History of lateral and third ventriculomegaly. History of prematurity, born at 28 wk station age. Also, history of tracheal esophageal fistula and esophageal atresia; status post repair. On antibiotics for Enterococcus bacteremia. Minimal susceptibility effect is present in the occipital horns of the lateral ventricles, are reflective of blood products from previous hemorrhage. There is mild dilatation of the third and lateral ventricles. The third ventricle measures in width up to 12 mm, which is similar to the previous ultrasound from March 2016. The fourth ventricle is normal size. The sulci are prominent, especially anteriorly. There is no midline shift or brain herniation. There is no acute infarct or other parenchymal signal abnormality. While the degree of myelination seems appropriate for the adjusted gestational age, overall cerebral white-matter volume is diminished which probably also explains the mild, diffuse thinning of the otherwise completely formed corpus callosum. The major intracranial vascular flow voids are preserved.
1. Trace layering chronic intraventricular blood products.2. Mild lateral and third ventriculomegaly is not significantly changed since the previous ultrasound. This may, at least in part, reflect the cerebral white-matter volume which is globally diminished. There may also be a component of benign enlargement of subarachnoid spaces, which should resolve by two years of age. Follow up imaging may be obtained as clinically indicated.