Nodular Kaposi'S Sarcoma Associated With Colon Cancer

Kaposi's sarcoma (KS) is a multicentric, malignant neoplasm of a complex and still unclear etiology. We present the case of 87-year-old man referred to our dermatology department with the coexistence of two separate malignances: nodular KS and colon cancer. The patient observed the cutaneous nodules 3 months after colon cancer surgery. The question arises of whether the intestinal malignancy associated weakened immune system exacerbated what was potentially preexisting but unapparent KS, or actually triggered development of KS.