 There is redemonstration of postoperative changes from prior left paramedian posterior fossa resection with minimal marginal FLAIR hyperintensity cerebellum resection site. There is no pathological enhancement identified. Previous linear and curvilinear enhancement along the resection site is difficult to appreciate on the current postcontrast images secondary to slice selection and lack of coronal images. There is unchanged subtle focus of T2/FLAIR hyperintensity in the left thalamus.The ventricles and sulci are stable, slightly prominent for the patient's stated age. 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. Asymmetric signal is again seen along the left petrous apex, likely relating to fluid within asymmetrically pneumatized air cells.
Stable appearance of postoperative changes without MR evidence of recurrent tumor.