Tertiary lymphoid structures associate with improved survival in early oral tongue cancer

BMC Cancer. 2022 Oct 30;22(1):1108. doi: 10.1186/s12885-022-10208-z.

Abstract

Background: The clinical significance of tertiary lymphoid structures (TLSs) is not well-documented in early oral tongue squamous cell carcinoma (OTSCC).

Methods: A total of 310 cases of early (cT1-2N0) OTSCC were included in this multicenter study. Assessment of TLSs was conducted on hematoxylin and eosin-stained sections. TLSs were assessed both in the central part of the tumor and at the invasive front area.

Results: The presence of TLSs associated with improved survival of early OTSCC as presented by Kaplan-Meier survival analyses for disease-specific survival (P = 0.01) and overall survival (P = 0.006). In multivariable analyses, which included conventional prognostic factors, the absence of TLSs associated with worse disease-specific survival with a hazard ratio (HR) of 1.96 (95% CI 1.09-3.54; P = 0.025) and poor overall survival (HR 1.66, 95% CI 1.11-2.48; P = 0.014).

Conclusion: Histological evaluation of TLSs predicts survival in early OTSCC. TLSs showed superior prognostic power independent of routine WHO grading and TNM staging system.

Keywords: Early stage; Oral tongue cancer; Survival; Tertiary lymphoid structures.

Publication types

  • Multicenter Study

MeSH terms

  • Carcinoma, Squamous Cell* / pathology
  • Head and Neck Neoplasms*
  • Humans
  • Mouth Neoplasms*
  • Prognosis
  • Squamous Cell Carcinoma of Head and Neck
  • Tertiary Lymphoid Structures* / pathology
  • Tongue Neoplasms* / pathology