Evidence map›Paper›PMID 25318587›Full record

ArticleBrain pathology (Zurich, Switzerland)2015

Pleomorphic Xanthoastrocytoma: Natural History and Long-Term Follow-Up.

Cristiane M Ida, Fausto J Rodriguez, Peter C Burger, Alissa A Caron, Sarah M Jenkins, Grant M Spears, Dawn L Aranguren, Daniel H Lachance, Caterina Giannini

Open access · greenAbstract read
In one paragraph

Article in Brain pathology (Zurich, Switzerland), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 101 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
101citing papers in PubMed, 1 pooled it
7.8field-weighted citation impact, top 2% 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

101 citing papers in PubMed, 1 synthesis or guideline pooled it, 242 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. PXA-like tumors: prognostic implications.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Extra-temporal pediatric low-grade gliomas and epilepsy.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2024
    Review
  12. Low-grade glioma of the temporal lobe and tumor-related epilepsy in children.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2024
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. [Pediatric brain tumors].Pathologie (Heidelberg, Germany) · 2023
    Review
  20. Article

41 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

9 authors at 3 institutions in 1 country.

Cristiane M IdaDepartment of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
Fausto J RodriguezDepartment of Pathology, Johns Hopkins University, Baltimore, MD, USA.
Peter C BurgerDepartment of Pathology, Johns Hopkins University, Baltimore, MD, USA.
Alissa A CaronDepartment of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
Sarah M JenkinsDepartment of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA.
Grant M SpearsDepartment of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA.
Dawn L ArangurenDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Daniel H LachanceDepartment of Neurology, Mayo Clinic, Rochester, MN, USA.
Caterina GianniniDepartment of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
Mayo Clinic in Arizona · USJohns Hopkins University · USMayo Clinic in Florida · US

Funding

Translational Research Central ServicesP30CA006973 · NCI · JOHNS HOPKINS UNIVERSITY · PI Rosalie Wollett · 1985 to 2026
$208.6M
NCI NIH HHS P30 CA006973
6 · The paper itself

Abstract

Prognostic significance of histological anaplasia and BRAF V600E mutation were retrospectively evaluated in 74 patients with pleomorphic xanthoastrocytoma (PXA). Median age at diagnosis was 21.5 years (31 pediatric, 43 adult) and median follow-up 7.6 years. Anaplasia (PXA-AF), defined as mitotic index ≥ 5/10 HPF and/or presence of necrosis, was present in 33 cases. BRAF V600E mutation was detected in 39 (of 60) cases by immunohistochemical and/or molecular analysis, all negative for IDH1 (R132H). Mitotic index ≥ 5/10 HPF and necrosis were associated with decreased overall survival (OS; P = 0.0005 and P = 0.0002, respectively). In all cases except two, necrosis was associated with mitotic index ≥ 5/10 HPF. Patients with BRAF V600E mutant tumors had significantly longer OS compared with those without BRAF V600E mutation (P = 0.02). PXA-AF patients, regardless of age, had significantly shorter OS compared with those without (P = 0.0003). Recurrence-free survival was significantly shorter for adult PXA-AF patients (P = 0.047) only. Patients who either recurred or died ≤ 3 years from diagnosis were more likely to have had either PXA-AF at first diagnosis (P = 0.008) or undergone a non-gross total resection procedure (P = 0.004) as compared with patients who did not. This study provides further evidence that PXA-AF behaves more aggressively than PXA and may qualify for WHO grade III "anaplastic" designation.

Indexed as

AdolescentAdultAgedAnaplasiaAstrocytomaBrain NeoplasmsChildChild, PreschoolDisease-Free SurvivalFemaleFollow-Up StudiesHumansIsocitrate DehydrogenaseMaleMiddle AgedMutationBRAF protein, humanIDH1 protein, humanIsocitrate DehydrogenaseProto-Oncogene Proteins B-rafanaplasticBRAF V600EgliomaIDH1 R132Hpleomorphic xanthoastrocytomaWHO grade

Identifiers

PMID25318587
PMCPMC4400218
OpenAlexW2122481654

What OpenQuestion holds

Textmetadata
LicenceTDM
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.