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A 37-year-old male patient, Fitzpatrick skin phototype IV, a student living in Belem, Amazon region, in 2015 had a confirmed diagnosis of acquired immunodeficiency virus (HIV) infection, but did not initiate antiretroviral treatment at his own option. Three years after the diagnosis, erythematous maculae appeared on the dorsum of the nose with rapid progression to the entire face, with posterior diffuse infiltration and appearance of nodules on the chin and shoulder. In December 2018, the patient presented with exacerbation of the condition with an increase in infiltrated violaceous plaques and disseminated violaceous nodules. A histopathological biopsy of the skin was performed, confirming the diagnosis of angiomatoid proliferation suggestive of Kaposi's sarcoma (KS), with an important dissemination of this disease to the noble organs. In addition, it is important to note that he only started antiretroviral therapy (ART) after the exacerbation of Kaposi (December 2018). In such cases, chemotherapy associated with ART is crucial for the treatment and follow-up of the patient, since Kaposi's sarcoma develops relatively low in patients who do not have immunodeficiency. [ABSTRACT FROM AUTHOR]

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