Brain abscess in a patient with atrial septal defect.

Brain abscess rarely occurs in adults with congenital heart disease. A 59-year-old man who presented with headache, fever and stiffness of the neck was reported. The patient had a atrial septal defect with pulmonary hypertension and atrial fibrillation. CT scan of the brain demonstrated an abscess at the right parieto-occipital lobe. The patient was successfully treated with appropriate antibiotics.