Bacteroides brain abscess

A *Bacteroides* brain abscess is a localized, life-threatening intracranial infection within the cerebral parenchyma caused by obligate anaerobic, gram-negative bacilli of the genus *Bacteroides*

A *Bacteroides* brain abscess is a localized, life-threatening intracranial infection within the cerebral parenchyma caused by obligate anaerobic, gram-negative bacilli of the genus *Bacteroides*

This central nervous system pathology predominantly develops in adults following direct contiguous spread from chronic otogenic infections (such as chronic otitis media or mastoiditis), sinogenic or odontogenic foci, neurosurgical contamination, or via hematogenous dissemination from distant sites

This central nervous system pathology predominantly develops in adults following direct contiguous spread from chronic otogenic infections (such as chronic otitis media or mastoiditis), sinogenic or odontogenic foci, neurosurgical contamination, or via hematogenous dissemination from distant sites Patients commonly present with manifestations of increased intracranial pressure and focal tissue destruction, including headache, fever, focal neurological deficits, altered mental status, and seizure...

Pathophysiologically, the infection progresses from an early, unencapsulated cerebritis with vascular congestion and tissue necrosis into a walled-off, purulent collection enveloped by a vascularized, collagenous capsule surrounded by vasogenic cerebral edema

Pathophysiologically, the infection progresses from an early, unencapsulated cerebritis with vascular congestion and tissue necrosis into a walled-off, purulent collection enveloped by a vascularized, collagenous capsule surrounded by vasogenic cerebral edema