TWO CASES WITH RADIATION-INDUCED CANCERS AFTER RADIATION THERAPY FOR CANCER OF THE MAXILLARY SINUS
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Accession number;04A0146773
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| Title;TWO CASES WITH RADIATION-INDUCED CANCERS AFTER RADIATION THERAPY FOR CANCER OF THE MAXILLARY SINUS |
| Author;
WATANABE NAOHIKO
(Kantorosaibyoin Jibiinkoka)
OKUNO KEIICHIRO
(Kantorosaibyoin Jibiinkoka)
SAKUMA TAKAAKI
(Kantorosaibyoin Jibiinkoka)
NOGUCHI KAZUHIRO
(Kantorosaibyoin Jibiinkoka)
ZUSHO HIROYUKI
(Kantorosaibyoin Jibiinkoka)
MATSUMOTO MANABU
(Showadai Jibiinkoka)
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Journal Title;Head and Neck Cancer
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Journal Code:Y0503A
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ISSN:0911-4335
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VOL.28;NO.1;PAGE.275-280(2002)
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| Figure&Table&Reference;FIG.8, TBL.2, REF.16 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;We experienced 2 patients with malignant non-epithelial tumors that developed following an incubation stage of 10 years or more after radiation therapy for cancer of the maxillary sinus. In Patient 1, the primary cancer was unclear, but it was speculated that this patient had been treated for cancer of the maxillary sinus. In Patient 2, cancer of the maxillary sinus had been treated in our hospital. In Patient 1, the secondary cancer was a malignant histiocytoma of the parapharyngeal space. In Patient 2, the secondary cancer was a spindle cell sarcoma in the maxillary sinus. According to the classification of the probability of radiation-induced cancer after treatment for malignant tomors, the probability was evaluated as A in Patient 2, and B or higher in Patient 1. In the two patients, radiation-induced cancer was strongly suggested. For treatment, extended surgery was indicated, as a rule. In Patient 1, radical neck dissection was performed. In Patient 2, tumorectomy was performed several times. Concerning the prognosis, Patient 1 is alive without cancer, but Patient 2 died of intracranial invasion by tumor. The invasion of the tumor and histological type may have influenced the prognosis. The incidence of radiation-induced cancer is considered to be 1% or less. However, radiation therapy-related late disorder must be considered. (author abst.) |
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