Evidence map›Paper›PMID 41893403›Full record

ArticleTropical medicine and infectious disease2026

Odontogenic Brain Abscess in a Hereditary Haemorrhagic Telangiectasia (HHT) Patient: Case Report with a Comprehensive Literature Review.

Pontus Westerström, Joanna Malgorzata Bivand, Øyvind Kommedal, Birgitta Ehrnström, Joakim Stray Andreassen, Jan Egil Afset

Abstract readCase Reports
In one paragraph

Article in Tropical medicine and infectious disease, 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. Human Oral-AssociatedMicroorganisms · 2026
    Review
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.

Pontus WesterströmDepartment of Medical Microbiology, Clinic of Laboratory Medicine, St. Olavs Hospital, Trondheim University Hospital, 7006 Trondheim, Norway.ORCID 0000-0001-6813-3844
Joanna Malgorzata BivandDepartment of Microbiology, Haukeland University Hospital, 5021 Bergen, Norway.ORCID 0000-0002-3455-463X
Øyvind KommedalDepartment of Microbiology, Haukeland University Hospital, 5021 Bergen, Norway.ORCID 0000-0002-4390-0370
Birgitta EhrnströmDepartment of Infectious Diseases, Clinic of Medicine, St. Olavs Hospital, Trondheim University Hospital, 7006 Trondheim, Norway.ORCID 0000-0003-4233-5725
Joakim Stray AndreassenDepartment of Neurosurgery, Neuroclinic, St. Olavs Hospital, Trondheim University Hospital, 7006 Trondheim, Norway.ORCID 0000-0001-9157-412X
Jan Egil AfsetDepartment of Medical Microbiology, Clinic of Laboratory Medicine, St. Olavs Hospital, Trondheim University Hospital, 7006 Trondheim, Norway.ORCID 0000-0003-2489-4179

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecent diagnostic methods have enabled the detection of often culture-negative pathogens, including anaerobic bacteria from the oral cavity. Characterising the microbial diversity and co-occurrence of bacteria in such infections is important for understanding the molecular pathophysiology in odontogenic brain abscesses. CASE PRESENTATION: We describe a case of polymicrobial odontogenic brain abscess in a 59-year-old man of Vietnamese ethnicity with a documented increased risk of brain abscess due to Hereditary Haemorrhagic Telangiectasia (HHT). The microbiological diagnostic work-up included conventional culture, matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS), targeted 16S rDNA analysis using three broad-range group-specific PCR (polymerase chain reaction) assays and next-generation sequencing (NGS). A literature review was conducted, including database searches for each identified microorganism. Twelve anaerobic bacterial species were detected, among which

conclusionThis is the first report of

Indexed as

16S rRNA gene sequencingArachnia propionicaCampylobacter gracilisCandidatus Saccharibacteria oral taxon 488Capnocytophagacase reportnext-generation sequencingodontogenic brain abscessoral microbiome

Identifiers

PMID41893403
PMCPMC13030233

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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.