Erosive lichen planus of the glans penis.

Erosive lichen planus (LP) of the genitalia is a rare and often underdiagnosed variant of LP. It can present with painful erosions. We report a case of a 55-year-old diabetic male presenting with an isolated chronic painful ulcer over the glans penis with no other mucocutaneous features. Investigations done for screening of sexually transmitted infections were negative. Clinical suspicion and dermoscopy of the lesion guided the further line of management, and histopathology confirmed the diagnosis of LP. The patient responded well to topical corticosteroids and oral antihistamines. Thus, suspicion of inflammatory genital dermatoses should be kept in mind for appropriate management.