Summary

Bowen’s disease is a cutaneous squamous cell carcinoma in situ, a rare precancerous disease most frequently manifested by an erythematous, scaly crusted plaque on sun-exposed areas. We report on the case of an 83-year-old female, with an asymptomatic, erythematous scaly plaque, within an uncommon topographic setting, a peculiar localization that prompted a series of inquiries into multiple potential differential diagnoses. We also review the main treatment options, among which surgical extension, cryotherapy, topical agents, or photodynamic therapy are of paramount importance.