Evidence map›Paper›PMID 30123882›Full record

ArticleEuropean journal of breast health2018

Immunohistochemical HER2 Status Evaluation in Breast Cancer Pathology Samples: A Multicenter, Parallel-Design Concordance Study.

Tülay Canda, Ekrem Yavuz, Necmettin Özdemir, Sennur İlvan, Serpil Sak Dizbay, Merih Güray Durak, Sıtkı Tuzlalı, Osman Zekioğlu, Atakan Demir, Handan Onur and 2 more

Open access · diamondAbstract read
In one paragraph

Article in European journal of breast health, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.3field-weighted citation impact, top 38% 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

5 citing papers in PubMed, 10 citations in OpenAlex.

  1. Toward Optimizing the Impact of Digital Pathology and Augmented Intelligence on Issues of Diagnosis, Grading, Staging, and Classification.Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc · 2025
    Review
  2. Article
  3. Review
  4. Article
  5. A Root Cause Analysis Into the High Error Rate in Clinical Immunohistochemistry.Applied immunohistochemistry & molecular morphology : AIMM
    Article
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

12 authors at 4 institutions in 1 country.

Tülay CandaDepartment of Pathology, Dokuz Eylül University School of Medicine, İzmir, Turkey.ORCID 0000-0002-1170-3815
Ekrem YavuzDepartment of Pathology, İstanbul University, İstanbul School of Medicine, İstanbul, Turkey.ORCID 0000-0002-3166-0648
Necmettin ÖzdemirDepartment of Pathology, Ege University School of Medicine, İzmir, Turkey.ORCID 0000-0001-9721-7510
Sennur İlvanDepartment of Pathology, İstanbul University, Cerrahpaşa School of Medicine, İstanbul, Turkey.ORCID 0000-0003-1862-3794
Serpil Sak DizbayDepartment of Pathology, Ankara University School of Medicine, Ankara, Turkey.ORCID 0000-0003-3666-3095
Merih Güray DurakDepartment of Pathology, Dokuz Eylül University School of Medicine, İzmir, Turkey.ORCID 0000-0003-3516-952X
Sıtkı TuzlalıDepartment of Pathology, İstanbul University, İstanbul School of Medicine, İstanbul, Turkey.ORCID 0000-0002-2658-6439
Osman ZekioğluDepartment of Pathology, Ege University School of Medicine, İzmir, Turkey.ORCID 0000-0001-9728-4385
Atakan DemirDepartment of Pathology, İstanbul University, Cerrahpaşa School of Medicine, İstanbul, Turkey.ORCID 0000-0002-1940-4086
Handan OnurDepartment of Pathology, Ankara University School of Medicine, Ankara, Turkey.ORCID 0000-0002-7218-7965
Kasım ÜstündağClinical Research, Roche Preparations San. Inc., İstanbul, Turkey.ORCID 0000-0002-4786-6165
Burçe GöktaşClinical Research, Roche Preparations San. Inc., İstanbul, Turkey.ORCID 0000-0002-8153-0753
Ankara University · TRDokuz Eylül University · TREge University · TRIstanbul University · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveAs patients with increased human epidermal growth factor receptor (HER2) overexpression are more likely to benefit from trastuzumab treatment, the accuracy of HER2 receptor status in breast cancer patients is significant for appropriate disease management. However, this assessment is not harmonized and results may be highly variable between centers. The aim of this study was to investigate the degree of interlaboratory variability in the results of HER2 expression reported by 5 participating centers and to assess the concordance between these centers and a reference laboratory.

resultsWhen the concordance of participating centers and the reference laboratory was evaluated regarding negative (0-1+), equivocal 2(+) and positive 3(+) classification of HER2 immunostaining, the highest concordance was found in Center-A, and the lowest in Center-C (Kendall's tau-b concordance coefficient 0.911 and 0.724, respectively). The concordance of the centers with reference laboratory was 80.0% both in equivocal and positive samples, while it increased up to 91.8% in negative samples.

conclusionsThis study showed that in general there is sufficiently good agreement between the reference laboratory and the participating centers for immunohistochemical HER2 assessment.

Indexed as

breast cancerdiagnosisHER2Immunohistochemistry

Identifiers

PMID30123882
PMCPMC6092158
OpenAlexW2884876487

What OpenQuestion holds

Textmetadata
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Registered trials

None linked

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.