[Surgical treatment of space-occupying lesions in the nasal cavity and paranasal sinus involving the skull base].

This paper reports 29 cases of space-occupying lesions in the nasal cavities and the paranasal sinuses. Of them, 12 were benign and 17 malignant. They were all surgically treated, 17 by lateral rhinotomy, 6 by combined cranio-nasal approaches, 3 by maxillectomy and evisceration of the orbit, 1 by transfrontal and 1 by midfacial degloving approaches, respectively. The regional chemotherapy was administered to a case via external carotid artery after neck dissection. Among these cases, 18 of the skull defects were rehabilitated. The repairing materials included the autologous perpendicular plate of the ethmoid bone, the vomer, the septal cartilage, the middle turbinate and the internal laminae of the frontal bone or sinus. The meningeal defects in 14 cases were repaired using autologous muscle, fascia, galea aponeurotica. Except for one case of postoperative cerebrospinal rhinorrhea due to improper surgical approach, no cases had postoperative complications.