Performance Evaluation of Open-Source Large Language Models for Assisting Pathology Report Writing in Japanese

Fuente: arXiv
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Autori principali: Kawai, Masataka, Sakashita, Singo, Ishikawa, Shumpei, Watanabe, Shogo, Matsuoka, Anna, Sakurai, Mikio, Fujimoto, Yasuto, Takahara, Yoshiyuki, Ohara, Atsushi, Miyake, Hirohiko, Ishii, Genichiro
Natura: Preprint
Pubblicazione: 2026
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author Kawai, Masataka
Sakashita, Singo
Ishikawa, Shumpei
Watanabe, Shogo
Matsuoka, Anna
Sakurai, Mikio
Fujimoto, Yasuto
Takahara, Yoshiyuki
Ohara, Atsushi
Miyake, Hirohiko
Ishii, Genichiro
author_facet Kawai, Masataka
Sakashita, Singo
Ishikawa, Shumpei
Watanabe, Shogo
Matsuoka, Anna
Sakurai, Mikio
Fujimoto, Yasuto
Takahara, Yoshiyuki
Ohara, Atsushi
Miyake, Hirohiko
Ishii, Genichiro
contents The performance of large language models (LLMs) for supporting pathology report writing in Japanese remains unexplored. We evaluated seven open-source LLMs from three perspectives: (A) generation and information extraction of pathology diagnosis text following predefined formats, (B) correction of typographical errors in Japanese pathology reports, and (C) subjective evaluation of model-generated explanatory text by pathologists and clinicians. Thinking models and medical-specialized models showed advantages in structured reporting tasks that required reasoning and in typo correction. In contrast, preferences for explanatory outputs varied substantially across raters. Although the utility of LLMs differed by task, our findings suggest that open-source LLMs can be useful for assisting Japanese pathology report writing in limited but clinically relevant scenarios.
format Preprint
id arxiv_https___arxiv_org_abs_2603_11597
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Performance Evaluation of Open-Source Large Language Models for Assisting Pathology Report Writing in Japanese
Kawai, Masataka
Sakashita, Singo
Ishikawa, Shumpei
Watanabe, Shogo
Matsuoka, Anna
Sakurai, Mikio
Fujimoto, Yasuto
Takahara, Yoshiyuki
Ohara, Atsushi
Miyake, Hirohiko
Ishii, Genichiro
Computation and Language
Artificial Intelligence
The performance of large language models (LLMs) for supporting pathology report writing in Japanese remains unexplored. We evaluated seven open-source LLMs from three perspectives: (A) generation and information extraction of pathology diagnosis text following predefined formats, (B) correction of typographical errors in Japanese pathology reports, and (C) subjective evaluation of model-generated explanatory text by pathologists and clinicians. Thinking models and medical-specialized models showed advantages in structured reporting tasks that required reasoning and in typo correction. In contrast, preferences for explanatory outputs varied substantially across raters. Although the utility of LLMs differed by task, our findings suggest that open-source LLMs can be useful for assisting Japanese pathology report writing in limited but clinically relevant scenarios.
title Performance Evaluation of Open-Source Large Language Models for Assisting Pathology Report Writing in Japanese
topic Computation and Language
Artificial Intelligence
url https://arxiv.org/abs/2603.11597