History of brain abscess related to mastoiditis, status post resection: headaches and pain behind the right eye. There are unchanged postoperative findings related to prior right tympanomastoidectomy and temporal craniotomy. There is unchanged high T2 signal within the mastoidectomy bowl. There is a small area of encephalomalacia in the inferior right temporal lobe, but no evidence of abscess or mass lesions. There is no evidence of acute hemorrhage or infarction. 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 orbital contents are grossly unremarkable. There is mild mucosal thickening in the bilateral maxillary and sphenoid sinuses. The scalp soft tissue appears unchanged, with a focal subcentimeter fat-signal structure in the right temporal fossa.
1. Postoperative findings related to right mastoidectomy and temporal craniotomy without evidence of intracranial abscess or mass lesions.2. A focal subcentimeter fat-signal structure in the right temporal fossa is of uncertain significance, perhaps postoperative in nature.