Presentation
Follow-up for chronic rhinosinusitis.
Patient Data
Age: 20 years
Gender: Female
From the case:
Antrochoanal polyp
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A left maxillary polyp is seen extending to the nasopharynx through the sinus ostium and posterior choana, compatible with an antrochoanal polyp.
Case Discussion
An antrochoanal polyp is, by definition, a maxillary polyp that passes though the maxillary antrum (ostium) and through the choana.
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