In situ squamous cell carcinoma of male and female external genitalia

In situ squamous cell carcinoma (SCC) of male and female genitalia can present as Bowen's disease (BD), erythroplasia of Queyrat, Bowenoid papulosis, Paget's disease, pseudoepitheliomatous keratotic, and micaceous balanitis. BD is SCC in situ. It affects both skin and mucous membranes and has the potential to progress to invasive SCC. BD can be found on any body site, including both sun-exposed and non-sun-exposed regions of the body. However, BD presenting on the genitalia is rare. Here, we present a report of three cases of in situ genital malignancies. Two females had BD, and one male had erythroplasia of Queyrat.