Penile lesions of LP are more frequently annular and lesions of psoriasis appear less scaly. Patients with genital lesions of scabies almost invariably have lesions elsewhere, and the vast majority of patients with genital psoriasis have psoriasis elsewhere. Genital lesions of molluscum are similar to nongenital lesions, but may frequently be pinpoint making differentiation from lichen nitidus and condyloma difficult. Differentiation between condyloma and bowenoid papulosis (BP) is not always possible. Features that raise suspicion for the diagnosis of BP (smooth surface and reddish brown color) are not consistent; hence, requiring a high index of suspicion. Another cause of scaly papular lesions of the penis is porokeratosis pterytropica, a unique type of porokeratosis that involves the anogenital region. Close inspection reveals the characteristic thin keratotic rim at the border. Lesions are sometimes misdiagnosed as psoriasis or condyloma. A biopsy specimen is required to confirm the diagnosis.