Clinical question: Postop evaluation. Signs and symptoms: Status post craniotomy, tumor resection. Pre- and post enhanced brain MRI:Examination is a status post left posterior parietal craniotomy for removal of tumor. Expected postoperative changes and including small amount of epidural serosanguineous/air collection under the craniotomy flap measuring maximum of 6 mm in thickness with subtle mass effect is noted. A mixed signal intensity surgical cavity containing a small amount of air at the surgical site measures approximately 21 x 18 mm in transaxial dimensions. The expected blood product within the surgical cavity precludes precise assessment for presence of abnormal enhancement on this initial postoperative exam. Further follow-up is needed to assess for residual or recurrence of tumor.Residual vasogenic edema in the surgical site and its associated mass effect on the trigone of left lateral ventricle demonstrate no significant change since prior study. Ventricular system remains within normal and with maintained midline.
1.Expected postoperative changes of a left superior parietal craniotomy for removal of tumor as detailed.2.Surgical cavity measuring at 21 x 18 mm and with expected internal T1 hyperintensity/blood products preclude assessment for enhancement on this initial study. No convincing evidence of residual tumor/enhancement, however follow-up is needed.3.Residual vasogenic edema and associated mass effect demonstrate no significant change since prior exam.