Unexpected Origins: A Case Report of Escherichia coli-Linked Cerebral Abscess in an Adult.

Brain abscesses in patients with congenital heart disease (CHD), particularly cyanotic CHD, present significant morbidity and mortality risks. While  is a known neonatal meningitis pathogen, its involvement in adult intracranial abscesses is rare. This report details a 36-year-old female with an uncorrected ventricular septal defect (VSD) and Eisenmenger syndrome, presenting with neurological symptoms.