PIGMENTED BOWEN'S DISEASE - AN UNUSUAL PRESENTATION

Bowen's disease consists of a squamous cell carcinoma in situ and the pigmented form of the disease is an unusual presentation. The authors describe a case of pigmented Bowen's disease in a male patient, 56 years, with an asymptomatic hyperpigmented plaque on the anterior surface of the right thigh for 10 years. Histopathological examination showed atypical keratinocytes on the entire epidermis with loss of polarity, melanin pigmentation in the basal layer and lichenoid lymphocytic infiltrate. A complete excision of the lesion with wide margins was made with no recurrence. Although relatively rare, pigmented Bowen's disease should always be remembered and included in the differential diagnosis of melanoma and other pigmented lesions. KEYWORDS – Bowen’s Disease; Skin pigmentation; Sunlight.