Photodynamic therapy in a patient with perianal extramammary Paget's disease

Extramammary Paget's disease is a rare neoplasm of apocrine gland-bearing areas of the skin. One of the most common localizations of such a tumor is the perianal area. Surgery is the most frequently reported therapy. However, it is an invasive procedure and complicated by a high recurrence rate. An alternative to surgical treatment may be non-invasive photodynamic therapy. We describe in this article the case of a 69-year-old patient with extramammary Paget's disease (a large tumor in the perianal area 22 × 18 cm) successfully treated with chlorin e6 photodynamic therapy.