Evidence map›Paper›PMID 42440700›Full record

ArticleCase reports in gastrointestinal medicine2026

Colorectal Cancer Arising in a Diverticulum: Report of an Unusual Presentation.

Paulo de Carvalho Contu, Daniel de Carvalho Damin, Camila Leal Guimarães, Beatriz Padoin Camilo, Jordy Guimarães Costa, Rafaella Aléssio Naibo, Beatriz Lima Silveira, Marina Ferreira da Luz

Abstract read
In one paragraph

Article in Case reports in gastrointestinal medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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. Article
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

8 authors.

Paulo de Carvalho ContuDivision of Coloproctology, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil, hcpa.edu.br.ORCID https://orcid.org/0000-0002-6254-2847
Daniel de Carvalho DaminDivision of Coloproctology, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil, hcpa.edu.br.ORCID https://orcid.org/0000-0001-5031-3409
Camila Leal GuimarãesDivision of Coloproctology, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil, hcpa.edu.br.ORCID https://orcid.org/0009-0000-2160-1663
Beatriz Padoin CamiloDepartment of Surgery, Medical School, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil, ufrgs.br.ORCID https://orcid.org/0009-0003-3976-9052
Jordy Guimarães CostaDepartment of Surgery, Medical School, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil, ufrgs.br.ORCID https://orcid.org/0009-0009-2686-4548
Rafaella Aléssio NaiboDepartment of Surgery, Medical School, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil, ufrgs.br.ORCID https://orcid.org/0000-0002-7529-5443
Beatriz Lima SilveiraDepartment of Surgery, Medical School, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil, ufrgs.br.ORCID https://orcid.org/0000-0002-6243-8564
Marina Ferreira da LuzDepartment of Surgery, Medical School, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil, ufrgs.br.ORCID https://orcid.org/0009-0002-4995-772X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The coexistence of diverticulitis and colorectal cancer is rare but clinically significant. We present an unusual case of an elderly patient with recurrent acute diverticulitis, colonic obstruction due to a sigmoid stenosis, in which an adenocarcinoma originated within a diverticulum. This presentation is particularly challenging because the extramural growth pattern within the wall of the pseudodiverticulum, which lacks the muscularis propria layer, facilitates early transmural spread without a significant intraluminal mucosal mass, leading to an advanced diagnosis more frequently. This case underscores the need for high clinical vigilance and specialized radiologic review in patients with complex diverticular disease and unexplained stenosis.

Identifiers

PMID42440700
PMCPMC13333930

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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.