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Quantitative pretreatment CT volumetry: Association with oncologic outcomes in patients with T4a squamous carcinoma of the larynx.


ABSTRACT: The purpose of this study was to determine the impact of CT-determined pretreatment primary tumor volume on survival and disease control in T4a laryngeal squamous cell carcinoma (SCC).We retrospectively reviewed 124 patients with T4a laryngeal cancer from 2000-2011. Tumor volume measurements were collected and correlated with outcomes.Five-year overall survival (OS) for patients with tumor volume ?21 cm3 treated with larynx preservation (n = 26 of 41) was significantly inferior compared to <21 cm3 (42% vs 64%, respectively; P = .003). Five-year OS for patients with tumor volumes ?21 cm3 in the cohort treated with total laryngectomy followed by radiotherapy (RT; n = 42 of 83) was not statistically significant when compared to <21 cm3 (50% vs 63%, respectively; P = .058). On multivariate analysis, tumor volume ?21 cm3 was a significant independent correlate of worse disease-specific survival (DSS; P = .004), event-free survival (P = .005), recurrence-free survival (RFS; P = .04), noncancer cause-specific survival (P = .02), and OS (P = .0002).Pretreatment CT-based tumor volume is an independent prognostic factor of outcomes in T4a laryngeal cancer.

SUBMITTER: Shiao JC 

PROVIDER: S-EPMC5511768 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature

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<h4>Background</h4>The purpose of this study was to determine the impact of CT-determined pretreatment primary tumor volume on survival and disease control in T4a laryngeal squamous cell carcinoma (SCC).<h4>Methods</h4>We retrospectively reviewed 124 patients with T4a laryngeal cancer from 2000-2011. Tumor volume measurements were collected and correlated with outcomes.<h4>Results</h4>Five-year overall survival (OS) for patients with tumor volume ≥21 cm<sup>3</sup> treated with larynx preservati  ...[more]

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