… , sites of CP origin are the maxillary or sphenoid sinus, and choanal polyposis is a disease
usually affecting one sinus. There is strong evidence that the antral or sphenoidal parts of CP …

… based on the origin of their pedicle: antrochoanal (originating … sinus, and hence are termed
antrochoanal polyps. CP rarely … the right sphenoidal sinus and its involvement by the polyp. …

… sphenoid sinus and extends through the sphenoid ostium, across the sphenoethmoid recess,
and into the choana (… The sinus of origin is important to identify, as the surgical approach …

… Maxillary, ethmoid, and sphenoid sinuses are involved in … origin were maxillary sinus in 89
patients (90.8%), sphenoid … approach is safe for antrochoanal polyp resection if the endonasal …

… If a slender antral polyp gets caught in the ostium and fixed there we have the conditions …
cell or the sphenoidal sinus may in rare cases be transformed into a choanal polypus which can …

… , antrochoanal polyps are the most frequent type; other sites of origins like sphenoid and
ethmoidal sinuses, and the lateral wall of the nose can all produce choanal polyps and should …

… nasal polyps are found to be antrochoanal polyps [4]. Polyps originating from a sphenoid si…
In our patient CT showed the origin of the choanal polyp, which was first seen with 0 and 70 …

… from the sphenoid ostium it passes through the choana and extends to the nasopharynx. In
contrast to common nasal polyposis and antrochoanal polyps it is … Origin of the choanal polyp …

… polyp, in three cases as part of an antrochoanal polyp, and in … A 18-year-old man, with a
long history of nasal polyps treated … Unrelated inflammatory changes in the sphenoid sinus …

… Background: The aim of this study was to evaluate our experience on the diagnosis and
treatment of choanal polyps (CP)… in our two patients (septochoanal), sphenoid sinus in 1 patient (…