Brain abscess

Question 1

What are some causes of brain abscess

Answer 1

extension of sepsis from middle ear/sinuses

trauma or surgery to the scalp

penetrating head injuries

embolic events from endocarditis

Question 1

What do the presenting symptoms of a brain abscess depend on

Answer 1

upon site of abscess
– eg if in critical area it will present earlier

Question 2

What may someone with a brain abscess present with

Answer 2

Headache - often dull, persistent

fever - may be absent

focal neurology – oculomotor/abducens nerve palsy secondary to raised intracranial pressure

nausea
papilloedema
seizures

Question 3

What investigations are required

Answer 3

assessment of the patient including imaging with the CT scanner

Question 4

What management is required

Answer 4

Surgery
-craniotomy and abscess cavity is debrided

IV Abx - CEPHALOSPORIN AND METRONIDAZOLE

Intracranial pressure management - dexamethasone