Evidence map›Paper›PMID 33165892›Full record

SynthesisHistology and histopathology2021

Histopathological prognostic factors for colorectal liver metastases: A systematic review and meta-analysis of observational studies.

Cássio Virgílio Cavalcante de Oliveira, Gilton Marques Fonseca, Jaime Arthur Pirola Kruger, Evandro Sobroza de Mello, Fabricio Ferreira Coelho, Paulo Herman

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Histology and histopathology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.8field-weighted citation impact, top 26% 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

3 citing papers in PubMed, 10 citations in OpenAlex.

  1. METACHRONOUS COLORECTAL LIVER METASTASIS.Arquivos brasileiros de cirurgia digestiva : ABCD = Brazilian archives of digestive surgery · 2025
    Review
  2. Review
  3. 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

6 authors at 3 institutions in 1 country.

Cássio Virgílio Cavalcante de OliveiraDigestive Surgery Division, Department of Gastroenterology, University of São Paulo Medical School (USP), São Paulo, Brazil.
Gilton Marques FonsecaDigestive Surgery Division, Department of Gastroenterology, University of São Paulo Medical School (USP), São Paulo, Brazil.
Jaime Arthur Pirola KrugerDigestive Surgery Division, Department of Gastroenterology, University of São Paulo Medical School (USP), São Paulo, Brazil.
Evandro Sobroza de MelloCancer Institute of the State of São Paulo "Octavio Frias de Oliveira" (ICESP), Department of Pathology, University of São Paulo Medical School (USP), São Paulo, Brazil.
Fabricio Ferreira CoelhoDigestive Surgery Division, Department of Gastroenterology, University of São Paulo Medical School (USP), São Paulo, Brazil.
Paulo HermanDigestive Surgery Division, Department of Gastroenterology, University of São Paulo Medical School (USP), São Paulo, Brazil.
Universidade de São Paulo · BRInstituto do Câncer do Estado de São Paulo · BRUniversidade Federal da Paraíba · BR

Funding

- -
6 · The paper itself

Abstract

introductionResection is the mainstay of treatment for colorectal liver metastases (CRLMs). Many different histopathological factors related to the primary colorectal tumour have been well studied; however, histopathological prognostic factors related to CRLMs are still under evaluation.

objectiveTo identify histopathological factors related to overall survival (OS) and disease-free survival (DFS) in patients with resected CRLMs.

methodsA systematic review was performed with the following databases up to August 2020: PubMed, EMBASE, Web of Science, SciELO, and LILACS. The GRADE approach was used to rate the overall certainty of evidence by outcome.

resultsThirty-three studies including 4,641 patients were eligible. We found very low certainty evidence that the following histopathological prognostic factors are associated with a statistically significant decrease in OS: presence of portal vein invasion (HR, 0,50 [95% CI, 0,37 to 0,68]; I²=0%), presence of perineural invasion (HR, 0,55 [95% CI, 0,36 to 0,83]; I²=0%), absence of pseudocapsule (HR, 0,41 [CI 95%, 0,29 to 0,57], p<0,00001; I²=0%), presence of satellite nodules (OR, 0,45 [95% CI, 0,26 to 0,80]; I²=0%), and the absence of peritumoural inflammatory infiltrate (OR, 0,20 [95% CI, 0,08 to 0,54]; I²=0%). Outcome data on DFS were scarce, except for tumour borders, which did not present a significant impact, precluding the meta-analysis.

conclusionOf the histopathological prognostic factors studied, low- to moderate-certainty evidence shows that vascular invasion, perineural invasion, absence of pseudocapsule, presence of satellite nodules, and absence of peritumoral inflammatory infiltrate are associated with shorter overall survival in CRLMs.

Indexed as

Cell DifferentiationColorectal NeoplasmsDisease-Free SurvivalHistological TechniquesHumansInflammationLiver NeoplasmsNeoplasm InvasivenessNeoplasm MetastasisObservational Studies as TopicPortal VeinPrognosisRisk

Identifiers

PMID33165892
OpenAlexW3100760215

What OpenQuestion holds

Textmetadata
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.