Evidence map›Paper›PMID 33908189›Full record

ArticleCancer cytopathology2021

Accuracy of parotid gland FNA cytology and reliability of the Milan System for Reporting Salivary Gland Cytopathology in clinical practice.

Sam T H Reerds, Adriana C H Van Engen-Van Grunsven, Frank J A van den Hoogen, Robert P Takes, Henri A M Marres, Jimmie Honings

Open access · hybridAbstract read
In one paragraph

Article in Cancer cytopathology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
5.6field-weighted citation impact, top 3% 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

18 citing papers in PubMed, 36 citations in OpenAlex.

  1. Preoperatively Diagnosed Versus Undiagnosed Major Salivary Gland Cancer: Clinicopathological Characteristics, Treatment Strategies, and Oncological Outcomes.Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2026
    Article
  2. Cytopathology Terminology Systems: European Federation of Cytological Societies Survey on Practice in Europe.Cytopathology : official journal of the British Society for Clinical Cytology · 2026
    Article
  3. Review
  4. Contemporary Management of Malignancies of the Parotid Gland: A State-of-the-Art Review.Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2026
    Review
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  10. The Usefulness of Fine Needle Aspiration Cytology in the Management of Parotid Gland Masses at a Tertiary Academic Hospital.Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India · 2023
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Sam T H ReerdsDepartment of Otorhinolaryngology and Head and Neck Surgery, Radboudumc, Nijmegen, the Netherlands.ORCID 0000-0003-4310-3977
Adriana C H Van Engen-Van GrunsvenDepartment of Pathology, Radboudumc, Nijmegen, the Netherlands.
Frank J A van den HoogenDepartment of Otorhinolaryngology and Head and Neck Surgery, Radboudumc, Nijmegen, the Netherlands.
Robert P TakesDepartment of Otorhinolaryngology and Head and Neck Surgery, Radboudumc, Nijmegen, the Netherlands.ORCID 0000-0003-4784-0499
Henri A M MarresDepartment of Otorhinolaryngology and Head and Neck Surgery, Radboudumc, Nijmegen, the Netherlands.
Jimmie HoningsDepartment of Otorhinolaryngology and Head and Neck Surgery, Radboudumc, Nijmegen, the Netherlands.ORCID 0000-0001-5077-3472
Radboud University Nijmegen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDifferentiating between malignant and benign salivary gland tumors with fine-needle aspiration cytology (FNAC) can be challenging. This study was aimed at testing the validity of the Milan System for Reporting Salivary Gland Cytopathology (MSRSGC) and at assessing possible differences in the sensitivity and specificity of parotid gland FNAC between dedicated head and neck (H&N) centers, subdivided into head and neck oncology centers (HNOCs) and head and neck oncology affiliated centers (HNOACs), and general hospitals (GHs).

methodsThe Dutch Pathology Registry (PALGA) database was searched for patients who had undergone a salivary gland resection between January 1, 2006, and January 1, 2017, and had a preoperative FNAC result. The FNAC reports were retrospectively assigned to MSRSGC categories. The risk of malignancy (ROM) was calculated for each category. The sensitivity and specificity for diagnosing malignancy were calculated and compared among HNOCs, HNOACs, and GHs.

resultsIn all, 12,898 FNAC aspirates were evaluated. The ROMs for each category were as follows: 12.5% in MSRSGC I, 10.3% in MSRSGC II, 29% in MSRSGC III, 2.3% in MSRSGC IVa, 28.6% in MSRSGC IVb, 83% in MSRSGC V, and 99.3% in MSRSGC VI. The sensitivity of FNAC was highest in HNOCs (88.1%), HNOACs scored lower (79.7%), and GHs had a sensitivity of 75.0%.

conclusionsThe MSRSGC is a valid tool for reporting parotid gland FNAC; therefore, these results strongly advocate its use. On the basis of the higher sensitivity of FNAC in dedicated H&N centers, the authors recommend that GHs use the presented management strategies to help to minimize the chances of a preoperative misdiagnosis.

Indexed as

Parotid GlandSalivary Gland NeoplasmsBiopsy, Fine-NeedleHumansPathologyReproducibility of ResultsRetrospective StudiesSalivary Glandscytological techniquesparotid glandparotid neoplasmsretrospective studies

Identifiers

PMID33908189
PMCPMC8453933
OpenAlexW3158319797

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.