53 year old female with AML status post transplant with mental status changes, known subdural hemorrhage. Redemonstration of thin subdural blood products along the posterior falx cerebrum and tentorium appearing similar to the prior exam. No new focus of hemorrhage is identified.Additional subdural collections seen along the convexities on prior MRI of 4/7/2012 are not as well visualized on this exam.There is no evidence of mass effect, midline shift or edema. The gray-white matter differentiation is grossly preserved.Asymmetry of the lateral ventricles with the right lateral ventricle appearing significantly larger than the left, unchanged from the exam on 6/2009. The remaining cortical sulci and basal cisterns are normal in size and configuration.The calvaria and skull base are radiographically normal. Signal abnormality reported on prior MRI is not as well appreciated on this CT study due to technical limitation of CT.Mucosal thickening of the maxillary, ethmoid and right sphenoid sinuses. The mastoid air cells and middle ear cavities also appear partially opacified, unchanged from the prior exam.
1. Small subdural hematomas appear grossly unchanged as compared to the prior exam. No new focus of hemorrhage is identified. 2. Stable moderate paranasal sinus, middle ear cavity and mastoid opacification.