A 6-month-old Female with Fever and Increased Head Circumference.

Brain abscesses, while a fairly rare occurrence in the pediatric population, can be associated with significant morbidity and mortality. Staphylococcus aureus is a rare cause of intracranial abscess that is generally seen in pediatric patients who have had traumatic injury or neurosurgical intervention. We present the case of a 6-month-old patient who was found to have a large brain abscess secondary to methicillin-sensitive Staphylococcus aureus (MSSA), despite no clear precipitating factors. She underwent percutaneous drainage and IV antibiotic treatment with gradual recovery but as-of-yet undetermined developmental sequelae.