Infected subdural hematoma in an infant.

We report the case of a 1-year-old boy with an infected subdural hematoma due to Streptococcus pneumoniae identified by latex agglutination test and polymerase chain reaction amplification of a bacteria-specific gene. The present case demonstrated the need to include infected subdural hematoma in the differential diagnosis of suspected subdural empyema, and suggested the usefulness of combining these methods to identify a causative organism.