Evidence map›Paper›PMID 37076889›Full record

ArticleDiagnostic pathology2023

Tumor Area Positivity (TAP) score of programmed death-ligand 1 (PD-L1): a novel visual estimation method for combined tumor cell and immune cell scoring.

Chunyan Liu, Fang Fang, Ying Kong, Ehab A ElGabry

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Diagnostic pathology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 32 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 4 pooled it
11.3field-weighted citation impact, top 1% of its field
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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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

32 citing papers in PubMed, 4 syntheses or guidelines pooled it, 49 citations in OpenAlex.

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  10. Real-world characterization of PD-L1 expression in patients with advanced esophagogastric adenocarcinoma in Spain.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
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  17. Immune checkpoint inhibitors in gynecologic oncology: Current status and perspectives.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2025
    Review
  18. Biomarkers in gastroesophageal cancer 2025: an updated consensus statement by the Spanish Society of Medical Oncology (SEOM) and the Spanish Society of Pathology (SEAP).Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Chunyan LiuRoche Tissue Diagnostics, 1910 E. Innovation Park Dr., Oro Valley, Tucson, AZ, 85755, USA.
Fang FangRoche Tissue Diagnostics, 1910 E. Innovation Park Dr., Oro Valley, Tucson, AZ, 85755, USA.
Ying KongRoche Tissue Diagnostics, 1910 E. Innovation Park Dr., Oro Valley, Tucson, AZ, 85755, USA. kongyingsfy@gmail.com.
Ehab A ElGabryRoche Tissue Diagnostics, 1910 E. Innovation Park Dr., Oro Valley, Tucson, AZ, 85755, USA.
Roche (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDetermination of programmed death-ligand 1 (PD-L1) protein expression level in tumor cells and tumor-associated immune cells is critical for identifying patients eligible for immunotherapy. PD-L1 manual scoring algorithms can generally be divided into two categories: cell counting and visual estimation. Cell counting can be time-consuming and is not in sync with pathology practice, which classically uses a Gestalt approach based on pattern recognition and visual estimation. In this study, we introduce the Tumor Area Positivity (TAP) score, which is a novel, straightforward method for scoring tumor cells and immune cells together using visual estimation.

methodsTo demonstrate the reproducibility of TAP scoring among pathologists, between- and within-reader precision studies were performed both within (internal) and outside of (external) our organization. We also compared the TAP score to the Combined Positive Score (CPS), which is based on cell counting, for concordance and time efficacy.

resultsThe average positive agreement, average negative agreement, and overall percent agreement between and within readers were all above 85% for both internal and combined external reader precision studies. TAP score had high concordance rate at 5% cutoff compared with CPS at cutoff 1: positive percent agreement, negative percent agreement, and overall percent agreement were all above 85%.

conclusionsOur study showed the TAP scoring method to be straightforward, significantly less time-consuming, and highly reproducible with a high concordance rate between TAP score and CPS.

Indexed as

B7-H1 AntigenLung NeoplasmsBiomarkers, TumorHumansImmunohistochemistryReproducibility of ResultsB7-H1 AntigenBiomarkers, TumorCD274 protein, humanImmune cellsProgrammed death-ligand 1 (PD-L1)Scoring methodTumor area positivityTumor cells

Identifiers

PMID37076889
PMCPMC10114344
OpenAlexW4366579938

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.