抄録
Six cases of neurogenous sarcoma (NS) arising from the paranasal sinuses were re viewed. Four patients were females and two were males. Four tumors arose from the maxillary sinus, one from the ethmoid sinus and one from the pterygopalatine fossa. NS is difficult to be diagnosed in its early stage. Diagnosis of benign neurinoma or other sarcoma was made in four of six cases after the first operation or biopsy. Final diagnosis of NS was made when tumors recurred after the first treatment. The prognosis of NS of the paranasal sinuses is poor. Five patients died of recurrence of the disease despite sur gery and/or radiation. The one living patient has unexpectedly responded to chemotherapy. Since NS is difficult to diagnose, recurrence is frequent, and resistive to radiation, careful radical surgery should be done to avoid recurrence.