Reason: Eval DLBCL. History: DLBCL. There is motion artifact limiting the 3-D T1 postcontrast images. There is redemonstration of enhancement and mild enlargement involving multiple cranial nerves, most conspicuously involving the trigeminal nerves. Involvement of the right internal auditory canal contents is slightly less conspicuous than the remote exam from 3/8/2016. No definite new abnormal enhancement is appreciated.There is a stable right frontal approach Ommaya catheter with interval resolution of previously seen susceptibility relating to pneumocephalus. The ventricles and sulci are stable. There remains a similar extent of confluent T2/FLAIR hyperintensity within the bilateral cerebral white matter. The cisterns remain patent. There is no midline shift or mass effect. There is no diffusion abnormality. No extra-axial fluid collection is identified. Normal flow-voids are demonstrated in the major intracranial vascular structures. The midline structures and craniocervical junction are within normal limits. There is a left maxillary sinus mucosal retention cyst.CERVICAL SPINE
1. No significant interval change in enhancement involving multiple cranial nerves consistent with known lymphomatous involvement. Compared to more remote exam, decreased conspicuity of enhancement in the right internal auditory canal.2. Similar degree of residual enhancement involving the multiple bilateral cervical and visualized upper thoracic nerve roots.2. Stable extent of confluent areas of bilateral cerebral white matter signal abnormality, likely posttreatment changes.