polyp is an inflammatory nasal polyp found more frequently in children than adults.
According to the sites of origin, CPs can be classified as antrochoanal
, sphenochoanal, and ethmochoanal. Antrochoanal
polyps are the most common form of CPs and originate within the maxillary sinuses., Some cases with CPs arising from the middle and inferior turbinates and the nasal septum have been reported. Herein, we report a case of a CP originating from the superior turbinate that was removed by endoscopic endonasal surgery in a young male.
In addition, no difference was reportedly found compared with the control group in the maxillary sinus volume of patients with antrochoanal
polyps, a condition that reduces nasal airflow without any causing anatomic changes (26).
In Group B, 6 patients had antrochoanal
polyps, 8 had ethmoidal polyps and 12 had middle meatal polyps.
Depending on the sinus where they originate, they are termed antrochoanal
, sphenochoanal, frontochoanal or ethmoidochoanal polyps.
In 1997, Lopatin et al described 4 kinds of choanal polyps: antrochoanal
, sphenochoanal, ethmoidal-choanal, and turbinate choanal polyps.
The exclusion criteria were as follows: (1) the patients were younger than 18 years of age; (2) the patients had prior treatment with antibiotics, systemic or topical corticosteroids, or other immune-modulating drugs during 4 weeks before surgery; and (3) the patients had other chronic sinusitis including rhinosinusitis, antrochoanal
polyps, allergic fungal sinusitis, cystic fibrosis, or immotile ciliary disease.
It is still indicated in cases of irreversible scarring, polypoidal mucosal inflammation, antrochoanal
polyps and inverted papilloma.
polyp is a benign change of the mucous membrane of the maxillary sinus.
(17), (19) An antrochoanal
polyp refers to a solitary lesion that arises in the maxillary antrum of a non-atopic person, increases in size to widen the sinus ostium, and then extends into the nasal cavity.
It has also been suggested that antrochoanal
polyps (ACPs) could arise from an antral cyst (21).
Polyposis which includes sinonasal polyposis, antrochoanal
polyps and polyps with fungal aetiology is present in 34.6% of cases.