A challenging case of pigmented Bowen’s disease and differential diagnosis of pagetoid pigmented skin lesions

摘要

Differentiation of pagetoid cutaneous neoplasms can be very challenging on hematoxylin and eosin-stained sections. We report a singular case of pigmented pagetoid Bowen’s disease showing transitional features between extramammary Paget’s disease and in situ squamous cell carcinoma.