Choanal polyp
Choanal polyp arises from the maxillary sinus antrum. The resected choanal polyp shown here is similar in color and texture
to sinonasal inflammatory polyp. However, it generally arises as a single, unilateral mass with a pedicle (arrow) attached to the
maxillary sinus. The polyp can extend posteriorly into the nasopharynx and can be mistaken for a nasopharyngeal tumor.
1 minute clinical correlation