Evidence map›Paper›PMID 33984138›Full record

ArticleNeuro-oncology2021

The value of bone marrow biopsy for staging of patients with primary CNS lymphoma.

Michelle Margold, Sabine Seidel, Thomas Kowalski, Swetlana Ladigan-Badura, Alexander Baraniskin, Roland Schroers, Anna Verena Frey, Ingo G H Schmidt-Wolf, Ulrich Herrlinger, Agnieszka Korfel and 1 more

Open access · hybridAbstract readMulticenter Study
In one paragraph

Article in Neuro-oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.3field-weighted citation impact, top 17% 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

8 citing papers in PubMed, 15 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 4 institutions in 1 country.

Michelle MargoldDepartment of Neurology, Knappschaftskrankenhaus University of Bochum, Bochum, Germany.
Sabine SeidelDepartment of Neurology, Knappschaftskrankenhaus University of Bochum, Bochum, Germany.
Thomas KowalskiDepartment of Neurology, Knappschaftskrankenhaus University of Bochum, Bochum, Germany.
Swetlana Ladigan-BaduraDepartment of Internal Medicine, Knappschaftskrankenhaus University of Bochum, Bochum, Germany.
Alexander BaraniskinDepartment of Internal Medicine, Knappschaftskrankenhaus University of Bochum, Bochum, Germany.
Roland SchroersDepartment of Internal Medicine, Knappschaftskrankenhaus University of Bochum, Bochum, Germany.
Anna Verena FreyDepartment of Pathology, University of Freiburg, Freiburg, Germany.
Ingo G H Schmidt-WolfDepartment of Integrated Oncology, University of Bonn, Bonn, Germany.
Ulrich HerrlingerDepartment of Neurology, University of Bonn, Bonn, Germany.
Agnieszka KorfelDepartment of Hemato-Oncology, Charité University of Berlin, Campus Benjamin Franklin, Berlin, Germany.
Uwe SchlegelDepartment of Neurology, Knappschaftskrankenhaus University of Bochum, Bochum, Germany.
Universitätsklinikum Knappschaftskrankenhaus Bochum · DEUniversity of Bonn · DECharité - Universitätsmedizin Berlin · DEUniversity of Freiburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn patients with presumed primary CNS lymphoma (PCNSL), a systemic manifestation is found only in a small minority. Although bone marrow biopsy (BMB) is recommended for staging, its diagnostic value is unclear.

methodsA retrospective analysis of 392 patients with presumed PCNSL from 3 university hospitals and 33 patients with secondary CNS lymphoma (SCNSL) and initial CNS involvement from a multicenter Germany-wide prospective registry was performed.

resultsA BMB was performed and documented in 320/392 patients with presumed PCNSL; 23 had pathologic results. One harbored the same lymphoma in the brain and bone marrow (BM), 22 showed findings in BM discordant to the histology of brain lymphoma; n = 12 harbored a low-grade lymphoma in the BM, the other showed B-cell proliferation but no proof of lymphoma (n = 5), monoclonal B cells (n = 3), or abnormalities not B-cell-associated (n = 2). In the group of SCNSL with initial CNS manifestation, 32/33 patients underwent BMB; 7 were documented with bone marrow involvement (BMI); 1 had concordant results in the brain and BM with no other systemic manifestation. Six had additional systemic lymphoma manifestations apart from the brain and BM.

conclusionsIn only 2 out of 352 (0.6%) patients with CNS lymphoma (320 presumed PCNSL and 32 SCNSL), BMB had an impact on diagnosis and treatment. While collected in a selected cohort, these findings challenge the value of BMB as part of routine staging in presumed PCNSL.

Indexed as

LymphomaLymphoma, Non-HodgkinBiopsyBone MarrowFluorodeoxyglucose F18HumansNeoplasm StagingRetrospective StudiesFluorodeoxyglucose F18bone marrow involvementdiffuse large B-cell lymphomaPCNSLprimary CNS lymphomastaging

Identifiers

PMID33984138
PMCPMC8643483
OpenAlexW3163819977

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Registered trials

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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.