Evidence map›Paper›PMID 35879477›Full record

ReviewActa neurochirurgica2022

The WHO 2021 Classification of Central Nervous System tumours: a practical update on what neurosurgeons need to know-a minireview.

Sverre Helge Torp, Ole Solheim, Anne Jarstein Skjulsvik

Open access · hybridAbstract readReview
In one paragraph

Review in Acta neurochirurgica, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 168 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
168citing papers in PubMed, 2 pooled it
37.6field-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

168 citing papers in PubMed, 2 syntheses or guidelines pooled it, 258 citations in OpenAlex.

  1. Pooled it
  2. Air Pollution and Brain Tumors in Children. A Systematic Review.Current environmental health reports · 2026
    Pooled it
  3. Article
  4. Article
  5. Article
  6. Article
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  8. Immunotherapy for Glioma: A compartmental framework for resistance and rational combination design.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026
    Review
  9. Paediatric sellar mature teratoma with isolated growth hormone deficiency - A case-based review.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2026
    Review
  10. Article
  11. Article
  12. Review
  13. Invasive sellar extraventricular neurocytoma: illustrative case.Journal of neurosurgery. Case lessons · 2026
    Article
  14. Advances and challenges in glioblastoma immunotherapy: a meta-analysis of immune checkpoint inhibitors.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
    Review
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  18. Review
  19. Article
  20. Article

108 more citing papers are in PubMed but not listed here.

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

3 authors at 1 institution in 1 country.

Sverre Helge TorpDepartment of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Laboratory Centre, NTNU - Norwegian University of Science and Technology, St. Olavs Hospital, NO-7491, Trondheim, Norway. sverre.torp@ntnu.no.ORCID http://orcid.org/0000-0001-8345-6852
Ole SolheimDepartment of Neurosurgery, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway.
Anne Jarstein SkjulsvikDepartment of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Laboratory Centre, NTNU - Norwegian University of Science and Technology, St. Olavs Hospital, NO-7491, Trondheim, Norway.
Norwegian University of Science and Technology · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe World Health Organization (WHO) Classification of Tumours, also known as WHO Blue Books, represents an international standardised tool in the diagnostic work-up of tumours. This classification system is under continuous revision, and progress in the molecular classification of tumours in the central nervous system (CNS) enforced an update of the WHO 2016 classification, and the fifth edition, WHO CNS5, was published in 2021. The aim of this minireview is to highlight important changes in this new edition relevant for the practicing neurosurgeon.

methodsThe sixth volume of the fifth edition of the WHO Blue Books of CNS tumours and related papers formed the basis for this minireview.

resultsMajor changes encompass standardisation of tumour grading and nomenclature as well as increased incorporation of molecular markers in the classification of CNS tumours.

conclusionAdvances in molecular genetics have resulted in more accurate diagnosis and prognosis of CNS tumours, and this minireview summarises important changes implemented in the last edition of WHO classification of CNS tumours important for the practicing neurosurgeon.

Indexed as

Central Nervous System NeoplasmsNeurosurgeonsHumansWorld Health OrganizationBiomarkerBrain tumoursDiagnosisMolecular geneticsPathology

Identifiers

PMID35879477
PMCPMC9427889
OpenAlexW4287831693

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.