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Sinonasal Inverted Papilloma-Relevance of Radiological Anatomy in Disease Recurrence
Rakesh R Bright1, Madhavi Kandagaddala2, Lisa Mary Cherian1
1Department of Otorhinolaryngology, Christian Medical College, Vellore, India.
Summary
Radiological findings in inverted papilloma (IP) can predict recurrence. Involvement of the frontal recess/sinus and posterior ethmoid are key indicators of repeated disease in recurrent IP cases.
Area of Science:
- Otolaryngology
- Radiology
- Oncology
Background:
- Inverted papilloma (IP) is a benign sinonasal tumor with a high recurrence rate.
- Understanding radiological predictors of recurrence is crucial for patient management.
Purpose of the Study:
- To detail the radiological anatomy of inverted papilloma.
- To identify radiological findings associated with disease recurrence in IP patients.
Main Methods:
- Retrospective observational study of 117 IP patients undergoing surgery (2010-2019).
- Patients categorized into primary and recurrent groups, with subcategories based on recurrence status.
- Analysis of radiological and surgical data to correlate findings with recurrence.
Main Results:
- Palatonasal recess was the most commonly affected site in both primary and recurrent IP.
- Recurrent IP cases showed significantly higher radiological involvement in the anterior ethmoid, frontal recess, and frontal sinus compared to primary cases.
- Repeated recurrence (RwR) was associated with posterior ethmoid, frontal recess, intraorbital extraconal compartment involvement, and Krouse stage T4.
Conclusions:
- Frontal recess/sinus involvement at initial recurrence predicts further recurrence.
- Posterior ethmoid, frontal recess, intraorbital extraconal compartment involvement, and Krouse stage T4 are significant predictors of repeated recurrence in IP.
