CD4 and Kaposi's sarcoma: The aim of this retrospective study was to characterise the clinical features and course of oral HIV-KS in patients attending the oral medicine clinic at the School of Oral Health Sciences, University of Limpopo, Medunsa campus, South Africa, and to investigate differences between females and males with oral HIV-KS with regard to their CD4+ T-cell count, to the clinical presentation of oral HIV-KS and to survival rate.