Viral warts Flashcards
What are genital warts caused by
They are caused by the many varieties of the human papillomavirus HPV, especially types 6 & 11
What types of HPV result in cervical cancer
types 16,18 &33
What are the features of genital warts
small (2 - 5 mm) fleshy protuberances which are slightly pigmented
may bleed or itch
What is podophyllotoxin
Podophyllin resin is a substance derived from the roots of the mayapple plant (Podophyllum peltatum) that grows in the wild in eastern North America. Podophyllotoxin is an antimitotic. It acts by preventing viral wart cells from dividing and multiplying. Eventually all the wart cells die and new healthy cells grow in their place.
What is the management of genital warts
topical podophyllum or cryotherapy are commonly used as first-line treatments depending on the location and type of lesion
What is best managed topically
multiple, non-keratinised warts are generally best treated with topical agents
What best responds to cryotherapy
solitary, keratinised warts respond better to cryotherapy
What is second line
imiquimod is a topical cream that is generally used second line