Evidence map›Paper›PMID 39928192›Full record

ArticleDiscover oncology2025

Driver mutation detected in cerebrospinal fluid despite negative liquid biopsy results.

Kei Kunimasa, Daisuke Aohara, Kazumi Nishino

Abstract read
In one paragraph

Article in Discover oncology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

1 citing paper in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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.

Kei KunimasaDepartment of Thoracic Oncology, Osaka International Cancer Institute, 3-1-69 Otemae Chuoku, Osaka, Osaka, 541-8567, Japan. kei.kunimasa@oici.jp.
Daisuke AoharaDepartment of Respiratory Medicine, Osaka General Hospital of West Japan Railway Company, Osaka, Japan.
Kazumi NishinoDepartment of Thoracic Oncology, Osaka International Cancer Institute, 3-1-69 Otemae Chuoku, Osaka, Osaka, 541-8567, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We report a case where a KRAS G12V driver mutation was identified in cerebrospinal fluid (CSF) but not in peripheral blood cell-free DNA (cfDNA) in a patient with advanced lung adenocarcinoma and significant central nervous system involvement. A 67-year-old man presented with hemoptysis and was diagnosed with stage IVB TTF-1-positive lung adenocarcinoma with brain and bone metastases. Standard chemotherapy was ineffective. While cfDNA analysis detected only a RAD21 mutation, CSF analysis revealed the KRAS G12V mutation. Despite the identification, no effective targeted therapy was available. This case highlights that CSF may be more suitable than peripheral blood cfDNA for detecting driver mutations in patients with predominant CNS lesions.

Indexed as

Cell free DNACerebrospinal fluidDriver mutationGene panelLiquid biopsy

Identifiers

PMID39928192
PMCPMC11811313

What OpenQuestion holds

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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.