Abstract
Choanal polyps are benign unilateral nasal lesions originating from the lateral nasal wall and extending into the choana with a single stalk. Commonly they are antrochoanal polyp. To the best of our knowledge, there is no reported case of choanal polyp originating from sphenopalatine foramen. We present this report of a very rare case of sphenopalatine-choanal polyp from the otolaryngology department, Dammam Medical complex, Saudi Arabia.
A 25-year-old man presented with right sided nasal blockage. Endoscopic view showed polypoidal mass posterior to basal lamella and medical to middle turbinate of the right side and occupying the nasopharynx reaching the choana on the left. Computed tomography scan with contrast revealed non-enhancing soft tissue density in the right nasal cavity dorsal half extending into the choana with widening and hyperostosis of the right sphenopalatine foramen. The polyp was adequately removed by endoscopic endonasal approach. Histopathology revealed benign inflammatory polyp. Follow-up up to 24 months showed no evidence of disease recurrence.
Sphenopalatine-choanal polyp is a very rare clinical entity. It can be sufficiently managed by endoscopic approach. Exclusion of other lesions (e.g. juvenile nasopharyngeal angiofibroma, infiltrating nasopharyngeal carcinoma) is substantially important.