A case of malignant fibrous histiocytoma of the maxillary sinus, which to our knowledge is the third such report, involved a patient who was seen initially with nasal obstruction, swelling of the face, and visual disturbances. Three months after partial excision of the tumor and radiotherapy and chemotherapy, the patient died of bone and liver metastases. These tumors usually manifest initially with symptoms directly referable to the involved sinus. If there is any evidence of metastatic disease, the prognosis appears to be poor.
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