Document Type

Article

Publication Date

1-31-2026

Comments

This article is the author’s final published version in Oral Oncology, Volume 174, 2026, Article number 107877.

The published version is available at https://doi.org/10.1016/j.oraloncology.2026.107877. Copyright © 2026 The Authors.

 

Abstract

BACKGROUND: The management of head and neck cancer relies on multidisciplinary expertise; however, access to tumor boards remains variable. Large language models (LLMs) may support guideline-based decision-making, although performance in complex oncologic scenarios is not well defined.

METHODS: Fourteen synthetic cases based on real tumor board encounters were evaluated. Five blinded comparator arms produced recommendations: a human expert, Non-RAG-GPT-4, Non-RAG-GPT-5, RAG-GPT-4, and RAG-GPT-5. Eight head and neck oncologic surgeons scored each recommendation for appropriateness, clarity, specificity, and feasibility using 5-point Likert scales. Paired permutation testing and inter-rater reliability were assessed.

RESULTS: LLM outputs showed close alignment with expert recommendations. RAG-based models achieved the highest mean scores across domains, with some statistically significant differences versus the expert comparator in appropriateness and clarity; however, absolute differences were modest. Inter-rater reliability was strong (ICC 0.73-0.87).

CONCLUSIONS: Advanced LLMs can generate guideline-concordant management recommendations in simulated head and neck cancer cases, supporting potential utility for decision support and education; prospective validation and expert oversight remain essential.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.

PubMed ID

41621281

Language

English

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