Evidence map›Paper›PMID 32815080›Full record

ArticleAnnals of surgical oncology2021

Effect of Intraoperative Imprint Cytology Followed by Frozen Section on Margin Assessment in Breast-Conserving Surgery.

Tamaki Tamanuki, Maki Namura, Tomoyoshi Aoyagi, Sinichirou Shimizu, Tomoko Suwa, Hiroshi Matsuzaki

Abstract read
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In one paragraph

Article in Annals of surgical oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

17 citing papers in PubMed, 21 citations in OpenAlex.

  1. Trial
  2. Review
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  4. TROP2-targeted NIR-II fluorescence imaging for visualizing surgical margins and metastatic sentinel lymph nodes in breast cancers.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  15. Evolution of Frozen Section in Carcinoma Breast: Systematic Review.International journal of breast cancer · 2022
    Review
  16. Review
  17. 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

6 authors at 1 institution in 1 country.

Tamaki TamanukiDepartment of Breast Surgical Oncology, Funabashi Municipal Medical Center, 1-21-1 Kanasugi, Funabashi, Chiba, 273-8588, Japan. tamaki38tamaki@yahoo.co.jp.
Maki NamuraDepartment of Breast Surgical Oncology, Funabashi Municipal Medical Center, 1-21-1 Kanasugi, Funabashi, Chiba, 273-8588, Japan.
Tomoyoshi AoyagiDepartment of Breast Surgical Oncology, Funabashi Municipal Medical Center, 1-21-1 Kanasugi, Funabashi, Chiba, 273-8588, Japan.
Sinichirou ShimizuDepartment of Pathology, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan.
Tomoko SuwaDepartment of Pathology, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan.
Hiroshi MatsuzakiDepartment of Breast Surgical Oncology, Funabashi Municipal Medical Center, 1-21-1 Kanasugi, Funabashi, Chiba, 273-8588, Japan.
Funabashi Municipal Medical Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIntraoperative margin assessment can reduce positive margins in patients undergoing breast-conserving surgery. However, reports on intraoperative margin assessment have described only the use of either imprint cytology or frozen section. This study was designed to elucidate the effect of intraoperative margin assessment using imprint cytology followed by frozen section.

methodsOverall, 522 patients were enrolled. First, the entire surgical margin was subjected to imprint cytology. Frozen section was performed only in cases with "positive" or "suspicious" imprint cytology results. An additional intraoperative excision was performed in patients with frozen section-positive lesion sites. All margins were evaluated using postoperative permanent sections after excision.

resultsAmong 522 patients, 136 (26.1%) were imprint cytology-positive, and 386 (73.9%) were imprint cytology-negative. Among the 386 imprint cytology-negative patients not subjected to frozen section, 11 (2.1%) were permanent sections-positive (imprint cytology-false-negative). In 47 of the 136 imprint cytology-positive patients, additional intraoperative excision was unnecessary due to the frozen section-negative diagnosis. Moreover, these patients could avoid reoperation, because they were permanent section-negative. The false-positive rate of imprint cytology alone was 13.4%, but adding frozen section to imprint cytology decreased the overall false-positive rate to 2.5%. After undergoing excision, four patients still had positive margins. The overall positive margin rate in the final pathology based on permanent sections was 2.9% (15/522).

conclusionsImprint cytology followed by frozen section led to a markedly decreased positive margin rate. This is considered the best method for intraoperative margin assessment, as it can overcome the limitations of cytology and histology performed individually.

Indexed as

Breast NeoplasmsCytodiagnosisFrozen SectionsFemaleHumansMargins of ExcisionMastectomy, SegmentalPerioperative PeriodReoperation

Identifiers

PMID32815080
OpenAlexW3070444368

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.