The photo shows Kaposi's sarcoma of an AIDS patient.
Kaposi's sarcoma in HIV infected people is caused by herpes simplex virus (HSV 8)-induced vascular neoplasia.
This form of Kaposi's sarcoma impresses by multiple, brown-red, partially indurated plaques, which can be as small as a pinhead or as large as the palm of a hand. Over time, plaques become confluent and can lead to formation of painful knots with the possibility of ulceration. Affected by this form are skin, oral and genital mucosa. If the disease is not treated, it leads to spreading and infestation of the entire skin, mucous membranes, lungs, liver, kidneys and lymph nodes.
Source: National Cancer InstituteOriginal file hereThis image is in the public domain and can be freely reused. Please credit the source and / or author listed above.