Facial paralysis after superselective intra-arterial chemotherapy via the middle meningeal artery in maxillary cancer.

Previous studies have suggested that the severity of facial paralysis after superselective intra-arterial chemotherapy (SSIAC) is usually mild. Here we present two cases of facial paralysis after SSIAC via the middle meningeal artery (MMA). In case 1, the patient completely recovered from his facial paralysis (to H-B grade I) in 6 months after the onset of paralysis. However, in case 2, his facial movement remained at House-Brackmann (H-B) grade IV with severe synkinesis. We must be careful that SSIAC via the MMA may potentially increase the risk of facial paralysis.