“…1,5,7,8 Topical podophyllin 25-30% or 5-fluororacil (5-FU) are futile in eradicating GCA. 1,2,4,7,8 Although successful preliminary reports of HPV vaccination have brought optimism for the future, immunotherapy still remains an investigational therapeutic tool. 1,10 Intralesional or systemic interferon-a2b may be effective in GCA because of its immunomodulating, antiproliferative and antiviral properties.…”