Evidence map›Paper›PMID 40671770›Full record

ArticleGland surgery2025

Artificial intelligence-assisted HER2 interpretation for breast cancers in a multi-laboratory study.

Libo Yang, Jie Chen, Leyi Gao, Fengling Li, Xudan Yang, Juan Ji, Pei Zhang, Ping Hua, Xiulan Liu, Rong Wang and 4 more

Abstract read
In one paragraph

Article in Gland surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Libo YangDepartment of Pathology, West China Hospital, Sichuan University, Chengdu, China.
Jie ChenInstitute of Clinical Pathology, West China Hospital, Sichuan University, Chengdu, China.
Leyi GaoDepartment of Pathology, West China Hospital, Sichuan University, Chengdu, China.
Fengling LiDepartment of Pathology, West China Hospital, Sichuan University, Chengdu, China.
Xudan YangDepartment of Pathology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.
Juan JiDepartment of Pathology, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China.
Pei ZhangDepartment of Pathology, Chengdu Second People's Hospital, Chengdu, China.
Ping HuaDepartment of Pathology, Chengdu Women and Children's Central Hospital, Chengdu, China.
Xiulan LiuDepartment of Pathology, The Second People's Hospital of Neijiang, Neijiang, China.
Rong WangDepartment of Pathology, West China Hospital, Sichuan University, Chengdu, China.
Zhenru WuInstitute of Clinical Pathology, West China Hospital, Sichuan University, Chengdu, China.
Fei ChenInstitute of Clinical Pathology, West China Hospital, Sichuan University, Chengdu, China.
Bing WeiDepartment of Pathology, West China Hospital, Sichuan University, Chengdu, China.
Zhang ZhangDepartment of Pathology, West China Hospital, Sichuan University, Chengdu, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Improving the concordance of human epidermal growth factor receptor 2 (HER2) examinations among laboratories remains a challenge. In this multi-laboratory study, we investigated the concordance of HER2 immunohistochemistry (IHC) examination through manual and artificial intelligence (AI)-assisted interpretation. Methods: A tissue microarray (TMA) comprising 53 breast cancer samples was constructed and distributed to 35 participating laboratories. For each sample on every slide, IHC scores of 0, 1+, 2+, and 3+ were recorded. Subsequently, cases that failed to achieve complete agreement during manual interpretation were re-evaluated using an AI-assisted microscope. Results: During manual interpretation, 14 out of 53 cases (14/53, 26.4%) demonstrated concordant results across all laboratories, including 13 IHC-0 cases and 1 IHC-3+ case. Notably, cases scored as 1+ in at least one laboratory exhibited a low overall percentage agreement (OPA) and Fleiss Kappa value. Among the 39 cases with non-concordant manual interpretation, 14 cases (14/39, 35.9%) achieved complete agreement through AI-assisted HER2 interpretation. In cases where manual interpretation discrepancies were restricted to scores of 0 and 1+, 69.6% (16/23) of the cases still showed differences between 0 and 1+ in AI-assisted HER2 interpretation. Disagreements between manual and AI-assisted interpretation occurred significantly more frequently in sections manually scored as 1+ compared to those scored as 0 (58.6% Conclusions: The weakly staining phenotype leads to poor agreement in the manual interpretation of HER2 IHC-1+ breast cancers. AI-assisted HER2 interpretation offers a viable approach for multi-laboratory studies, effectively avoiding the subjective errors inherent in manual interpretation.

Indexed as

Breast cancerhuman epidermal growth factor receptor 2 (HER2)interpretation

Identifiers

PMID40671770
PMCPMC12261348

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