Evidence map›Paper›PMID 33552986›Full record

ArticleFrontiers in oncology2020

Establishment of Criteria for Molecular Differential Diagnosis of MPLC and IPM.

Xiaohui Wang, Yuan Gong, Jianfei Yao, Yan Chen, Yuemin Li, Zhen Zeng, Yinying Lu, Lele Song

RetractedOpen access · goldAbstract readRetracted Publication
In one paragraph

Article in Frontiers in oncology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 16% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Novel causes and assessments of intrapulmonary metastasis.Biochemistry and biophysics reports · 2025
    Article
  3. Article
  4. Genomic Staging of Multifocal Lung Squamous Cell Carcinomas Is Independent of the Comprehensive Morphologic Assessment.Journal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer · 2024
    Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Xiaohui WangDepartment of Oncology, The Fifth Medical Center of the Chinese People's Liberation Army (PLA) General Hospital, Beijing, China.
Yuan GongDepartment of Gastroenterology, The Second Medical Center of the Chinese PLA General Hospital, Beijing, China.
Jianfei YaoDepartment of Oncology, The Fifth Medical Center of the Chinese People's Liberation Army (PLA) General Hospital, Beijing, China.
Yan ChenDepartment of Oncology, The Fifth Medical Center of the Chinese People's Liberation Army (PLA) General Hospital, Beijing, China.
Yuemin LiDepartment of Radiotherapy, The Eighth Medical Center of the Chinese PLA General Hospital, Beijing, China.
Zhen ZengDepartment of Oncology, The Fifth Medical Center of the Chinese People's Liberation Army (PLA) General Hospital, Beijing, China.
Yinying LuDepartment of Oncology, The Fifth Medical Center of the Chinese People's Liberation Army (PLA) General Hospital, Beijing, China.
Lele SongDepartment of Oncology, The Fifth Medical Center of the Chinese People's Liberation Army (PLA) General Hospital, Beijing, China.
Chinese People's Liberation Army · CNChinese PLA General Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundsDifferential diagnosis of multiple primary lung cancer (MPLC) and intrapulmonary metastasis (IPM) is one difficulty in lung cancer diagnosis, and crucial for establishment of treatment strategies and prognosis prediction. This study aims to establish the criteria for molecular differential diagnosis of synchronous MPLC and IPM by the next-generation sequencing (NGS) method.

methodsTraining cohort included 30 synchronous MPLC (67 samples) patients and 5 synchronous IPM (13 samples) patients with adenocarcinoma. Criteria of MPLC/IPM differential diagnosis were established by results from a NGS-based 605-gene panel test. Subsequently, 16 patients (36 samples) were recruited as the validation cohort to verify the criteria.

resultsIPM lesions showed a high degree of mutation overlap with an average concordance rate of 60.2% (range: 15.8%-91.7%). IPM lesions had at least three common alterations, including both high-frequency driver gene alterations and low-frequency gene alterations. In contrast, the average concordance rate of MPLC was 11.0% (range: 0.0%-100.0%), among which 66.7% (20/30) of patients had no common alterations (concordance rate: 0%). In the remaining 10 patients, 9 had only one overlapping alteration while 1 had two overlapping alterations, in which 6 patients had EGFR L858R overlapping mutation. Alterations were classified into trunk, shared, and branch subtypes. Branch alterations accounted for 94.4% of mutations in MPLC, while accounted for only 45.0% in IMP. In contrast, the ratio of trunk (38.3%) and shared (16.7%) alterations in IPM was significantly higher. The criteria for differentiating MPLC from IPM using 605-gene panel was established: 1) MPLC can be interpreted if no overlapping alterations is found; 2) MPLC is recommended if one overlapping high-frequency drive gene alteration and/or one overlapping low-frequency gene alteration are/is found; 3) IPM can be interpreted if more than three common alterations are found. Subsequently, 16 patients were recruited as the validation cohort in the single-blind manner to verify the criteria, and 14 MPLC and 2 IPM were identified, which was 100% consistent with the results from independent imaging and pathological diagnosis.

conclusionsNGS detection can distinguish synchronous MPLC from IPM and is a useful tool to assist differential diagnosis.

Indexed as

driver geneepidermal growth factor receptor (EGFR)intrapulmonary metastasis (IPM)multiple primary lung cancer (MPLC)next-generation sequencing (NGS)non-small cell lung cancer (NSCLC)

Identifiers

PMID33552986
PMCPMC7860975
OpenAlexW3122802115

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.