Evidence map›Paper›PMID 33533174›Full record

ArticleThoracic cancer2021

The landscape of small cell lung cancer metastases: Organ specificity and timing.

Zsolt Megyesfalvi, Bernadett Tallosy, Orsolya Pipek, Janos Fillinger, Christian Lang, Thomas Klikovits, Anna Schwendenwein, Mir Alireza Hoda, Ferenc Renyi-Vamos, Viktoria Laszlo and 3 more

Abstract read
In one paragraph

Article in Thoracic cancer, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing 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

30 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  7. Different approach to M descriptor for future staging of oligometastatic disease in SCLC: A cross-sectional survival analysis.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
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  11. Metastatic organotropism in small cell lung cancer.bioRxiv : the preprint server for biology · 2025
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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

13 authors.

Zsolt MegyesfalviDepartment of Thoracic Surgery, Semmelweis University and National Institute of Oncology, Budapest, Hungary.
Bernadett TallosyDepartment of Thoracic Surgery, Semmelweis University and National Institute of Oncology, Budapest, Hungary.
Orsolya PipekDepartment of Physics of Complex Systems, Eötvös Loránd University, Budapest, Hungary.
Janos FillingerDepartment of Thoracic Surgery, Semmelweis University and National Institute of Oncology, Budapest, Hungary.
Christian LangDepartment of Thoracic Surgery, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.
Thomas KlikovitsDepartment of Thoracic Surgery, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.
Anna SchwendenweinDepartment of Thoracic Surgery, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.
Mir Alireza HodaDepartment of Thoracic Surgery, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.
Ferenc Renyi-VamosDepartment of Thoracic Surgery, Semmelweis University and National Institute of Oncology, Budapest, Hungary.
Viktoria LaszloNational Koranyi Institute of Pulmonology, Budapest, Hungary.
Melinda RezeliDepartment of Biomedical Engineering, Lund University, Lund, Sweden.
Judit MoldvayNational Koranyi Institute of Pulmonology, Budapest, Hungary.ORCID 0000-0001-9425-1748
Balazs DomeDepartment of Thoracic Surgery, Semmelweis University and National Institute of Oncology, Budapest, Hungary.ORCID 0000-0001-8799-8624

Funding

Austrian Science Fund FWF I3522Austrian Science Fund FWF I3977Austrian Science Fund I4677Austrian Science Fund FWF I 3522Hungarian Academy of Sciences Bolyai Research ScholarshipHungarian National Research, Development and Innovation Office K129065Hungarian National Research, Development and Innovation Office KH130356Hungarian National Research, Development and Innovation Office KNN121510Hungarian National Research, Development and Innovation Office NAP2-2017-1.2.1- NKP-0002Hungarian National Research, Development and Innovation Office NVKP_16-1-2016-0004New National Excellence Program of the Ministry for Innovation and Technology UNKP-19-4New National Excellence Program of the Ministry for Innovation and Technology UNKP-20-3Open Access funding was provided by Semmelweis University (SE).
6 · The paper itself

Abstract

backgroundEarly metastasis is a hallmark of small cell lung cancer (SCLC). However, the mechanisms and resulting patterns of SCLC dissemination are unclear. Our aim was thus to investigate the organ specificity and timing of blood-borne metastases in a comprehensive large cohort of SCLC patients.

methodsIn this retrospective non-interventional cross-sectional study of 1009 Caucasian SCLC patients, we investigated the correlation between the distinct locations of the primary tumor and metastatic sites.

resultsThe onset of bone (p < 0.001), brain (p < 0.001), and pericardial (p = 0.02) metastases were late events, whereas adrenal gland (p = 0.005) and liver (p < 0.001) metastases occurred earlier. No significant difference was found in the distribution of early versus late metastases when comparing central and peripheral primary tumors. Patients with bone metastases had a higher than expected likelihood of having liver metastases, while brain metastases tended to appear together with adrenal gland metastases. Pleural and both lung and pericardial metastases also tended to co-metastasize together more frequently than expected if metastatic events occurred independently. Notably, patients with central primary tumors had decreased median overall survival (OS) compared to those with peripheral tumors, although this tendency does not appear to be significant (p = 0.072).

conclusionOur results are suggestive for particular site- and sequence-specific metastasis patterns in human SCLC. SCLC bone metastases tend to appear together with liver metastases, while brain metastases occur together with adrenal gland metastases. Better understanding of metastasis distribution patterns might help to improve the diagnosis and therapeutic decision-making in SCLC patients.

Indexed as

AdultAgedAged, 80 and overCross-Sectional StudiesFemaleHumansLung NeoplasmsMaleMiddle AgedNeoplasm MetastasisOrgan SpecificityRetrospective StudiesSmall Cell Lung Carcinomametastasis patternsmall cell lung cancersurvival

Identifiers

PMID33533174
PMCPMC7952793

What OpenQuestion holds

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LicenceCC BY
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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.