Evidence map›Paper›PMID 38439038›Full record

ArticleBMC pulmonary medicine2024

Distribution and characteristics of malignant tumours by lung lobe.

Yngvar Nilssen, Odd Terje Brustugun, Lars Fjellbirkeland, Åslaug Helland, Bjørn Møller, Sissel Gyrid Freim Wahl, Steinar Solberg

Open access · goldAbstract read
In one paragraph

Article in BMC pulmonary medicine, 2024. 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
2.9field-weighted citation impact, top 9% 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, 7 citations in OpenAlex.

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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

7 authors at 4 institutions in 1 country.

Yngvar NilssenDepartment of Registration, Cancer Registry of Norway, Box 5313 Majorstuen, Oslo, 0304, Norway.
Odd Terje BrustugunSection of Oncology, Vestre Viken Hospital Trust, Drammen, Norway.
Lars FjellbirkelandInstitute of Clinical Medicine, University of Oslo, Oslo, Norway.
Åslaug HellandInstitute of Clinical Medicine, University of Oslo, Oslo, Norway.
Bjørn MøllerDepartment of Registration, Cancer Registry of Norway, Box 5313 Majorstuen, Oslo, 0304, Norway.
Sissel Gyrid Freim WahlDepartment of Pathology, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway.
Steinar SolbergDepartment of Registration, Cancer Registry of Norway, Box 5313 Majorstuen, Oslo, 0304, Norway. stsg@kreftregisteret.no.
Cancer Registry of Norway · NOUniversity of Oslo · NOOslo University Hospital · NOSt Olav's University Hospital · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe main focus on the characteristics of malignant lung tumours has been the size, position within the lobe, and infiltration into neighbouring structures. The aim of this study was to investigate the distribution and characteristics of malignant tumours between the lung lobes and whether the diagnosis, treatment, and outcome differed based on location.

methodsThis study is based on 10,849 lung cancer patients diagnosed in 2018-2022 with complete data on the location and characteristics of the tumours. The proportions of tumours in each lobe divided by its volume were termed the relative proportion.

resultsThe right upper lobe comprised 31.2% of the tumours and 17.6% of the lung volume. The relative proportion of 1.77 was higher than in the other lobes (p < 0.001). The right middle lobe had a relative proportion of 0.64 but the highest proportion of neuroendocrine tumours (26.1% vs. 15.3 on average). Surgical resection was more often performed in patients with tumours in the lower lobes, and curative radiotherapy was more often performed in the upper lobes. After adjusting for age, sex, stage, and histology, the location of the tumour was found to be a significant independent predictor for resection but not for survival.

conclusionThe main finding of the right upper lobe as a site of predilection for lung cancer is similar to tuberculosis and pneumoconiosis. This may be explained that most of the inhaled air, containing bacilli, inorganic particles or tobacco smoke goes to the upper and right parts of the lung.

Indexed as

Lung NeoplasmsNeuroendocrine TumorsHumansLungEpidemiologyLung cancerLung lobesPathogenesisPneumoconiosisTuberculosis

Identifiers

PMID38439038
PMCPMC10910834
OpenAlexW4392376331

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.