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The aim of this study was to evaluate the effect of photodynamic therapy with topical methylaminolevulinate for the treatment of basal cell carcinomas in a single dermatological department. Ninety patients (34.4% men and 65.6% women) with a total of 157 basal cell carcinomas (111 superficial, 40 nodular, 6 unknown) were treated. Primary endpoint was clinically observed recurrence verified by biopsy 3, 6 and 12 months after treatment, then once a year. Estimated patient recurrence rates were 7% at 3 months, 19% at 6 months, 27% at 12 months and 31% at 24 months. Patients aged over 60 years had significantly higher estimated recurrence rates compared with patients aged 60 years or under (at 12 months, 35% vs. 19%, p?=?0.01). Estimated recurrence rates for tumours was 4% at 3 months, 11% at 6 months, 16% at 12 months and 19% at 24 months. There were significantly higher estimated recurrence rates for nodular basal cell carcinomas compared with superficial basal cell carcinomas (at 12 months, 28% vs. 13%, p?=?0.008). In conclusion, photodynamic therapy is only appropriate for treatment of superficial basal cell carcinoma, and, age above 60 years and histology showing nodular basal cell carcinoma are independent risk factors for developing a recurrent basal cell carcinoma.

Evaluation of Recurrence After Photodynamic Therapy with Topical Methylaminolaevulinate for 157 Basal Cell Carcinomas in 90 Patients