A 33-year-old lady was referred to the Department of Oral and Maxillofacial Surgery of Taleghani hospital in 2008. She complained of firm swelling on the left side of her face with toothache, lacrimation, and nasal stiffness. There was a large mass in the left maxillary sinus with extension to the orbital floor, nasal bone, ethmoid sinus, and infratemporal fossa. The incisional biopsy revealed a neurofibroma of the maxilla. She underwent hemimaxillectomy and simultaneous reconstruction with temporalis-coronoid flap for orbital floor reconstruction. After 2 months' follow-up with no complication, she complained of left globe upward movement during gum chewing. The orbital and visual examinations were otherwise normal. This unusual complication has continued for 4 years with no resolution, although the patient does not worry about it any more.