Esthesioneuroblastoma

The biologic behavior of esthesioneuroblastoma in seven patients, treated from 1978 to 1989, is reviewed. The patients were initially treated with surgical resection (2 cases), radiation alone (1 case) or a combination of radiation and surgery (4 cases). The radiation dose ranged from 30 to 62 Gy. Operations were performed via a transmaxillary approach (2 cases), lateral rhinotomy approach (3 cases) and craniofacial approach (1 case). Four of the seven patients experienced local recurrence, occurring after disease-free intervals as long as 6 years. The other three patients died of distant metastasis within one year after initial treatment. The effectiveness of radiation therapy varied, and in some patients a dose of 60 Gy was not enough to control microscopic disease. One patient developed bone marrow metastases which was fatal due to the ensuing pancytopenia. One patient developed a brain metastasis. Hyams' histopathologic staging of the tumor appeared to be related to prognosis. (orig.)