EURORAD ESR

Case 1977

Antrochoanal polyp with accessory ostium

Author(s)
Rakhtawane E, Le Van An JC, Jarno F, Parva P, Diallo T
 
Patient
male, 24 year(s)
 
 
  • Figure 1
    Coronal CT image
     

    A low-attenuation soft-tissue mass is seen filling the right maxillary sinus. The polyp passes through the accessory ostia into the nasal fossa, prolapsing in the cavum through the choana.

     
    Area of Interest: unknown; Imaging Technique: Coronal CT scans;

    A low-attenuation soft-tissue mass is seen filling the right maxillary sinus. The polyp passes through the accessory ostia into the nasal fossa, prolapsing in the cavum through the choana.

     
    Area of Interest: unknown; Imaging Technique: Coronal CT scans;
     
     
  • Figure 2
    Axial CT image
     

    The polyp comes through the middle meatus into the ipsilateral nasal fossa, then into the cavum through the choana.

     
    Area of Interest: unknown; Imaging Technique: Axial CT scans;

    The polyp comes through the middle meatus into the homolateral nasal fossa, then into the cavum through the choana.

     
    Area of Interest: unknown; Imaging Technique: Axial CT scans;

    The polyp comes through the middle meatus into the homolateral nasal fossa, then into the cavum through the choana.

     
    Area of Interest: unknown; Imaging Technique: Axial CT scans;
     
     
A low-attenuation soft-tissue mass is seen filling the right maxillary sinus. The polyp passes through the accessory ostia into the nasal fossa, prolapsing in the cavum through the choana.
 
A low-attenuation soft-tissue mass is seen filling the right maxillary sinus. The polyp passes through the accessory ostia into the nasal fossa, prolapsing in the cavum through the choana.
 
The polyp comes through the middle meatus into the ipsilateral nasal fossa, then into the cavum through the choana.
 
The polyp comes through the middle meatus into the homolateral nasal fossa, then into the cavum through the choana.
 
The polyp comes through the middle meatus into the homolateral nasal fossa, then into the cavum through the choana.
 
 
 
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