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  • Title: Definitive radiation therapy for extramammary Paget's disease.
    Author: Hata M, Koike I, Wada H, Miyagi E, Odagiri K, Minagawa Y, Kasuya T, Kaizu H, Inoue T.
    Journal: Anticancer Res; 2012 Aug; 32(8):3315-20. PubMed ID: 22843908.
    Abstract:
    BACKGROUND: Extramammary Paget's disease (EMPD) is frequently inoperable because of old age and/or coexisting disease. We therefore reviewed the efficacy and toxicity of radiation therapy for EMPD. PATIENTS AND METHODS: Fourteen patients with EMPD underwent definitive radiation therapy. Three patients had regional lymph node metastases before radiation therapy, but none had distant metastasis. Total doses of 52-80.2 Gy (median=60.6 Gy) were delivered to tumor sites in 26-43 fractions (median=33 fractions). RESULTS: Four patients had developed recurrence at a median follow-up period of 47 months. The 5-year local control and disease-free rates were 71% and 63%, respectively. Two patients died of old age and renal failure at 6 and 51 months, respectively, after irradiation. The 5-year disease-free, cause-specific and overall survival rates were 46%, 100% and 79%, respectively. No therapy-related toxicities of grade 3 or greater were observed. CONCLUSION: Radiation therapy is effective and safe, and appears to offer a curative treatment option for patients with EMPD.
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