Teenager who had thoracic surgery a week ago and now has sepsis

MRI of infective endocarditis of the brain and CT of infective endocarditis of the spleen and kidneys
Coronal T1 MRI with contrast of the brain (above) shows multiple small enhancing lesions in the brain and one large ring enhancing lesion in the right hemisphere of the brain. Coronal CT with contrast of the abdomen (below) shows multiple peripheral low density wedge shaped lesions in the spleen and both kidneys.

The diagnosis was infective endocarditis leading to cerebral abscess and splenic abscess and renal abscess.