Welcome to IANS

We are the world's first professional society devoted to the prevention and treatment of AIN (anal intraepithelial neoplasia) and anal cancer.

Our mission is to provide a forum for individuals with a broad spectrum of backgrounds, viewpoints and geographic origin, an exchange of ideas and dissemination of knowledge regarding the pathogenesis, diagnosis, treatment and prevention of anal neoplasia. 


IANS Europe Corner

New!European Monthly Meetings 

Join the committee the first Thursday of the month 
at 17:00 GMT +2

Next Meeting June 6, 2024

Join the Meeting

Watch Recording

Upcoming Courses


Career Center

  • Please log in or subscribe for more information

Donate Today

Help low income clinicians become a member of IANS by donating today!



Scientific Meeting - June 2025

Pre-Course - June 5, 2025

Scientific Meeting 
June 6-8, 2025

March Patient Seminar (recording)

IANS Podcast

The International Anal Neoplasia Society

P.O. Box 1543
Leesburg, Virginia 20177


Powered by Wild Apricot Membership Software