Long-term prognosis after surgical excision of basal cell carcinoma: A single institutional study in Japan

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Conventional surgical excision (SE) is commonly used to treat patients with basal cell carcinoma (BCC). There have been few studies, however, evaluating the long-term prognosis of Japanese patients receiving SE for treatment of BCC. The purpose of this retrospective study is to determine the effectiveness of SE in accomplishing the long-term cure of patients with BCC. We enrolled 290 patients with primary BCC who underwent SE during 1998–2006. The prognosis of treated patients was subsequently investigated using data obtained through our hospital cancer registration section. In total, 205 patients (70.7%) were treated for BCC lesions located on the face. The mean tumor diameter of excised lesions was 12.8 mm. A majority of patients in the study (256 patients, 88.3%) had pigmented BCC. The mean surgical margin at SE was 3.8 mm. Two patients developed local recurrence during the postoperative course of 290 patients (mean duration, 80 months). One patient developed recurrent disease 21 months after surgery, and the other developed recurrence at 66 months after surgery. The 5- and 10-year cumulative recurrence rates were 0.4% and 0.8%, respectively. In conclusion, this study demonstrated that long-term high cure rates of BCC in Japanese patients may be achieved through conventional SE. A better prognosis was obtained in this study compared with similar studies reported previously in Caucasians. This may be related to the predominance of pigmented versus non-pigmented lesions in the Japanese population.

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