Objective: To introduce the method of a modified transcranial approach for resection of paranasal sinuses tumors involving the anterior skull base and to address our experience with the approach. Patients and Methods: Ten cases were operated by the approach. Among them, 4 suffered from benign meningeomas, 6 with malignant tumors included one chondrosarcoma, two malignant meningeomas, two olfactory neuroblastomas, and one squamous sarcoma. Of the patients, 4 cases had primary tumor and 6 cases had recurrent tumors. Result: All of the ten cases underwent operation and no postopertion complication occurred. 7 cases have survived for one to four years without tumor recurrence. 3 cases with malignant tumor died of tumor relapse in one to two years. Conclusion: This method significantly has helped to reduce the persistence and recurrence of the disease.
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