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Objective: The aim of this study was to investigate which diagnostic method was more efficient and reliable for preoperative T staging of laryngeal cancers by comparing videolaryngostroboscopy (VLS) and computed tomography (CT) findings with histopathologic examination of operation specimens. The main goal was to determine the most rational and accurate approach for preoperative evaluation and staging of larynx cancers. Material and Methods: This retrospective study included 58 patients operated on for larynx cancer. Preoperative VLS and CT findings were compared with histopathologic examination results of the operation specimens. The larynx was divided into 12 anatomical areas for this purpose. In addition, thyroid and cricoid cartilage invasion and extralaryngeal invasion parameters were included in the evaluation. Invasion of the tumor was identified by each evaluation method separately. Mobility of the vocal cords and arytenoids was evaluated with VLS. Results: CT was more effective than VLS in the evaluation of the paraglottic area, preepiglottic area, and subglottic area. CT was superior to VLS for the identification of thyroid involvement, cricoid cartilages and extralaryngeal invasion. VLS was more effective than CT for the assessment of the vocal cords and anterior commissure. Both diagnostic methods were effective for identification of tumor on the epiglottis. Conclusion: Success of VLS and CT changes according to the involvement of different anatomic areas. A combination of VLS and CT together, while taking into consideration the location of the tumor, improves accurate staging and consequently the surgical success.

Comparison of Videolaryngostroboscopy and Computed Tomography Findings with Histopathological Results in Larynx Cancers