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- W2109583548 abstract "Nasopharyngeal carcinoma (NPC) is treated primarily by radiotherapy. Marginal miss after radiotherapy is a potential cause for treatment failure in NPC. Anterior marginal miss after irradiation results in recurrent tumors in the nasal cavity outside the nasopharynx. From 1991 to January 1997, 6 recurrent NPCs arising in the anterior marginal miss zone after radiotherapy were confirmed by pathologic and radiologic evaluation. One patient had infiltrating growth of the original NPC tumor into the anterior part of nasal septum, and the other 5 had microscopic extensions from the original NPC tumors into the nasal cavity that were beyond detection by endoscopy or CT scan. In some cases the tumors extended further to include the hard palate or the lacrimal sac. Medial maxillectomy and partial maxillectomy with or without resection of the hard palate were necessary to encompass the extent of the tumors. Surgical margins were free of cancer cells in 5 patients. No further treatment was given in these 5 patients. Another patient with tumor extending to the lacrimal sac received postoperative radiotherapy. Five of the 6 patients survived with no evidence of disease for 8 to 65 months. One patient had distant metastasis 14 months after surgery but was free from tumor at the primary site. Radical surgery can result in good and sustained local control for anterior marginal miss of NPC after radiotherapy." @default.
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- W2109583548 date "1999-11-01" @default.
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- W2109583548 title "Salvage surgery for recurrent nasopharyngeal carcinoma in anterior marginal miss after radiotherapy" @default.
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- W2109583548 doi "https://doi.org/10.1016/s0194-5998(99)70069-0" @default.
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