Role of Computed Tomography Findings in the Quest of Understanding Origin of Antrochoanal Polyp

  • Vijay G. BidkarEmail author
  • Anita B. Sajjanar
  • Preetam Patil
  • Ashok S. Naik
Original Article


Aetio pathogenesis of antrochoanal polyp (ACP) remains unclear. Correlation of clinical, computed tomography (CT) and histopathological findings is attempted in this study for understanding of their origin. A retrospective chart and image review of 22 patients having ACP was done for clinical, histopathological and CT findings on affected and non affected side for extent of opacificattion, thickness of alveolar bone (AB) in the region of medial wall and the floor of maxillary sinus. Also, widening of accessory ostium was measured and compared. The mean of average thickness of AB medially on affected side was [30.91/11.27] [mean (mm)/SD)] compared to non affected side [55.60/20.74] p = 0.0001 (p < 0.05). The vertical AB thickness at floor on affected side [34.05/14.69] versus [68.14/35.29] p = 0.0001. Ipsilateral side accessory ostium widening on affected was measuring [91.45/57.00] against [55.32/38.96] p = 0.018. The additional CT findings in present study showed reduction in thickness of AB in the medial part and floor of maxillary sinus region. These findings to our knowledge have not been reported in the literature till date. The reduction in bone thickness of AB substantiates theory of antral cyst in origin of ACP. However, their association with embryonic dental lamellae needs further evaluation.


Antrochoanal polyp Computed tomography Alveolar bone 


Compliance with Ethical Standards

Conflicts of interest

All authors declares that they have no conflict of interest.

Ethical Approval

All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Approval of IEC taken. (Ref: SDMIEC:0743:2016).

Informed Consent

Written informed consent taken from all the patients.


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Copyright information

© Association of Otolaryngologists of India 2017

Authors and Affiliations

  • Vijay G. Bidkar
    • 1
    Email author
  • Anita B. Sajjanar
    • 2
  • Preetam Patil
    • 3
  • Ashok S. Naik
    • 1
  1. 1.Department of Otorhinolaryngology Head and Neck SurgeryShri Dharmasthala Manjunatheshwara College of Medical Sciences and HospitalSattur, DharwadIndia
  2. 2.Department of PathologyShri Dharmasthala Manjunatheshwara College of Medical Sciences and HospitalSattur, DharwadIndia
  3. 3.Department of Radio-DiagnosisShri Dharmasthala Manjunatheshwara College of Medical Sciences and HospitalSattur, DharwadIndia

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