (loss […]