A patient presents to a physician because of pain during defecation accompanied by blood in the stool. Physical examination demonstrates a large perianal mass. Pathologic examination of the rectal mass following resection demonstrates a condyloma in which transformation to frank carcinoma has occurred. Which of the following viruses would most likely be associated with these lesions?
Epstein-Barr virus (EBV) Hepatitis B virus (HBV) Human herpesvirus type 8 (HHV8) Human papillomavirus (HPV)