Restaging olfactory neuroblastoma Face: Again seen are post-operative findings related to right medial maxillectomy and right anterior and posterior ethmoidectomy. There is no significant change in the enhancement within the right frontoethmoid treatment bed with small areas of low T2 signal. There is persistent mucosal thickening in the right maxillary sinus, slightly decreased in the interval. There is no new or enlarging mass. No new enhancement or mass involving the orbits. There is leftward nasal septal deviation. There is a subcentimeter Thornwaldt or nasopharyngeal retention cyst. There is a nonspecific 10 mm right level 2 lymph node which is not significantly changed since at least CT dated 10/30/2015 and favored to be reactive. Additional small scattered cervical lymph nodes are also nonspecific. No significant cervical lymphadenopathy by size criteria. Evidence of right thyroid lobectomy also noted.Brain: There is no evidence of intracranial extension of tumor. There is an unchanged prominent perivascular space in the right basal ganglia. The brain parenchyma otherwise appears unremarkable and there is no evidence of acute infection or abnormal intracranial enhancement. 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.
1. No significant change in findings related to right sinonasal surgery with stable enhancement and focus of T2 hypointensity in the right superior anterior ethmoid surgical bed. These findings are nonspecific with possibility of posttreatment change versus stable small residual tumor. PET may be useful for further evaluation.2. No evidence of intracranial tumor.