Clinical significance of tumor-stroma ratio in head and neck cancer: a systematic review and meta-analysis

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http://hdl.handle.net/10138/329591

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BMC Cancer. 2021 Apr 30;21(1):480

Title: Clinical significance of tumor-stroma ratio in head and neck cancer: a systematic review and meta-analysis
Author: Almangush, Alhadi; Alabi, Rasheed O; Troiano, Giuseppe; Coletta, Ricardo D; Salo, Tuula; Pirinen, Matti; Mäkitie, Antti A; Leivo, Ilmo
Publisher: BioMed Central
Date: 2021-04-30
URI: http://hdl.handle.net/10138/329591
Abstract: Abstract Background The clinical significance of tumor-stroma ratio (TSR) has been examined in many tumors. Here we systematically reviewed all studies that evaluated TSR in head and neck cancer. Methods Four databases (Scopus, Medline, PubMed and Web of Science) were searched using the term tumo(u)r-stroma ratio. The preferred reporting items for systematic reviews and meta-analyses (PRISMA) were followed. Results TSR was studied in nine studies of different subsites (including cohorts of nasopharyngeal, oral, laryngeal and pharyngeal carcinomas). In all studies, TSR was evaluated using hematoxylin and eosin staining. Classifying tumors based on TSR seems to allow for identification of high-risk cases. In oral cancer, specifically, our meta-analysis showed that TSR is significantly associated with both cancer-related mortality (HR 2.10, 95%CI 1.56–2.84) and disease-free survival (HR 1.84, 95%CI 1.38–2.46). Conclusions The assessment of TSR has a promising prognostic value and can be implemented with minimum efforts in routine head and neck pathology.
Subject: Head and neck cancer
Tumor-stroma ratio
Tumor-stroma
Clinical relevance
Marker
Systematic review and meta-analysis
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