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Trichrome vitiligo is a variant of active vitiligo. The changes of melanocytes, keratinocytes, and Langerhans cells may be involved in the pathogenesis of depigmentation in trichrome vitiligo.

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Isolated Kaposi's sarcoma (KS) of the glans penis is rare; only 37 cases are reported in the literature. Treatment of KS consists mostly of old modalities, some old methods in updated improved versions, and some new and experimental therapies. We report a case of isolated classical Kaposi's sarcoma involving multiple sites of the penis in a 54-year-old man who was treated with high-energy pulsed carbon dioxide (CO2) laser therapy, resulting in complete resolution of the lesions and no evidence of recurrence.

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