choanal polyp

Killian's polyp antrochoanal polyp endoscopy ent atlas ent images laryngology maxillary sinus nasal polyp nasal polyps polyp
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Typical Large Polyp Entering the Left Choana
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Typical Large Polyp Entering the Left Choana

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This large solitary polyp has entered but not excluded the left choana in this patient. It site of origin was from the middle turbinate.

Retropalatal Choanal Polyp
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Retropalatal Choanal Polyp

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This huge choanal polyp extended through the retro palatal space into the posterior pharynx.

Left Septal Choanal Polyp Occluding the Right Choana
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Left Septal Choanal Polyp Occluding the Right...

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The right choana in this patient has been completely obstructed by a large nasal polyp which originated from the left nasal septum extended into the nasopharynx and protruding into the right choana.

Choanal Polyp
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Choanal Polyp

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Note the large polyp obstructing the choana [endoscopic view].

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