Caused by one of three methods:
Hematogenous spread (33%)
Contiguous infection from middle ear, sinus, teeth (33%)
Direct implantation by surgery or penetrating trauma (10%)
Microbiology
Streptococci in 50% of cases
Anaerobes and Gram-negative rods are typical pathogens
Staph is involved with direct implantation cases
Hematogenous spread (33%)
Contiguous infection from middle ear, sinus, teeth (33%)
Direct implantation by surgery or penetrating trauma (10%)
Streptococci in 50% of cases
Anaerobes and Gram-negative rods are typical pathogens
Staph is involved with direct implantation cases
Brain abscess
CVA
Subdural empyema
Meningitis, encephalitis
Coma
Malignancy
Encephalitis
Intracranial hemorrhage