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Endoscopic Endonasal Resection of Advanced Stage T3/T4 Sinonasal Malignancies Involving Skull Base: Monocentric Single-Surgeon Study (2020-2024) Cover

Endoscopic Endonasal Resection of Advanced Stage T3/T4 Sinonasal Malignancies Involving Skull Base: Monocentric Single-Surgeon Study (2020-2024)

Open Access
|Dec 2025

Abstract

Objective

This study aims to evaluate the outcomes of endoscopic endonasal resection in patients with advanced-stage T3/T4 sinonasal malignancies involving the skull base, analyzing surgical efficacy, challenges, and implications for future clinical practice.

Materials and Methods

A retrospective analysis was conducted on a monocentric single-surgeon cohort of 16 patients (mean age 60.7 ± 10.5 years) diagnosed with T3/T4 sinonasal malignancies affecting subsites of the skull-base region between 2020 and 2024. All the patients underwent primary radical endoscopic endonasal resection at the Department of ENT, Head & Neck Surgery, University Hospital “Tsaritsa loanna – lSUL”, Medical University – Sofia, followed by adjuvant radiotherapy.

Results

The cohort consisted of predominantly male patients (56.25%), with squamous cell carcinoma being the most common histological type (81.25%). Outcomes indicated a recurrence-free survival rate of 81.3% at a median follow-up of 30 months. Intraoperative findings revealed complexities in distinguishable tumor invasion, especially concerning critical anatomical structures, necessitating meticulous surgical techniques.

Conclusions

Endoscopic endonasal resection demonstrates potential efficacy in managing advanced sinonasal malignancies, with a favorable recurrence-free survival rate underscoring its role as a viable surgical option. The study emphasizes the importance of individualized treatment strategies and the need for multidisciplinary collaboration to optimize patient care in this challenging clinical scenario.

DOI: https://doi.org/10.2478/amb-2025-0071 | Journal eISSN: 2719-5384 | Journal ISSN: 0324-1750
Language: English
Page range: 18 - 23
Submitted on: May 1, 2025
Accepted on: Jul 7, 2025
Published on: Dec 6, 2025
Published by: Sofia Medical University
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2025 T. Popov, S. Dimitrov, V. Dobriyanova, S. Valcheva, L. Dimitrov, V. Marinov, Tz. Marinov, A. Schreiber, S. Skelina, published by Sofia Medical University
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.