6-month-old male with history intraventricular hemorrhage. Rule out hydrocephalus. Slight decrease in size of extra axial fluid which remains moderate on the left and mild on the right. Slight decrease in size of left porencephalic cyst. Prominent ventricular volumes are stable except in the frontal horn of the left lateral ventricle which has increased in size secondary to ex vacuo dilatation as adjacent left cerebral mass containing internal calcification has decreased in size.No new hemorrhage identified.Within the porencephalic cyst anteriorly (image 29, series 2) there is a rounded density that appears slightly larger than the prior study. This may represent organizing hematoma and can be further evaluated with an MRI. The calvaria and skull base are radiographically normal.
1. Decrease in size of extra-axial fluid collection, porencephalic cyst, and left cerebral mass representing hematoma2. Rounded density within the anterior aspect of the porencephalic cyst is slightly larger than the prior study and may represent an organizing hematoma. Further evaluation may be performed with a brain MRI.