Abstract
PurposeSurgery is currently indicated as a unimodal therapeutic approach with curative intent in selected laryngeal squamous cell carcinomas (LSCCs) ranging from stage I to III. The main aim of this study was to evaluate the prognostic role of CD105- and CD31-assessed microvessel density (MVD) in biopsy and in surgical specimens from a cohort of consecutive stage I-III LSCCs who had undergone exclusive primary surgery, according to current guidelines. Materials and methodsCD105- and CD31-assessed MVD were analyzed in paired biopsies and surgical specimens of 24 consecutive cases of LSCC who underwent exclusive surgery. ResultsOn biopsy specimens, CD105- and CD31-assessed MVD were positively associated with recurrence risk (hazard ratio [HR] 1.266, p = 0.0034 and HR 1.265, p = 0.0081, respectively). In surgical specimens, CD105- and CD31-assessed MVD were significantly associated with disease-free survival (DFS) (HR 1.213, p = 0.0016 and HR 1.237, p = 0.0023 respectively). Considering a stratification based on median value, recurrence risk was higher in patients with a CD105-assessed MVD>0 in both biopsies and surgical specimens (HR 11.005, p = 0.0326 and HR 34.483, p = 0.0311). No significant differences in terms of recurrence risk were found for CD31-assessed on biopsies or on surgical specimens. ConclusionsThis study supports the role of biopsy CD105-MVD as a predictor of recurrence after exclusive surgery for LSCCs. Further prospective studies are mandatory to better characterize the prognostic role of CD105-MVD evaluated on biopsies to develop novel criteria to identify patients at higher risk of recurrence for more aggressive approaches or adjuvant treatment.
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