Female 74 years old Reason: Assess for etiology of AMS. Has AML,CLL, sz hx, s/p induction chemo, now with neutropenic sepsis high fevers. History: No longer following commands, clonus, warm extremities, nystagmus. There are bilateral subdural collections, most prominent along the frontal lobes measuring up to 5 mm in thickness. These collections do not suppress completely on FLAIR and do not diffusion restrict. There is mild associated dural thickening. There is no abnormal intracranial enhancement to suggest infection. There is no evidence of intracranial hemorrhage or acute infarct. The brain parenchyma appears unremarkable. Unchanged partially empty sella. Pituitary gland is otherwise within normal limits. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.
1.No definite evidence of an intracranial infectious process.2.Small bilateral subdural collections, new since the prior exam, which could represent proteinaceous hygromas or possibly late subacute to chronic hematomas.