Clinical question of corner assess post op. Signs and symptoms: Status post right craniotomy. Nonenhanced head CT:Examination demonstrate expected postoperative changes of a large right-sided suboccipital craniectomy/repair. There is interval removal of previously noted large tumor in the right cerebellopontine angle. Subtle increased density within the right internal auditory canal is present on axial image 8 which may represent minimal residual tumor. Follow-up with an MRI is recommended. Widening of right cerebellopontine angle cistern is as result of prior tumor and postop change. Subtle deformity of the right cerebellum and right aspect of the pons is believed to be result of prior long-standing mass effect from tumor.There is also subtle deviation of the fourth ventricle across the midline to the left as was noted on preoperative study.There is no evidence of parenchymal hemorrhage or edema.Images through supratentorial space demonstrate no definitive evidence of abnormality.
Expected postoperative changes of a large right suboccipital craniectomy and repair repair for removal of tumor.