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Related Concept Videos

Brain Abscess l: Introduction01:26

Brain Abscess l: Introduction

A brain abscess is a focal, intracerebral infection characterized by a localized collection of pus within the brain parenchyma, resulting from microbial invasion and the body’s inflammatory response. It progresses through stages: early and late cerebritis, followed by early and late capsule formation, reflecting tissue destruction, immune response, and eventual encapsulation.Etiology and PathogenesisCausative organisms vary with source and host factors, often involving polymicrobial infections,...
Acute Pyelonephritis II: Diagnostic Studies and Management01:28

Acute Pyelonephritis II: Diagnostic Studies and Management

Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...
Bacterial Meningitis I: Introduction01:22

Bacterial Meningitis I: Introduction

Bacterial meningitis is a severe, life-threatening inflammation of the meninges, particularly the pia mater and arachnoid mater, affecting the subarachnoid space, ventricles, and cerebrospinal fluid (CSF). If untreated, it can lead to significant neurological complications or death.Causative AgentsCommon pathogens vary with age and immune status. In adults, major organisms include Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae. Streptococcus agalactiae (group B...
Viral Meningitis01:18

Viral Meningitis

Viral meningitis is the most common form of meningitis and is often referred to as aseptic meningitis to indicate the absence of bacterial involvement. It is generally milder than bacterial meningitis, with symptoms including fever, headache, stiff neck, drowsiness, nausea, photophobia, and vomiting. Rarely, more severe manifestations or death may occur. Common causative agents include enteroviruses, particularly coxsackie A and B viruses and echoviruses, all members of the Enterovirus genus...
Acute Pyelonephritis I: Introduction01:27

Acute Pyelonephritis I: Introduction

Pyelonephritis is a bacterial infection that primarily affects the renal parenchyma and collecting system, including the renal pelvis, tubules, and interstitial tissue of one or both kidneys. It can be classified as either acute—a sudden, severe infection—or chronic, which refers to long-term or recurrent kidney infections.The primary cause of acute pyelonephritis (APN) is bacterial infection, with Escherichia coli accounting for approximately 70-80% of cases. Other bacteria, such as Proteus,...
Bacterial Meningitis II: Pathophysiology01:26

Bacterial Meningitis II: Pathophysiology

Bacterial meningitis typically begins when pathogens such as Neisseria meningitidis and Streptococcus pneumoniae colonize the nasopharynx and invade the bloodstream. This process is facilitated by bacterial virulence factors, such as polysaccharide capsules, which resist phagocytosis and complement-mediated killing. Less commonly, bacteria reach the central nervous system via contiguous spread from infections like otitis media or sinusitis, through congenital or acquired dural defects, or...

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Related Experiment Video

Updated: May 16, 2026

A Retrospective Study on Endoscopic Surgery for the Treatment of Paravertebral Abscess in Spinal Tuberculosis Patients
03:47

A Retrospective Study on Endoscopic Surgery for the Treatment of Paravertebral Abscess in Spinal Tuberculosis Patients

Published on: October 25, 2024

Pyogenic brain abscess, a 15 year survey.

Jannik Helweg-Larsen1, Arnar Astradsson, Humeira Richhall

  • 1Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, Denmark. jhelweg@dadlnet.dk

BMC Infectious Diseases
|December 1, 2012
PubMed
Summary

Brain abscess diagnosis and treatment are often delayed due to unspecific symptoms. Poor outcomes in brain abscess patients are linked to low Glasgow Coma Scale scores, comorbidities, and intraventricular rupture.

Related Experiment Videos

Last Updated: May 16, 2026

A Retrospective Study on Endoscopic Surgery for the Treatment of Paravertebral Abscess in Spinal Tuberculosis Patients
03:47

A Retrospective Study on Endoscopic Surgery for the Treatment of Paravertebral Abscess in Spinal Tuberculosis Patients

Published on: October 25, 2024

Area of Science:

  • Neurology
  • Infectious Diseases
  • Neurosurgery

Background:

  • Brain abscess is a life-threatening condition.
  • This study examines clinical aspects of brain abscess in a large hospital cohort.

Purpose of the Study:

  • To assess clinical features and prognostic factors of pyogenic brain abscess.
  • To identify factors associated with poor outcomes in brain abscess patients.

Main Methods:

  • Retrospective review of 102 adult patients with pyogenic brain abscess (1994-2009).
  • Logistic regression analysis to determine prognostic factors for Glasgow Outcome Score (GOS).

Main Results:

  • Many patients lacked classic infection signs (fever, elevated CRP/leukocytosis).
  • Median delay from symptom onset to treatment was 7 days.
  • Low admission Glasgow Coma Scale (GCS), comorbidities, and intraventricular rupture were associated with adverse outcomes (GOS ≤3, mortality).

Conclusions:

  • Clinical signs of brain abscess are often unspecific, leading to diagnostic and treatment delays.
  • Brain abscess continues to be associated with significant morbidity and mortality.
  • Early recognition and intervention are crucial for improving patient outcomes.