Case 186. Reference case 186A

　 　 　 　
　 Kaposi sarcoma in an HIV-negative 68 y-o male (biopsy from the facial lesion, HE). 　
　 　 　 　

　

 　 Proliferation of atypical polygonal cells is noted in the lesion. Lumen formation is focally discerned (HE). HHV-8 etiology is also indicated in the non-HIV cases.