Resumo: Sarcoma de Kaposi é um tumor vascular que afeta a parede dos vasos linfáticos. Possui quatro formas: clássica, endêmica, iatrogênica e associada ao HIV. É uma doença sistêmica, maligna, multifatorial e de curso variável. A apresentação inicial no pênis é rara, e mais observada em pacientes HIV positivos. Em pacientes HIV negativos, os casos que ocorrem nesta região, apresentam-se com pápulas, nódulos, placas e lesões verruciformes, assintomáticas. Para o tratamento da forma clássica, dispõem-se de excisão cirúrgica, crioterapia, eletrocirurgia, laser e radioterapia. Neste trabalho, é relatado um caso raro de um paciente com a forma clássica, em região peniana tratado com sucesso com radioterapia. Palavras-chave: Pênis, Radioterapia, Sarcoma de Kaposi Abstract: Kaposi´s sarcoma is a vascular tumor involving the wall of lymphatic vessels. There are four types: classic, endemic, iatrogenic and HIV-associated. It is a systemic, malignant and multifactorial disease and has a variable course. The primary presentation on the penis is uncommon and is mainly observed in HIV-positive patients. In HIV-negative individuals, asymptomatic papules, nodules, plaques and verrucous lesions are found. The treatment for the classic form involves surgery, cryotherapy, electrosurgery, laser and radiation therapy. The authors present a rare case of a patient with the classic form on the penis, who was successfully treated by radiation therapy.
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