[Resection and free flap repair of recurrent maxillofacial and paranasal sinus skull base malignant tumor: report of 9 cases].

To investigate the treatment method and effect of surgical resection and free flap repair of recurrent malignant tumors of maxillofacial paranasal sinus and skull base. The clinical data of 9 patients with recurrent maxillofacial paranasal sinus and skull base malignant tumors who underwent surgical resection and free flap repair in the Department of Otorhinolaryngology Head and Neck Surgery of Shandong Provincial Hospital from August 2009 to May 2019 were analyzed retrospectively, including 5 males and 4 females, aged 32-69 years. There were 4 cases of squamous cell carcinoma, 3 cases of adenoid cystic carcinoma, 1 case of myoepithelial carcinoma and 1 case of malignant fibrous histiocytoma. All patients were repaired with anterolateral femoral flap. The treatment process and postoperative effect were analyzed by descriptive statistics. All patients were followed up from 16 months to 6 years. There were 6 cases of recurrence after operation, including 1 case of local recurrence and 5 cases of skull base and craniocerebral recurrence. The median tumor free survival time of recurrent patients was 35 months. Surgical resection and free flap repair can effectively prolong the life of patients with recurrent maxillofacial paranasal sinus and skull base malignant tumors.