Related Experiment Video
Updated: May 14, 2026

Listeria monocytogenes Infection of the Brain
Published on: October 2, 2018
[Brain abscess - overview]
Olafur Arni Sveinsson1, Hilmir Asgeirsson, Ingvar H Olafsson
1Department of Neurology, Karolinska University Hospital, Stockholm, Sweden. olafur.sveinsson@karolinska.se
Abstract:
Brain abscess is a life threatening illness, demanding rapid diagnosis and treatment. Its development requires seeding of an organism into the brain parenchyma, often in an area of damaged brain tissue or in a region with poor microcirculation. The lesion evolves from a cerebritis stage to capsule formation. Brain abscesses can be caused by contiguous or haematogenous spread of an infection, or by head trauma/ neurosurgical procedure. The most common presentation is that of headache and vomiting due to raised intracranial pressure. Seizures have been reported in up to 50% of cases. Focal neurological deficits may be present, depending on the location of the lesion. Treatment of a brain abscess involves aspiration or excision, along with parenteral antibiotic therapy. The outcome has improved dramatically in the last decades due to improvement in diagnostic techniques, neurosurgery, and broad-spectrum antibiotics. The authors provide an overview of the pathogenesis, diagnosis and management of brain abscesses.
Insights
Brain abscess is a serious brain infection requiring prompt diagnosis and treatment. Advances in diagnostics, surgery, and antibiotics have significantly improved patient outcomes for this life-threatening condition.
Area of Science:
- Neurology
- Infectious Diseases
- Neurosurgery
Context:
- Brain abscess is a severe, life-threatening infection of the brain parenchyma.
- Requires urgent diagnosis and intervention to prevent severe morbidity and mortality.
- Often arises from seeding of microorganisms in compromised brain tissue or areas of poor blood flow.
Purpose:
- To provide a comprehensive overview of brain abscesses.
- To detail the pathogenesis, diagnostic approaches, and management strategies.
- To highlight recent improvements in patient outcomes.
Summary:
- Brain abscess development involves microbial seeding and progression from cerebritis to capsule formation.
- Etiologies include contiguous spread, hematogenous dissemination, trauma, and neurosurgery.
- Common symptoms include headache, vomiting, seizures, and focal neurological deficits.
Impact:
- Effective treatment combines surgical intervention (aspiration/excision) with parenteral antibiotics.
- Improved diagnostic tools, neurosurgical techniques, and broad-spectrum antibiotics have dramatically enhanced outcomes.
- Understanding pathogenesis and early management are crucial for successful treatment of brain abscesses.
More Related Videos
10:38Deciphering and Imaging Pathogenesis and Cording of Mycobacterium abscessus in Zebrafish Embryos
Published on: September 9, 2015
07:26Intracranial Subarachnoidal Route of Infection for Investigating Roles of Streptococcus suis Biofilms in Meningitis in a Mouse Infection Model
Published on: July 1, 2018
Related Concept Videos
Brain Abscess l: Introduction
Bacterial Meningitis II: Pathophysiology
Bacterial Meningitis I: Introduction
Cerebral Edema ll: Pathophysiology
Encephalitis l: Introduction
Encephalitis ll: Pathophysiology