Kaposi's sarcoma is a common tumour in later stages of HIV infection. Good prognosis' KS is where no internal organ is involved, CD4 count is greater than 200 cells and there is no history of opportunistic infections(or previous AIDS diagnosis. 'Poor prognosis' KS means that KS is in organs, or very large(with wounds), CD4 count is less than 200 and there is other HIV-related illness.
Attribution: Avallain