Evidence map›Paper›PMID 32654359›Full record

ArticleLiver international : official journal of the International Association for the Study of the Liver2020

Liver histopathology in severe COVID 19 respiratory failure is suggestive of vascular alterations.

Aurelio Sonzogni, Giulia Previtali, Michela Seghezzi, Maria Grazia Alessio, Andrea Gianatti, Lisa Licini, Denise Morotti, Pietro Zerbi, Luca Carsana, Roberta Rossi and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in Liver international : official journal of the International Association for the Study of the Liver, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 172 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
172citing papers in PubMed, 5 pooled it
6.0field-weighted citation impact, top 3% 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

172 citing papers in PubMed, 5 syntheses or guidelines pooled it, 270 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. COVID-19, the disease that changed the world.Medicine and pharmacy reports · 2026
    Review
  7. Article
  8. Article
  9. COVID-19 Infection, Drugs, and Liver Injury.Journal of clinical medicine · 2025
    Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. COVID-19-associated secondary sclerosing cholangitis with liver transplantation.Virchows Archiv : an international journal of pathology · 2024
    Article
  19. Observational
  20. Review

112 more citing papers are in PubMed but not listed here.

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 at 3 institutions in 1 country.

Aurelio SonzogniDepartment of Pathology, Papa Giovanni XXIII Hospital, Bergamo, Italy.ORCID https://orcid.org/0000-0001-5001-9533
Giulia PrevitaliDepartment of Laboratory Medicine, Papa Giovanni XXIII Hospital, Bergamo, Italy.ORCID https://orcid.org/0000-0003-3837-6890
Michela SeghezziDepartment of Laboratory Medicine, Papa Giovanni XXIII Hospital, Bergamo, Italy.ORCID https://orcid.org/0000-0002-6642-8937
Maria Grazia AlessioDepartment of Laboratory Medicine, Papa Giovanni XXIII Hospital, Bergamo, Italy.ORCID https://orcid.org/0000-0002-3567-7332
Andrea GianattiDepartment of Pathology, Papa Giovanni XXIII Hospital, Bergamo, Italy.ORCID https://orcid.org/0000-0003-2303-7394
Lisa LiciniDepartment of Pathology, Papa Giovanni XXIII Hospital, Bergamo, Italy.
Denise MorottiDepartment of Pathology, Papa Giovanni XXIII Hospital, Bergamo, Italy.
Pietro ZerbiDepartment of Pathology, Luigi Sacco Hospital, Milano, Italy.ORCID https://orcid.org/0000-0001-7611-2605
Luca CarsanaDepartment of Biomedical and Clinical Sciences, University of Milan, Milano, Italy.ORCID https://orcid.org/0000-0002-8242-0118
Roberta RossiDepartment of Biomedical and Clinical Sciences, University of Milan, Milano, Italy.
Eleonora LauriDepartment of Pathology, Luigi Sacco Hospital, Milano, Italy.
Alessandro PellegrinelliDepartment of Biomedical and Clinical Sciences, University of Milan, Milano, Italy.
Manuela NebuloniDepartment of Pathology, Luigi Sacco Hospital, Milano, Italy.ORCID https://orcid.org/0000-0002-2773-734X
Ospedale Papa Giovanni XXIII · ITUniversity of Milan · ITLuigi Sacco Hospital · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

SARS2-CoV-2 breakout in Italy caused a huge number of severely ill patients with a serious increase in mortality. Although lungs seem to be the main target of the infection, very few information are available about liver involvement, possibly evocating a systemic disease. Post-mortem wedge liver biopsies from 48 patients died from severe pulmonary COVID-19 disease with respiratory failure were collected from two main hospitals in northern Italy. No patient had clinical symptoms of liver disease or signs of liver failure before and during hospitalization; for each of them liver function tests were available. All liver samples showed minimal inflammation features. Histological pictures compatible with vascular alterations were observed, characterized by increase in number of portal vein branches associated with lumen massive dilatation, partial or complete luminal thrombosis of portal and sinusoidal vessels, fibrosis of portal tract, focally markedly enlarged and fibrotic. SARS-CoV-2 was found in 15 of 22 samples tested by in situ hybridization method. Our preliminary results confirm the clinical impression that liver failure is not a main concern and this organ is not the target of significant inflammatory damage. Histopathological findings are highly suggestive for marked derangement of intrahepatic blood vessel network secondary to systemic changes induced by virus that could target not only lung parenchyma but also cardiovascular system, coagulation cascade and endothelial layer of blood vessels. It still remains unclear if the mentioned changes are directly related to virus infection or if SARS-CoV-2 triggers a series of reactions leading to striking vascular alterations.

Indexed as

AdultAgedAged, 80 and overBetacoronavirusCoronavirus InfectionsCOVID-19FemaleHumansLiverMaleMiddle AgedPandemicsPneumonia, ViralPortal VeinRespiratory InsufficiencySARS-CoV-2liver histopathologyliver morphology in COVID 19 diseaseSARS-Cov-2 infection and liver biopsy

Identifiers

PMID32654359
PMCPMC7404964
OpenAlexW3042066663

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.